Journal Publications

Patrick’s Google Scholar Profile

160. Braun, J.L., Szwejkowski, C.J., Giri, A., Hopkins, P.E., “On the steady-state temperature rise during laser heating of multilayer thin films in optical pump-probe techniques,” to appear in Journal of Heat Transfer. Preprint.

159. Gaskins, J.T., Hopkins, P.E., Merrill, D.R., Bauers, S.R., Hadland, E., Johnson, D.C., Ko, D., Yum, J.H., Banerjee, S., Nordell, B.J., Paquette, M.M., Caruso, A.N., Lanford, W.A., Henry, P., Ross, L., Li, H., Li, L., Fresh, M., Rudolph, A.M., King, S.W., Investigation and Review of the Thermal, Mechanical, Electrical, Optical, and Structural Properties of Atomic Layer Deposited High-k Dielectrics: Beryllium Oxide, Aluminum Oxide, Hafnium Oxide, and Aluminum Nitride,” ECS Journal of Solid State Science and Technology 6, N189-N208 (2017). PDF.

158. Rost, C.M., Braun, J.L., Ferri, K., Backman, L., Giri, A., Opila, E., Maria, J.-P., Hopkins, P.E., “Hafnium nitride films for thermoreflectance transducers at high temperatures,” Applied Physics Letters 111, 151902 (2017). PDF.

157. Chen, L., Braun, J.L., Donovan, B.F., Hopkins, P.E., Poon, S.J., “Ballistic transport of long wavelength phonons and thermal conductivity accumulation in nanograined silicon-germanium alloys,” Applied Physics Letters 111, 131902 (2017). PDF (Supporting Information).

156. Giri, A., Hopkins, P.E., “Role of interfacial mode coupling of optical phonons on thermal boundary conductance,” Scientific Reports 7, 11011 (2017). PDF.

155. Nordell, B.J., Nguyen, T.D., Caruso, A.N., Purohit, S.S., Oyler, N.A., Lanford, W.A., Gidley, D., Gaskins, J.T., Hopkins, P.E., Henry, P., King, S.W., Paquette, M.M., “Carbon-enriched amorphous hydrogenated boron carbide films for very-low-k interlayer dielectrics,” Advanced Electronic Materials Early View DOI: 10.1002/aelm.201700116 (2017). PDF.

154. Shen, Y., Gaskins, J.T., Xie, X., Foley, B.M., Cheaito, R., Hopkins, P.E., Campbell, J.C., “Thermal analysis of high-power flip-chip bonded photodiodes,” Journal of Lightwave Technology 35, 4242-4246 (2017). PDF.

153. Zhou, X., Li, L., Dong, H., Giri, A., Hopkins P.E., Prezhdo, O.V., “Temperature dependence of electron-phonon coupling interactions in gold films rationalized by time-domain ab initio analysis,” Journal of Physical Chemistry C 121, 17488-17497 (2017). PDF.

152. Li, H., DeCoster, M.E., Ireland, R., Song, J., Hopkins, P.E., Katz, H., “Modification of the poly(bisdodecylquaterthiophene) (PQT12) structure for high and predominantly nonionic conductivity with matched dopants,” Journal of the American Chemical Society 139, 11149-11157 (2017). PDF. (Supporting Information).

151. Tomko, J.A., Giri, A., Donovan, B.F., Bubb, D.M., O’Malley, S.M., Hopkins, P.E., “Energy confinement and thermal boundary conductance effects on short-pulsed thermal ablation thresholds in thin films,” Physical Review B 96, 014108 (2017). PDF.

150. Zhao, X., Madan, D., Cheng, Y., Zhou, J., Li, H., Thon, S.M., Bragg, A.E., DeCoster, M.E., Hopkins, P.E., Katz, H.E., “High conductivity and electron transfer validation in an n-type fluoride anion-doped-polymer for thermoelectrics in air,” Advanced Materials 29, 1606928 (2017). PDF (Supporting Information).

149. Jensen, W.A., Liu, N., Rosker, E., Donovan, B.F., Foley, B., Hopkins, P.E., Floro, J.A., “Eutectoid transformations in Fe-Si alloys for thermoelectric applications,” Journal of Alloys and Compounds 721, 705-711 (2017). PDF.

148. Giri, A., Braun, J.L., Rost, C.M., Hopkins, P.E., “On the minimum limit to thermal conductivity of multi-atom component crystalline solid solutions based on impurity mass scattering,” Scripta Materialia 138, 134-138 (2017). PDF.

147. Giri, A., Braun, J.L., Tomko, J.A., Hopkins, P.E., “Reducing the thermal conductivity of chemically ordered binary alloys below the alloy limit via the alteration of phonon dispersion relations,” Applied Physics Letters 110, 233112 (2017). PDF (Supporting Information).

146. Giri, A., Hopkins, P.E., “Spectral Contributions to the Thermal Conductivity of C60 and the Fullerene Derivative PCBM,” Journal of Physical Chemistry Letters 8, 2153-2157 (2017). PDF.

145. Foley, B.M., Paisley, E.A., DiAntonio, C., Chavez, T., Blea-Kirby, M., Brennecka, G., Gaskins, J.T., Ihlefeld, J.F., Hopkins, P.E., “Phonon scattering mechanisms dictating the thermal conductivity of lead zirconate titanate (PbZr1-xTixO3) thin films across the compositional phase diagram,” Journal of Applied Physics 121, 205104 (2017). *Editor’s Pick. PDF.

144. Donovan, B.F., Tomko, J.A., Giri, A., Olson, D.H., Braun, J.L., Gaskins, J.T., Hopkins, P.E., “Localized thin film damage sourced and monitored via pump-probe modulated thermoreflectance,” Review of Scientific Instruments 88, 054903 (2017). PDF.

143. Braun, J.L., Hopkins, P.E., “Upper limit to the thermal penetration depth during modulated heating of multilayer thin films with pulsed and continuous wave lasers: A numerical study,” Journal of Applied Physics 121, 175701 (2017). PDF.

142. Jung, H., Szwejkowski, C.J., Pena-Francesch, A., Tomko, J.A., Allen, B., Ozdemir, S.K., Hopkins, P.E., Demirel, M.C., “Ultrafast laser-probing spectroscopy for studying molecular structure of protein aggregates,” Analyst 142, 1434-1441 (2017). *Cover Article. PDF (Supporting Information).

141. Szwejkowski, C.J., Giri, A., Kaehr, B., Warzoha, R.J., Donovan, B.F., Hopkins, P.E., “Molecular tuning of the vibrational thermal transport mechanisms in fullerene derivative solutions,” ACS Nano 11, 1389-1396 (2017). PDF (Supporting Information).

140. Jin, H., Marin, G., Giri, A., Tynell, T., Gastranius, M., Wilson, B.P., Kontturi, E., Tammelin, T., Hopkins, P.E., Karppinen, M., “Ultralow thermal conductivity in hybrid ZnO:nanocellulose superlattice thin films,” Journal of Materials Science 52, 6093-6099 (2017). PDF.

139. Donovan, B.F., Long, D.M, Creange, N.C., Moballegh, A., Dickey, E.C., Hopkins, P.E., “Impact of intrinsic point defect concentration on thermal transport in titanium dioxide,” Acta Materialia 127, 491-497 (2017). PDF.

138. Walton, S.G., Foley, B.M., Hernandez, S.C., Boris, D.R., Baraket, M., Duda, J.C., Robinson, J.T., Hopkins, P.E., “Plasma-based chemical functionalization of graphene to control the thermal transport at graphene-metal interfaces,” Surface & Coatings Technology 314, 148-154 (2017). PDF.

137. Mele, P., Saini, S., Tiwari, A., Hopkins, P.E., Miyazaki, K., Ichinose, A., Niemela, J., Karppinen, M., “Thermoelectric and structural characterization of Al-doped ZnO/Y2O3 multilayers,” Journal of Nanoscience and Nanotechnology 17, 1616-1621 (2017). PDF.

136. Talin, A.A., Jones, R.E., Hopkins, P.E., “Metal-organic frameworks for thermoelectric energy- conversion applications,” MRS Bulletin 41, 877-882 (2016). PDF.

135. Braun, J.F., King, S.W., Giri, A., Gaskins, J.T., Sato, M., Fujiseki, T., Fujiwara, H., Hopkins, P.E., “Breaking network connectivity leads to ultralow thermal conductivities in fully dense amorphous solids,” Applied Physics Letters 109, 191905 (2016). PDF (Supporting Information).

134. Giri, A., Braun, J.L., Hopkins, P.E., “Spectral contributions to thermal boundary conductance across solid, liquid and gas interface: A molecular dynamics simulations,” Journal of Physical Chemistry C 120, 24847-24846 (2016). PDF.

133. Grimley, E.D., Sachet, E., Donovan, B.F., Hopkins, P.E., Maria, J.-P., LeBeau, J.M., “Observing misfit dislocation interactions across thin film oxide heterostructures,” Microscopy and Microanalysis 22, 1506-1507 (2016). PDF.

132. Beechem, T.E., McDonald, A.E., Fuller, E., Talin, A., Rost, C., Maria, J.-P., Gaskins, J.T., Hopkins, P.E., Allerman, A.A., “Size Dictated Thermal Conductivity of GaN,” Journal of Applied Physics 120, 095104 (2016). PDF.

131. Wang, L., Cheaito, R., Braun, J.L., Giri, A., Hopkins, P.E., “Thermal conductivity measurements of non-metals via combined time- and frequency-domain thermoreflectance without a metal film transducer,” Review of Scientific Instruments 87, 094902 (2016). PDF.

130. Giri, A., Wee, S.-H., Jain, S., Hellwig, O., Hopkins, P.E., “Influence of chemical ordering on the thermal conductivity and electronic relaxation in FePt thin films in heat assisted magnetic recording applications,” Scientific Reports 6, 32077 (2016). PDF.

129. Zarzar, L.D., Swartzentruber, B.S., Donovan, B.F., Hopkins, P.E., Kaehr, B., “Using laser-induced thermal voxels to pattern diverse materials at the solid-liquid interface,” Applied Materials and Interfaces 8, 21134-21139 (2016). PDF.

128. Meyer, K.E., Cheaito, R., Paisley, E., Shelton, C.T., Braun, J.L., Maria, J.-P., Ihlefeld, J.F., Hopkins, P.E., “Crystalline coherence length effects on the thermal conductivity of MgO thin films,” Journal of Materials Science 51, 10408-10417 (2016). PDF.

127. Giri, A., Braun, J.L., Hopkins, P.E., “Effect of crystalline/amorphous interfaces on thermal transport across confined thin films and superlattices,” Journal of Applied Physics 119, 235305 (2016). PDF.

126. Nordell, B.J., Nguyen, T.D., Keck, C.L., Dhungana, S., Caruso, A.N., Lanford, W.A., Gaskins, J.T., Hopkins, P.E., Merrill, D.R., Johnson, D.C., Ross, L.L., Henry, P., King, S.W., Paquette, M.M., “Conquering the low-k death curve: Insulating boron carbide dielectrics with superior mechanical properties,” Advanced Electronic Materials 2, 1600073 (2016). PDF (Supporting Information).

125. Wang, J.-J., Wang, Y., Ihlefeld, J.F., Hopkins, P.E., Medlin, D.L., Chen, L-Q., “Tunable thermal conductivity via domain structure engineering in ferroelectric thin films: a phase-field simulation,” Acta Materialia 111, 220-231 (2016). PDF.

124. Braun, J.L., Baker, C.H., Giri, A., Elahi, M., Artyushkova, K., Beechem, T.E., Norris, P.M., Leseman, Z.C., Gaskins, J.T., Hopkins, P.E., “Size effects on the thermal conductivity of amorphous silicon thin films,” Physical Review B 93, 140201(R) (2016). PDF (Supporting Information).

123. Giri, A., Niemela, J.-P., Tynell, T., Gaskins, J.T., Donovan, B.F., Karppinen, M., Hopkins, P.E., “Heat-transport mechanisms in molecular building blocks of inorganic/organic hybrid superlattices,” Physical Review B 93, 115310 (2016). PDF (Supporting Information).

122. Giri, A., Hopkins, P.E., “Analytical model for thermal boundary conductance and equilibrium thermal accommodation coefficient at solid/gas interfaces,” The Journal of Chemical Physics 144, 084705 (2016). PDF.

121. Donovan, B.F., Sachet, E., Maria, J.-P., Hopkins, P.E., “Interplay between mass-impurity and vacancy phonon scattering effects on the thermal conductivity of doped cadmium oxide,” Applied Physics Letters 108, 021901 (2016). PDF.

120. Giri, A., Niemela, J.-P., Szwejkowski, C.J., Karppinen, M., Hopkins, P.E., “Reduction in thermal conductivity and tunable heat capacity of inorganic/organic hybrid superlattices,” Physical Review B 93, 024201 (2016). PDF.

119. George, M.C., Rodriguez, M.A., Kent, M.S., Brennecka, G.L., Hopkins, P.E., “Thermal conductivity of self-assembling symmetric block copolymer thin films of poly(styrene)-block-poly(methyl methacrylate),” Journal of Heat Transfer 138, 024505 (2016). PDF.

118. Bauer, M.L., Saltonstall, C.B., Leseman, Z.C., Beechem, T.E., Hopkins, P.E., Norris, P.M., “Thermal conductivity of turbostratic carbon nanofiber networks,” Journal of Heat Transfer 138, 061302 (2016). PDF.

117. Giri, A., Hopkins, P.E., “Transient thermal and nonthermal electron and phonon relaxation after short-pulsed laser heating of metals,” Journal of Applied Physics 118, 215101 (2015). PDF.

116.  Giri, A., Hopkins, P.E., Wessel, J. G., Duda, J.C., “Kapitza resistance and the thermal conductivity of amorphous superlattices,” Journal of Applied Physics 118, 165303 (2015). PDF.

115. Polanco, C.A., Rastgarkafshgarkolaei, R., Zhang, J., Li, N.Q., Norris, P.M., Hopkins, P.E., Ghosh, A.W., “Role of crystal structure and junction morphology on interface thermal conductance,” Physical Review B 92 144302 (2015). PDF.

114. Gaskins, J.T., Bulusu, A., Giordano, A.J., Duda, J.C., Graham, S., Hopkins, P.E., “Thermal conductance across phosphonic acid molecules and interfaces: Ballistic versus diffusive vibrational transport in molecular monolayers,” The Journal of Physical Chemistry C 119, 20931-20939 (2015). PDF (Supporting Information).

113. Loureiro, J., Mateus, T., Filonovich, S., Ferreira, M., Figueira, J., Rodrigues, A., Donovan, B.F., Hopkins, P.E., Ferreira, I., “Hydrogenated nanocrystalline silicon thin films with promising thermoelectric properties,” Applied Physics A 120, 1497-1502 (2015). PDF.

112. Foley, B.M., Hernandez, S., Duda, J.C., Robinson, J.T., Walton, S.G., Hopkins, P.E., “Modifying surface energy of graphene via plasma-based chemical functionalization to tune thermal and electrical transport at metal interfaces,” Nano Letters 15, 4876-4882 (2015). PDF (Supporting Information).

111. Erickson, K.J., Leonard, F., Stavila, V., Foster, M. E., Spataru, C.D., Jones, R.E., Foley, B.M., Hopkins, P.E., Allendorf, M.D., Talin, A.A., “Thin film thermoelectric metal-organic framework with high seebeck coefficient and low thermal conductivity,” Advanced Materials 27, 3453-3459 (2015)PDF (Supporting Information).

110. Cheaito, R., Gorham, C.S., Misra, A., Hattar, K., Hopkins, P.E., “Thermal conductivity measurements via time-domain thermoreflectance for the characterization of radiation induced damage,” Journal of Materials Research 31403 – 1412 (2015). PDF.

109. Niemela, J.-P., Giri. A., Hopkins, P.E., Karppinen, M., “Ultra-low thermal conductivity in TiO2:C superlattices,” Journal of Materials Chemistry A 3, 11527-11532 (2015). PDF.

108. Saini, S., Mele, P., Honda, H., Matsumoto, K., Miyazaki, K., Molina-Luna, L., Hopkins, P.E., “Influence of postdeposition cooling atmosphere on thermoelectric properties of 2% Al-doped ZnO thin films grown by pulsed laser deposition,” Journal of Electronic Materials 44, 1547-1553 (2015). PDF.

107. Giri, A., Gaskins, J.T., Donovan, B.F., Szwejkowski, C., Warzoha, R., Rodriguez, M.A., Ihlefeld, J., Hopkins, P.E., “Mechanisms of nonequilibrium electron-phonon coupling and thermal conductance at metal/non-metal interfaces,” Journal of Applied Physics 117, 105105 (2015). PDF.

106. Ihlefeld, J.F., Foley, B.M., Scrymgeour, D.A., Michael, J.R., McKenzie, B.B., Medlin, D.L., Wallace, M., Trolier-McKinstry, S., Hopkins, P.E., “Room temperature voltage tunable phonon thermal conductivity via reconfigurable interfaces in ferroelectric thin films,” Nano Letters 15, 1791-1795 (2015). PDF (Supporting Information).

105. Cheaito, R., Hattar, K., Gaskins, J.T., Duda, J.C., Beechem, T.E., Ihlefeld, J.F., Piekos, E.S., Baldwin, J.K., Misra, A., Hopkins, P.E., “Thermal flux limited electron Kapitza conductance in copper-niobium multilayers,” Applied Physics Letters 106, 093114 (2015). PDF (Supporting Information).

104. Szwejkowski, C., Creange, N., Sun, K., Giri, A., Donovan, B.F., Constantin, C., Hopkins, P.E., “Size effects in the thermal conductivity of gallium oxide (beta-Ga2O3) films grown via open-atmosphere annealing of gallium nitride (GaN),” Journal of Applied Physics 117, 084308 (2015). PDF.

103. Chou, S.S., Huang, Y.-K., Kim, J., Kaehr, B., Foley, B.M., Lu, P., Dykstra, C., Hopkins, P.E., Brinker, C.J., Huang, J., Dravid, V.P., “Controlling the metal to semiconductor transition of MoS2 and WS2 in solution,” Journal of the American Chemical Society 137, 1742-1745 (2015). PDF (Supporting Information).

102. Giri, A., Gaskins, J.T., Foley, B.M., Cheaito, R., Hopkins, P.E., “Experimental observation of the temperature dependence of nonequilibrium electron dynamics on electron-phonon coupling in thin gold films,” Journal of Applied Physics 117, 044305 (2015). PDF.

101. Cheaito, R., Gaskins, J.T., Caplan, M.E., Donovan, B.F., Foley, B.M., Giri, A., Duda, J.C., Szwejkowski, C.J., Constantin, C., Brown-Shaklee, H.J., Ihlefeld, J.F., Hopkins, P.E., “Thermal boundary conductance accumulation and interfacial phonon transmission: measurements and theory,” Physical Review B 91, 035423 (2015). PDF (Supporting Information).

100. Sachet, E., Shelton, C.T., Harris, J.S., Gaddy, B.E., Irving, D.L., Curtarolo, S., Donovan, B.F., Hopkins, P.E., Sharma, P.A., Sharma, A.L., Ihlefeld, J., Franzen, S., Maria, J.-P., “Dysprosium doped cadmium oxide: A gateway material for mid-infrared plasmonics,” Nature Materials 14, 414-420 (2015). PDF (Supporting Information).

99. Foley, B.M., Brown-Shaklee, H.J., Campion, M.J., Medlin, D.L., Clem, P.G., Ihlefeld, J.F., Hopkins, P.E., “Glass-like thermal conductivity of (010)-textured lanthanum-doped strontium niobate synthesized with wet chemical deposition,” Journal of the American Ceramic Society 98, 624-628 (2015). PDF.

98. Donovan, B.F., Szwejkowski, C.J., Duda, J.C., Cheaito, R., Yang, C.-Y.P., Medlin, D.L., Jones, R.E., Constantin, C., Hopkins, P.E., “Thermal boundary conductance across metal-gallium nitride (GaN) interfaces from 80 – 450 K,” Applied Physics Letters 105, 203502 (2014). PDF.

97. Pradhan, A.K., Mundle, R.M., Santiago, K., Skuza, J.R., Xiao, B., Song, K.D., Bahoura, M., Cheaito, R., Hopkins, P.E., “Extreme tunability in aluminum doped zinc oxide plasmonic materials for near-infrared applications,” Scientific Reports 4, 6415 (2014). PDF (Supporting Information).

96. Donovan, B.F., Foley, B.M., McKenzie, B.B., Maria, J.P., Ihlefeld, J.F., Hopkins, P.E., “Spectral phonon scattering effects on the thermal conductivity of nano-grained barium titanate,” Applied Physics Letters 105, 082907 (2014). PDF (Supporting Information).

95. Giri, A., Hopkins, P.E., “Spectral analysis of thermal boundary conductance across solid/classical liquid interfaces: a molecular dynamics study,” Applied Physics Letters 105, 033106 (2014). PDF.

94. Tynell, T. Giri, A., Gaskins, J., Hopkins, P.E., Mele, P., Miyazaki, K., Karppinen, M., “Efficiently suppressed thermal conductivity in ZnO thin films via periodic introduction of organic layers,” Journal of Materials Chemistry A 2, 12150-12152 (2014). PDF.

93. Gorham, C.S., Hattar, K., Cheaito, R., Duda, J.C., Gaskins, J.T., Beechem, T.E., Ihlefeld, J.F., Biedermann, L.B., Piekos, E.S., Medlin, D.L., Hopkins, P.E., “Ion-irradiation of the native oxide/silicon surface increases the thermal boundary conductance across aluminum/silicon interfaces,” Physical Review B 90, 024301 (2014). PDF.

92. Gorham, C.S., Gaskins, J.T., Parsons, G.N., Losego, M.D., Hopkins, P.E., “Density dependence of the room temperature thermal conductivity of atomic layer deposition grown amorphous alumina (Al2O3),” Applied Physics Letters 104, 253107 (2014) . PDF (Supporting Information).

91. Giri, A., Foley, B.M., Hopkins, P.E., “Influence of hot electron scattering and electron-phonon interactions on thermal boundary conductance at metal/non-metal interfaces,” Journal of Heat Transfer 136, 092401 (2014). PDF.

90. Caplan, M.E., Giri, A., Hopkins, P.E., “Analytical model for the effects of wetting on thermal boundary conductance across solid/classical liquid interfaces,” The Journal of Chemical Physics 140, 154701 (2014). PDF.

89. Zhou, X.-W., Jones, R.E., Hopkins, P.E., Beechem, T.E., “Thermal boundary conductance between Al films and GaN nanowires investigated with molecular dynamics,” Physical Chemistry Chemical Physics 16, 9403-9410 (2014). PDF.

88. Saini, S., Mele, P., Honda, H., Henry, D.J., Hopkins, P.E., Molina-Luna, L., Matsumoto, K., Miyazaki, K., Ichinose, A., “Enhanced thermoelectric performance of AZO thin films on amorphous substrate,” Japanese Journal of Applied Physics 53, 060306 (2014). PDF.

87. Foley, B.M., Gorham, C.S., Duda, J.C., Cheaito, R., Szwejkowski, C.J., Constantin, C., Kaehr, B., Hopkins, P.E., “Protein thermal conductivity measured in the solid state reveals anharmonic interactions of vibrations in a fractal structure,” Journal of Physical Chemistry Letters 5, 1077-1082 (2014). PDF.

86. Ravichandran, J.*, Yadav, A.K.*, Cheaito, R.*, Rossen, P.B., Soukiassian, A., Suresha, Duda, J.C.Foley, B.M., Lee, C.-H., Zhu, Y., Lichtenberger, A.W., Moore, J.E., Muller, D.A., Schlom, D.G., Hopkins, P.E., Majumdar, A., Ramesh, R., Zurbuchen, M.A., “Crossover from incoherent to coherent phonon scattering in epitaxial oxide superlattices,” Nature Materials 13, 168-172 (2014). *Joint First Authors. PDF (Supporting Information).

85. Hopkins, P.E., “Thermal transport across solid interfaces with nanoscale imperfections: Effects of roughness, disorder, dislocations and bonding on thermal boundary conductance,” ISRN Mechanical Engineering 2013, 682586 (2013).  Invited and open access (http://www.hindawi.com/isrn/me/2013/682586/). PDF.

84. Hopkins, P.E., Duda, J.C., Kaehr, B., Zhou, X.W., Yang, C.-Y.P., Jones, R.E., “Ultrafast and steady-state laser heating effects on electron relaxation mechanisms in thin gold films,” Applied Physics Letters 103, 211910 (2013). PDF.

83. English, T.S., Phinney, L.M., Hopkins, P.E., Serrano, J.R., “Mean free path effects on the experimentally measured thermal conductivity of single-crystal silicon microbridges,” Journal of Heat Transfer 135, 091103 (2013). PDF.

82. Duda, J.C., Hopkins, P.E., Shen, Y., Gupta, M.C., “Thermal transport in organic semiconducting polymers,” Applied Physics Letters 102, 251912 (2013). PDF (Supporting Information).

81. Polanco, C., Saltonstall, C.B., Norris, P.M., Hopkins, P.E., Ghosh, A.W., “Impedance matching of atomic thermal interfaces using primitive block decomposition,” Nanoscale and Microscale Thermophysical Engineering 17, 263 – 279 (2013). *Cover Article. PDF.

80. Saltonstall, C.B., Serrano, J.S., Norris, P.M., Hopkins, P.E., Beechem, T.E., “Single element Raman thermometry,” Review of Scientific Instruments 84, 064903 (2013). PDF.

79. Zhou, X. W., Jones, R.E., Duda, J.C., Hopkins, P.E., “Molecular dynamics study of the effects of material properties on thermal boundary conductance,” Physical Chemistry Chemical Physics 15, 11078 – 11087 (2013). PDF.

78. Zhou, Q., Cross, A.S., Fu, Y., Beling, A., Foley, B.M., Hopkins, P.E., Campbell, J.C., “Balanced InP/InGaAs photodiodes with 1.5 W output power,” IEEE Photonics Journal 5, 6800307 (2013). PDF.

77. Jones, R.E., Duda, J.C., Zhou, X.W., Kimmer, C.J., Hopkins, P.E., “Investigation of size and electronic effects on Kapitza conductance with non-equilibrium molecular dynamics,” Applied Physics Letters 102, 183119 (2013). PDF.

76. Chou, S. S., Kaehr, B., Kim, J., Foley, B.M., De, M., Hopkins, P.E., Huang, J., Brinker, C.J., Dravid, V.P., “Chemically exfoliated MoS2 as near-infrared photothermal agents,” Angewandte Chemie International Edition 52, 4160-4164 (2013). PDF.

75. Hopkins, P.E., Adamo, C., Ye, L., Huey, B.D., Lee, S.R., Schlom, D.G., Ihlefeld, J.F., “Effects of coherent ferroelastic domain walls on the thermal conductivity and Kapitza conductance in bismuth ferrite,” Applied Physics Letters 102, 121903 (2013). PDF. (Supporting Information)

74. Zhou, X.W., Jones, R.E., Kimmer, C.J., Duda, J.C., Hopkins, P.E., “Relationship of thermal boundary conductance to structure from an analytical model plus molecular dynamics simulations,” Physical Review B 87, 094303 (2013). PDF.

73. Duda, J.C., Yang, C.-Y. P., Foley, B.M., Cheaito, R., Medlin, D.L., Jones, R.E., Hopkins, P.E., “Influence of interfacial properties on thermal transport at gold:silicon contacts,” Applied Physics Letters 102, 081902 (2013). PDF.

72. Saltonstall, C.B., Polanco, C., Duda, J.C., Ghosh, A.W., Norris, P.M., Hopkins, P.E., “Effect of interface adhesion and impurity mass on phonon transport at atomic junctions,” Journal of Applied Physics 113, 013516 (2013). PDF.

71. Duda. J.C., Hopkins, P.E., Shen, Y., Gupta, M.C., “Exceptionally low thermal conductivities of films of the fullerene derivative PCBM,” Physical Review Letters 110, 015902 (2013). PDF.

70. Foley, B.M., Brown-Shaklee, H.J., Duda, J.C., Cheaito, R.C., Ihlefeld, J.F., Hopkins, P.E., “Measurement of thermal conductivity and thermal boundary conductance of nano-grained SrTiO3 thin films,” Applied Physics Letters 101, 231908 (2012). PDF.

69. Cheaito, R.C., Duda, J.C., Beechem, T.E., Hattar, K., Ihlefeld, J.F., Medlin, D.L., Rodriguez, M.A., Campion, M.J., Piekos, E.S., Hopkins, P.E., “Size effects on the thermal conductivity of silicon-germanium thin films,” Physical Review Letters 109, 195901 (2012). PDF.

68. Duda, J.C., Kimmer, C.J., Soffa, W., Zhou, X. W., Jones, R.J., Hopkins, P.E., “Influence of crystallographic orientation and anisotropy on Kapitza conductance via classical molecular dynamics simulations,” Journal of Applied Physics 112, 093515 (2012). PDF.

67. Dongmo, P., Zhong, Y., Attia, P., Bomberger, C., Cheaito, R., Ihlefeld, J.F., Hopkins, P.E., Zide, J., “Enhanced room temperature electronic and thermoelectric properties of the dilute bismuthide InGaBiAs,” Journal of Applied Physics 112, 093710 (2012). PDF.

66. Duda, J.C., English, T.S., Peikos, E.S., Beechem, T.E., Kenny, T.W., Hopkins, P.E., “Bidirectionally tuning Kapitza conductance through the inclusion of substitutional impurities,” Journal of Applied Physics 112, 073519 (2012). PDF.

65. Lensch-Falk, J.L., Banga, D., Hopkins, P.E., Robinson, D., Stavila, V., Sharma, P., Medlin, D.L., “Microstructural study of electrodeposited nano-crystalline Sb2Te3 thin films,” Thin Solid Films 520, 6109 (2012). PDF.

64. Hopkins, P.E., Kaehr, B., Piekos, E.S., Dunphy, D., Brinker, C.J. ,”Minimum thermal conductivity considerations in aerogel thin films,” Journal of Applied Physics 111, 113532 (2012). PDF.

63. Hopkins, P.E., Ding, M., Poon, S.J., “Contributions of electron and phonon transport to the thermal conductivity of GdFeCo and TbFeCo amorphous rare-earth transition-metal alloys,” Journal of Applied Physics 111, 103533 (2012). PDF.

62. Le, N. Q., Duda, J.C., English, T.S., Hopkins, P.E., Beechem, T.E., Norris, P.M., “Tuning phonon transport in multilayered structures using a mismatch-based particle model,” Journal of Applied Physics 111, 084310 (2012). PDF.

61. Duda, J.C., Hopkins, P.E., “Systematically controlling Kapitza conductance via chemical etching,” Applied Physics Letters 100, 111602 (2012). PDF.

60. Hopkins, P.E., Baraket, M., Barnat, E.V., Beechem, T.E., Kearney, S.P., Duda, J.C., Robinson, J., Walton, S., “Manipulating thermal conductance at metal-graphene contacts via chemical functionalization,” Nano Letters 12, 590-595 (2012). PDF.

59. Norris, P.M., Smoyer, J.L., Duda, J.C., Hopkins, P.E., “Prediction and measurement of thermal transport across interfaces between isotropic solids and graphitic materials,” Journal of Heat Transfer 134, 020910 (2012). PDF.

58. Goettler, D., Su, M.F., Reinke, C.M., Alaie, S., Hopkins, P.E., Olsson, R.H., El-Kady, I., Leseman, Z.C., “Realization of a 33 GHz phononic crystal fabricated in a free standing membrane,” AIP Advances 1, 020910 (2011). PDF.

57. Hopkins, P.E., “Dispersion considerations affecting phonon-mass impurity scattering rates,” AIP Advances 1, 041705 (2011). PDF.

56. Duda, J.C., English, T.S, Piekos, E.S., Soffa, W.A., Zhigilei, L.V., Hopkins, P.E., “Implications of cross-species interactions on the temperature dependence of Kapitza conductance,” Physical Review B 84, 193301 (2011). PDF.

55. Hopkins P.E., Mittal, M., Phinney, L.M., Grillet, A.M., Furst, E.M., “Ultra-low thermal conductivity of ellipsoidal TiO2 nanoparticle films,” Applied Physics Letters 99, 133106 (2011). PDF.

54. Hopkins, P.E., Beechem, T.E., Duda, J.C., Hattar, K., Ihlefeld, J.F., Rodriguez, M.A., Piekos, E.S., “Influence of anisotropy on thermal boundary conductance at solid interfaces,” Physical Review B 84, 125408 (2011). PDF.

53. Hopkins, P.E., Duda, J.C., Petz, C.W., Floro, J.A., “Controlling thermal conductance through quantum dot roughening at interfaces,” Physical Review B 84, 035438 (2011)PDF.

52. Hopkins, P.E., Hattar, K., Beechem, T., Ihlefled, J.F., Medlin, D.L., Piekos, E.S., “Reduction in thermal boundary conductance due to proton implantation in silicon and sapphire,” Applied Physics Letters 98, 231901 (2011). PDF. (Addendum)

51. Hopkins, P.E., Duda, J.C., Clark, S.P., Hains, C.P., Rotter, T.J., Phinney, L.M., Balakrishnan, G., “Effect of dislocation density on the thermal boundary conductance across GaSb/GaAs interfaces,” Applied Physics Letters 98, 161913 (2011). PDF.

50. Hopkins, P.E., Phinney, L.M., Rakich, P.T., Olsson, R.H., El-Kady, I., “Phonon considerations in the reduction of thermal conductivity in phononic crystals,” Applied Physics A 103, 575-579 (2011). PDF.

49. Clark, S.P.R., Ahirwar, P., Jaeckel, F., Hains, C.P., Albrecht, A.R., Rotter, T.J., Dawson, L.R., Balakrishnan, G., Hopkins, P.E., Phinney, L.M., Hader, J., Moloney, J.V., “Growth and thermal conductivity analysis of polycrystalline GaAs on CVD diamond for use in thermal management of high-power semiconductor lasers,” Journal of Vacuum Science and Technology B 29, 03C130 (2011). PDF.

48. Duda, J.C., Norris, P.M., Hopkins, P.E., “On the linear temperature dependence of phonon thermal boundary conductance in the classical limit,” Journal of Heat Transfer 133, 074501 (2011). PDF.

47. Duda, J.C., Saltonstall, C.B., Norris, P.M., Hopkins, P.E., “Assessment and prediction of thermal transport at solid-self-assembled monolayer junctions,” Journal of Chemical Physics 134, 094704 (2011). PDF.

46. Hopkins, P.E., Kaehr, B.J., Phinney, L.M., Koehler, T.P., Grillet, A.M., Dunphy, D., Garcia, F., Brinker, C.J., “Measuring the thermal conductivity of porous, transparent SiO2 films with time domain thermoreflectance,” Journal of Heat Transfer 133, 061601 (2011). PDF.

45. Hopkins, P.E., Duda, J.C., Norris, P.M., “Anharmonic phonon interactions at interfaces and contributions to thermal boundary conductance,” Journal of Heat Transfer 133, 062401 (2011). PDF.

44. Hopkins, P.E., Phinney, L.M., Serrano, J.R., “Re-examining electron-Fermi relaxation in Au with a nonlinear thermoreflectance model,” Journal of Heat Transfer 133, 044505 (2011). PDF.

43. Hopkins, P.E., Reinke, C.M., Su, M.F., Olsson, R.H., Shaner, E.A., Leseman, Z.C., Serrano, J.R., Phinney, L.M., El-Kady, I., “Reduction in the thermal conductivity of single crystalline silicon by phononic crystal patterning,” Nano Letters 11, 107-112 (2011). PDF.

42. Hopkins, P.E., Serrano, J.R., Phinney, L.M., Li, H., Misra, A., “Boundary scattering effects during electron thermalization in nanoporous gold,” Journal of Applied Physics 109, 013524 (2011). PDF.

41. Hopkins, P.E., Serrano, J.R., Phinney, L.M., “Comparison of thermal conductivity and thermal boundary conductance measurements using continuous-wave and ultrashort-pulsed thermoreflectance techniques,” International Journal of Thermophysics 31, 2380-2393 (2010). PDF.

40. Hopkins, P.E., Bauer, M.L., Duda, J.C., Smoyer, J.L., English, T. S., Norris, P.M., Beechem, T.E., Stewart, D.A., “Enhancement in the thermoelectric figure of merit and breakdown of the Wiedemann-Franz Law in noble metals under strong electron-phonon nonequilibrium,” Journal of Applied Physics 108, 104907 (2010). PDF.

39. Duda, J.C., Beechem, T.E., Smoyer, J.L., Norris, P.M., Hopkins, P.E., “The role of dispersion on phononic thermal boundary conductance,” Journal of Applied Physics 108, 073515 (2010)PDF.

38. Hopkins, P.E., “Influence of inter- and intraband transitions to electron temperature decay in noble metals after short pulsed laser heating,” Journal of Heat Transfer 132, 122402 (2010). PDF.

37. Beechem, T.E., Duda, J.C., Hopkins, P.E., Norris, P.M., “Contribution of optical phonons to thermal boundary conductance,” Applied Physics Letters 97, 061907 (2010). PDF.

36. Hopkins, P.E., Phinney, L.M., Serrano, J.R., Beechem, T.E., “Effects of surface roughness and oxide layer on thermal boundary conductance at aluminum/silicon interfaces,” Physical Review B 82, 085307 (2010). PDF.

35. Hopkins, P.E., Serrano, J.R., Phinney, L.M., Kearney, S.P., Grasser, T.W., Harris, C.T., “Criteria for cross-plane dominated thermal transport in multilayer thin film systems during modulated laser heating,” Journal of Heat Transfer 132, 081302 (2010). PDF.

34. Duda, J.C., Smoyer, J.L., Norris, P.M., Hopkins, P.E., Beechem, T.E., “Inelastic phonon interactions at solid-graphite interfaces,” Superlattices and Microstructures 47, 550 (2010)PDF.

33. Duda, J.C., Hopkins, P.E., Smoyer, J.L., Bauer, M.L., English, T.S., Saltonstall, C.B., Norris, P.M., “On the assumption of detailed balance in prediction of diffusive transmission probability during interfacial transport,” Nanoscale and Microscale Thermophysical Engineering 14, 21-33 (2010). PDF.

32. Hopkins, P.E., Beechem, T.E., “Effects of propagating and localized modes on the minimum phonon thermal conductivity of layered solids above the plateau,” Nanoscale and Microscale Thermophysical Engineering 14, 51-61 (2010). PDF.

31. Hopkins, P.E., Barnat, E.V., Cruz-Campa, J.L., Okandan, M., Nielson, G.N., “Excitation frequency dependence of Auger recombination in surface treated Si wafers,” Journal of Applied Physics 107, 053713 (2010). PDF.

30. Hopkins, P.E., “Thermoreflectance dependence on Fermi surface electron number density perturbations,” Applied Physics Letters 96, 041901 (2010). PDF.

29. Hopkins, P.E., “Influence of electron-boundary scattering on thermoreflectance calculations after intra- and interband transitions induced by short-pulsed laser absorption,” Physical Review B 81, 035413 (2010). PDF.

28. Hopkins, P.E., Beechem, T.E., Duda, J.C., Smoyer, J.L., Norris, P.M., “Effects of sub-conduction band excitations on thermal conductance at metal-metal interfaces,” Applied Physics Letters 96, 011907 (2010). PDF.

27. Hopkins, P.E., “Contributions of inter- and intraband excitations to electron heat capacity and electron-phonon coupling in noble metals,” Journal of Heat Transfer 132, 014504 (2010). PDF.

26. Beechem, T.E., Hopkins, P.E., “Predictions of thermal boundary conductance for systems of disordered solids and interfaces,” Journal of Applied Physics 106, 124301 (2009). PDF.

25. Hopkins, P.E., Serrano, J.R., “Phonon localization and thermal rectification in asymmetric harmonic chains using a nonequilibrium Green’s function formalism,” Physical Review B 80, 201408(R) (2009). PDF.

24. Hopkins, P.E., Rakich, P.T., Olsson, R.H., El-kady, I.F., Phinney, L.M., “Origin of reduction in phonon thermal conductivity of microporous solids,” Applied Physics Letters 95, 161902 (2009). PDF.

23. Hopkins, P.E., Norris, P.M., Tsegaye, M.S., Ghosh, A.W., “Extracting phonon thermal conductance across nanoscale junctions: Nonequilibrium Green’s Function approach compared to semiclassical methods,” Journal of Applied Physics 106, 063503 (2009). PDF.

22. Hopkins, P.E., Stewart, D.A., “Contribution of d-band electrons to ballistic transport and scattering during electron-phonon nonequilibrium in thin Au films using an ab initio density of states,” Journal of Applied Physics 106, 053512 (2009). PDF.

21. Hopkins, P.E., “Multiple phonon processes contributing to inelastic scattering during thermal boundary conductance at solid interfaces,” Journal of Applied Physics 106, 013528 (2009). PDF.

20. Duda, J.C., Smoyer, J.L., Norris, P.M., Hopkins, P.E., “Extension of the diffuse mismatch model for thermal boundary conductance between isotropic and anisotropic materials,” Applied Physics Letters 95, 031912 (2009). PDF.

19. Hopkins, P.E., Piekos, E.S., “Lower limit to phonon thermal conductivity of disordered, layered solids,” Applied Physics Letters 94, 181901 (2009). PDF.

18. Hopkins, P.E., “Effects of electron-boundary scattering on changes in thermoreflectance in thin metal films undergoing intraband transitions,” Journal of Applied Physics 105, 093517 (2009). PDF.

17. Hopkins, P.E., Kassebaum, J.L., Norris, P.M, “Effects of electron-interface scattering on electron-phonon equilibration in Au films,” Journal of Applied Physics 105, 023710 (2009). PDF.

16. Hopkins, P.E., Norris, P.M., “Contribution of ballistic electron transport to energy transfer during electron-phonon nonequilibrium in thin metal films,” Journal of Heat Transfer 131, 043208 (2009). PDF.

15. Norris, P.M., Hopkins, P.E., “Examining interfacial diffuse phonon scattering through transient thermoreflectance measurements of thermal boundary conductance,” Journal of Heat Transfer 131, 043207 (2009). PDF.

14. Hopkins, P.E., Phinney, L.M., “Thermal conductivity measurements on polysilicon microbridges with the 3-omega technique,” Journal of Heat Transfer 131, 043201 (2009). PDF.

13. Hopkins, P.E., Norris, P.M., “Relative contribution of inelastic and elastic phonon scattering on thermal boundary conductance across solid interfaces,” Journal of Heat Transfer 131, 022402 (2009). PDF.

12. Hopkins, P.E., Smoyer, J.L, Duda, J.C., Salaway, R.N., Norris, P.M., “Effects of inter- and intraband transitions on electron-phonon coupling and electron heat capacity after short-pulsed laser heating,” Nanoscale and Microscale Thermophysical Engineering 12, 320-333 (2008). PDF.

11. Salaway, R.N., Hopkins, P.E., Norris, P.M., Stevens, R.J., “Phonon contribution to thermal boundary conductance at metal interfaces using embedded atom method simulations,” International Journal of Thermophysics 29, 1987-1996 (2008). PDF.

10. Hopkins, P.E., Norris, P.M., Phinney, L.M., Policastro, S.A., Kelly, R.G., “Thermal conductivity in nanoporous gold films during electron-phonon nonequilibrium,” Journal of Nanomaterials 2008, 418050 (2008). PDF.

9. Hopkins, P.E., Norris, P.M., Stevens, R.J., Beechem, T.E., Graham, S., “Influence of interfacial mixing on thermal boundary conductance across a chromium/silicon interface,” Journal of Heat Transfer 130, 011806 (2008). PDF.

8. Hopkins, P.E., Norris, P.M., Stevens, R.J., “Influence of inelastic scattering at metal-dielectric interfaces,” Journal of Heat Transfer 130, 022401 (2008). PDF.

7. Hopkins, P.E., Norris, P.M., “Effects of joint vibrational states on thermal boundary conductance,” Microscale and Nanoscale Thermophysical Engineering 11, 247-257 (2007). PDF.

6. Hopkins, P.E., Salaway, R.N., Stevens, R.J., Norris, P.M., “Temperature dependent thermal boundary conductance at Al/Al2O3 and Pt/Al2O3 interfaces,” International Journal of Thermophysics 28, 947-957 (2007). PDF.

5. Hopkins, P.E., Norris, P.M., “Substrate influence in electron-phonon coupling measurements of thin Au films,” Applied Surface Science 253, 6289-6294 (2007). PDF.

4. Hopkins, P.E., Klopf, J.M., Norris, P.M., “Influence of interband transitions on electron-phonon coupling measurements in Ni films,” Applied Optics 46, 2076-2083 (2007). PDF.

3. Beechem, T.E., Graham, S., Hopkins, P., Norris, P., “The role of interface disorder on thermal boundary resistance using a virtual crystal approach,” Applied Physics Letters 90, 054104 (2007). PDF.

2. Hopkins, P.E., Norris, P.M., “Thermal boundary conductance response to a change in Cr/Si interfacial properties,” Applied Physics Letters 89, 131909 (2006). PDF.

1. Caffrey, A.P., Hopkins, P.E., Klopf, J.M, Norris, P.M., “Thin film non-noble transition metal thermophysical properties,” Microscale Thermophysical Engineering 9, 365-377 (2005). PDF.

Book Chapters and Reviews

2. Beckman, S. P., Bottner, H., Chalopin, Y., Dames, C., Greaney, P.A., Hopkins, P.E., Li, B., Mori, T., Nishimatsu, T., Pipe, K., Venkatasubramanian, R. (Eds.), Nanoscale Thermoelectric Materials: Thermal and Electrical Transport, and Applications to Solid-State Cooling and Power Generation, in Material Research Society Symposium Proceedings 1543 (Cambridge University Press, New York, 2013).

1. Hopkins, P.E., Duda, J.C., “Introduction to Nanoscale Thermal Conduction,” in Heat Transfer – Mathematical Modelling, Numerical Methods, and Information Technology, Belmiloudi, A. (Ed.), InTech, pp. 305 – 330, ISBN: 978-953-307-550-1 (2011).   Invited and open access (http://www.intechopen.com/articles/show/title/introduction-to-nanoscale-thermal-conduction). PDF.

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