Experimental Investigation of Size Effects on the Thermal Conductivity of Silicon-Germanium Alloy Thin Films
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We experimentally investigate the role of size effects and boundary scattering on the thermal conductivity of silicon-germanium alloys. The thermal conductivities of a series of epitaxially grown Si(1-x)Ge(x) thin films with varying thicknesses and compositions were measured with time-domain thermoreflectance. The resulting conductivities are found to be 3 to 5 times less than bulk values and vary strongly with film thickness. By examining these measured thermal conductivities in the context of a previously established model, it is shown that long wavelength phonons, known to be the dominant heat carriers in alloy films, are strongly scattered by the film boundaries, thereby inducing the observed reductions in heat transport. These results are then generalized to silicon-germanium systems of various thicknesses and compositions; we find that the thermal conductivities of Si(1-x)Ge(x) superlattices are ultimately limited by finite size effects and sample size rather than periodicity or alloying. This demonstrates the strong influence of sample size in alloyed nanosystems. Therefore, if a comparison is to be made between the thermal conductivities of superlattices and alloys, the total sample thicknesses of each must be considered.
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Over the past two decades, TDTR has emerged and evolved as a reliable, powerful, and versatile technique to measure thermal properties of a wide range of bulk and thin film materials and their interfaces.
“Over the past two decades, ultrafast laser-based time-domain thermoreflectance (TDTR) has emerged and evolved as a reliable, powerful, and versatile technique to measure the thermal properties of a wide range of bulk and thin film materials and their interfaces.”
From Tutorial: Time-domain thermoreflectance (TDTR) for thermal property characterization of bulk and thin film materials (2018) · cites this paper as [29]
Cites
Complex thermoelectric materials
Snyder, G. J., & Toberer, E. S. (2008) · Nature Materials · doi:10.1038/nmat2090 · Cited by 11,496 · see citing works
Surface generation and detection of phonons by picosecond light pulses
Thomsen, C., Grahn, H. T., Maris, H. J., & Tauc, J. (1986) · Physical review. B, Condensed matter · doi:10.1103/physrevb.34.4129 · Cited by 1,636 · see citing works
Analysis of heat flow in layered structures for time-domain thermoreflectance
Cahill, D. G. (2004) · Review of Scientific Instruments · doi:10.1063/1.1819431 · Cited by 1,543 · see citing works
Enhanced Thermoelectric Figure-of-Merit in Nanostructured p-type Silicon Germanium Bulk Alloys
Joshi, G., Lee, H., Lan, Y., Wang, X., Zhu, G., Wang, D., Gould, R. W., Cuff, D. C., Tang, M. Y., Dresselhaus, M. S., et al. (2008) · Nano Letters · doi:10.1021/nl8026795 · Cited by 1,120 · see citing works
Thermal Conductivity of the Elements
Ho, C.-Y., Powell, R. W., & Liley, P. E. (1972) · Journal of Physical and Chemical Reference Data · doi:10.1063/1.3253100 · Cited by 912 · see citing works
Enhanced thermoelectric figure of merit in nanostructured n-type silicon germanium bulk alloy
Wang, X. W., Lee, H., Lan, Y., Zhu, G., Joshi, G., Wang, D. Z., Yang, J., Muto, A., Tang, M. Y., Klatsky, J., et al. (2008) · Applied Physics Letters · doi:10.1063/1.3027060 · Cited by 753 · see citing works
Thermal conductivity of Si–Ge superlattices
Lee, S. M., Cahill, D. G., & Venkatasubramanian, R. (1997) · Applied Physics Letters · doi:10.1063/1.118755 · Cited by 710 · see citing works
Schmidt, A. J., Chen, X., & Chen, G. (2008) · Review of Scientific Instruments · doi:10.1063/1.3006335 · Cited by 655 · see citing works
Thermometry and Thermal Transport in Micro/Nanoscale Solid-State Devices and Structures
Cahill, D. G., Goodson, K., & Majumdar, A. (2002) · Journal of Heat Transfer · doi:10.1115/1.1454111 · Cited by 611 · see citing works
Coherent Phonon Generation and Detection by Picosecond Light Pulses
Thomsen, C., Strait, J., Vardeny, Z., Maris, H. J., Tauc, J., & Hauser, J. J. (1984) · Physical Review Letters · doi:10.1103/physrevlett.53.989 · Cited by 581 · see citing works
Size effects in molecular dynamics thermal conductivity predictions
Sellan, D. P., Landry, E. S., Turney, J. E., McGaughey, A. J. H., & Amon, C. H. (2010) · Physical Review B · doi:10.1103/physrevb.81.214305 · Cited by 508 · see citing works
Garg, J., Bonini, N., Kozinsky, B., & Marzari, N. (2011) · Physical Review Letters · doi:10.1103/physrevlett.106.045901 · Cited by 491 · see citing works
Thermal conductivity of Si/SiGe superlattice nanowires
Li, D., Wu, Y., Fan, R., Yang, P., & Majumdar, A. (2003) · Applied Physics Letters · doi:10.1063/1.1619221 · Cited by 394 · see citing works
The maximum possible conversion efficiency of silicon-germanium thermoelectric generators
Slack, G. A., & Hussain, M. A. (1991) · Journal of Applied Physics · doi:10.1063/1.349385 · Cited by 383 · see citing works
Frequency dependence of the thermal conductivity of semiconductor alloys
Koh, Y. K., & Cahill, D. G. (2007) · Physical Review B · doi:10.1103/physrevb.76.075207 · Cited by 383 · see citing works
Vining, C. B. (1991) · Journal of Applied Physics · doi:10.1063/1.347717 · Cited by 323 · see citing works
Thermal conductivity of Si/SiGe and SiGe/SiGe superlattices
Huxtable, S. T., Abramson, A. R., Tien, C.-L., Majumdar, A., LaBounty, C., Fan, X., Zeng, G., Bowers, J. E., Shakouri, A., & Croke, E. T. (2002) · Applied Physics Letters · doi:10.1063/1.1455693 · Cited by 312 · see citing works
Thermal conductivity of symmetrically strained Si/Ge superlattices
Borca‐Tasciuc, T., Liu, W., Liu, J., Zeng, T., Song, D. W., Moore, C. D., Chen, G., Wang, K. L., Goorsky, M. S., Radetić, T., et al. (2000) · Superlattices and Microstructures · doi:10.1006/spmi.2000.0900 · Cited by 261 · see citing works
Thermal conductivity and heat transfer in superlattices
Chen, G., & Neagu, M. (1997) · Applied Physics Letters · doi:10.1063/1.120126 · Cited by 198 · see citing works
Hopkins, P. E., Serrano, J. R., Phinney, L. M., Kearney, S. P., Grasser, T. W., & Harris, C. T. (2010) · ASME Journal of Heat and Mass Transfer · doi:10.1115/1.4000993 · Cited by 192 · see citing works
Self-citationDiameter dependence of SiGe nanowire thermal conductivity
Wang, Z., & Mingo, N. (2010) · Applied Physics Letters · doi:10.1063/1.3486171 · Cited by 143 · see citing works
Effect of interfacial species mixing on phonon transport in semiconductor superlattices
Landry, E. S., & McGaughey, A. J. H. (2009) · Physical Review B · doi:10.1103/physrevb.79.075316 · Cited by 142 · see citing works
Tunable thermal conductivity of Si1−xGex nanowires
Chen, J., Zhang, G., & Li, B. (2009) · Applied Physics Letters · doi:10.1063/1.3212737 · Cited by 135 · see citing works
Computation of thermal conductivity of Si/Ge superlattices by molecular dynamics techniques
Volz, S. G., Saulnier, J.-B., Chen, G., & Beauchamp, P. (2000) · Microelectronics Journal · doi:10.1016/s0026-2692(00)00064-1 · Cited by 120 · see citing works
Interface thermal conductance and the thermal conductivity of multilayer thin films
Cahill, D. G., Bullen, A. J., & Lee, S. M. (2000) · High Temperatures-High Pressures · doi:10.1068/htwi9 · Cited by 99 · see citing works
Thermal conductivity in strain symmetrized Si/Ge superlattices on Si(111)
Chakraborty, S., Kleint, C., Heinrich, A., Schneider, C. M., Schumann, J., Falke, M., & Teichert, S. (2003) · Applied Physics Letters · doi:10.1063/1.1628819 · Cited by 85 · see citing works
Thermal conductivity of epitaxial layers of dilute SiGe alloys
Cahill, D. G., Watanabe, F., Rockett, A., & Vining, C. B. (2005) · Physical Review B · doi:10.1103/physrevb.71.235202 · Cited by 67 · see citing works
Thermal conductivity of Si/Ge superlattices: A realistic model with a diatomic unit cell
Kiselev, A. A., Kim, K. W., & Stroscio, M. A. (2000) · Physical review. B, Condensed matter · doi:10.1103/physrevb.62.6896 · Cited by 58 · see citing works
Thermal resistivity of Si–Ge alloys by molecular-dynamics simulation
Skye, A., & Schelling, P. K. (2008) · Journal of Applied Physics · doi:10.1063/1.2936868 · Cited by 57 · see citing works
Theoretical study of thermal properties for SiGe system
Kagaya, H. ‐., Kitani, Y., & Soma, T. (1986) · Solid State Communications · doi:10.1016/0038-1098(86)90814-8 · Cited by 9 · see citing works
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Thermoelectrics: From history, a window to the future
Beretta, D., Neophytou, N., Hodges, J. M., Kanatzidis, M. G., Narducci, D., Martín‐González, M., Beekman, M., Balke, B., Cerretti, G., Tremel, W., et al. (2018) · Materials Science and Engineering R Reports · doi:10.1016/j.mser.2018.09.001 · Cited by 610 · see citing works
Crossover from incoherent to coherent phonon scattering in epitaxial oxide superlattices
Ravichandran, J., Yadav, A. K., Cheaito, R., Rossen, P. B., Soukiassian, A., Suresha, S. J., Duda, J. C., Foley, B. M., Lee, C.-H., Zhu, Y., et al. (2014) · Nature Materials · doi:10.1038/nmat3826 · Cited by 514 · see citing works
Self-citationJiang, P., Qian, X., & Yang, R. (2018) · Journal of Applied Physics · doi:10.1063/1.5046944 · Cited by 424 · see citing works
Thermal Conductivity of Amorphous Materials
Zhou, W., Cheng, Y., Chen, K., Xie, G., Wang, T., & Zhang, G. (2019) · Advanced Functional Materials · doi:10.1002/adfm.201903829 · Cited by 325 · see citing works
Ihlefeld, J. F., Foley, B. M., Scrymgeour, D. A., Michael, J. R., McKenzie, B. B., Medlin, D. L., Wallace, M. L., Trolier-McKinstry, S. E., & Hopkins, P. E. (2015) · Nano Letters · doi:10.1021/nl504505t · Cited by 177 · see citing works
Self-citationSize effects on the thermal conductivity of amorphous silicon thin films
Braun, J. L., Baker, C. H., Giri, A., Elahi, M. M. M., Artyushkova, K., Beechem, T. E., Norris, P. M., Leseman, Z. C., Gaskins, J. T., & Hopkins, P. E. (2016) · Physical review. B./Physical review. B · doi:10.1103/physrevb.93.140201 · Cited by 137 · see citing works
Self-citationPhonon scattering in strained transition layers for GaN heteroepitaxy
Cho, J., Li, Y., Hoke, W. E., Altman, D. H., Asheghi, M., & Goodson, K. E. (2014) · Physical Review B · doi:10.1103/physrevb.89.115301 · Cited by 128 · see citing works
Advances in the measurement and computation of thermal phonon transport properties
Minnich, A. J. (2015) · Journal of Physics Condensed Matter · doi:10.1088/0953-8984/27/5/053202 · Cited by 121 · see citing works
Electron and phonon thermal conductivity in high entropy carbides with variable carbon content
Rost, C. M., Borman, T. M., Hossain, M. D., Lim, M., Quiambao-Tomko, K. F., Tomko, J. A., Brenner, D. W., Maria, J., & Hopkins, P. E. (2020) · Acta Materialia · doi:10.1016/j.actamat.2020.06.005 · Cited by 112 · see citing works
Self-citationUltra-low thermal conductivities in large-area Si-Ge nanomeshes for thermoelectric applications
Pérez, J., Rojo, M. M., Maiz, J., Neophytou, N., & Martín‐González, M. (2016) · Scientific Reports · doi:10.1038/srep32778 · Cited by 108 · see citing works
Chen, P., Katcho, N. A., Feser, J. P., Li, W., Glaser, M., Schmidt, O. G., Cahill, D. G., Mingo, N., & Rastelli, A. (2013) · Physical Review Letters · doi:10.1103/physrevlett.111.115901 · Cited by 107 · see citing works
Sub-amorphous Thermal Conductivity in Ultrathin Crystalline Silicon Nanotubes
Wingert, M. C., Kwon, S., Hu, M., Dimos Poulikakos, A., Xiang, J., & Chen, R. (2015) · Nano Letters · doi:10.1021/acs.nanolett.5b00167 · Cited by 106 · see citing works
Thermal Transport in Disordered Materials
DeAngelis, F., Muraleedharan, M. G., Moon, J., Seyf, H. R., Minnich, A. J., McGaughey, A. J. H., & Henry, A. S. (2018) · Nanoscale and Microscale Thermophysical Engineering · doi:10.1080/15567265.2018.1519004 · Cited by 104 · see citing works
Akšamija, Z., & Knežević, I. (2013) · Physical Review B · doi:10.1103/physrevb.88.155318 · Cited by 96 · see citing works
Zhu, J., Wu, X., Lattery, D. M., Zheng, W., & Wang, X. (2017) · Nanoscale and Microscale Thermophysical Engineering · doi:10.1080/15567265.2017.1313343 · Cited by 91 · see citing works
OLSON, D. H. L., Braun, J. L., & Hopkins, P. E. (2019) · Journal of Applied Physics · doi:10.1063/1.5120310 · Cited by 90 · see citing works
Self-citationThermal transport in organic semiconducting polymers
Duda, J. C., Hopkins, P. E., Shen, Y., & Gupta, M. C. (2013) · Applied Physics Letters · doi:10.1063/1.4812234 · Cited by 89 · see citing works
Self-citationLarkin, J. M., & McGaughey, A. J. H. (2013) · Journal of Applied Physics · doi:10.1063/1.4812737 · Cited by 86 · see citing works
Gorham, C. S., Gaskins, J. T., Parsons, G. N., Losego, M. D., & Hopkins, P. E. (2014) · Applied Physics Letters · doi:10.1063/1.4885415 · Cited by 85 · see citing works
Self-citationInfluence of interfacial properties on thermal transport at gold:silicon contacts
Duda, J. C., Yang, C.-Y. P., Foley, B. M., Cheaito, R., Medlin, D. L., Jones, R. E., & Hopkins, P. E. (2013) · Applied Physics Letters · doi:10.1063/1.4793431 · Cited by 82 · see citing works
Self-citationHopkins, P. E., Adamo, C., Ye, L., Huey, B. D., Lee, S. R., Schlom, D. G., & Ihlefeld, J. F. (2013) · Applied Physics Letters · doi:10.1063/1.4798497 · Cited by 76 · see citing works
Self-citationLattice Thermal Conductivity of the Binary and Ternary Group-IV Alloys Si-Sn, Ge-Sn, and Si-Ge-Sn
Khatami, S. N., & Akšamija, Z. (2016) · Physical Review Applied · doi:10.1103/physrevapplied.6.014015 · Cited by 76 · see citing works
Green's function studies of phonon transport across Si/Ge superlattices
Tian, Z., Esfarjani, K., & Chen, G. (2014) · Physical Review B · doi:10.1103/physrevb.89.235307 · Cited by 69 · see citing works
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., et al. (2014) · Physical Review B · doi:10.1103/physrevb.90.024301 · Cited by 70 · see citing works
Self-citationImpact of Phonon Surface Scattering on Thermal Energy Distribution of Si and SiGe Nanowires
Malhotra, A., & Maldovan, M. (2016) · Scientific Reports · doi:10.1038/srep25818 · Cited by 68 · see citing works
Cheaito, R., Polanco, C. A., Addamane, S., Zhang, J., Ghosh, A. W., Balakrishnan, G., & Hopkins, P. E. (2018) · Physical Review B · doi:10.1103/physrevb.97.085306 · Cited by 67 · see citing works
Self-citationWang, L., Cheaito, R., Braun, J. L., Giri, A., & Hopkins, P. E. (2016) · Review of Scientific Instruments · doi:10.1063/1.4962711 · Cited by 63 · see citing works
Self-citationScott, E. A., Hattar, K., Rost, C. M., Gaskins, J. T., Fazli, M., Ganski, C., Li, C., Bai, T., Wang, Y., Esfarjani, K., et al. (2018) · Physical Review Materials · doi:10.1103/physrevmaterials.2.095001 · Cited by 56 · see citing works
Self-citationTuning phonon transport spectrum for better thermoelectric materials
Hori, T., & Shiomi, J. (2018) · Science and Technology of Advanced Materials · doi:10.1080/14686996.2018.1548884 · Cited by 56 · see citing works
Nomura, M., Kage, Y., Müller, D. C., Moser, D., & Paul, O. (2015) · Applied Physics Letters · doi:10.1063/1.4922198 · Cited by 58 · see citing works
Tuning Phonon Transport: From Interfaces to Nanostructures
Norris, P. M., Le, N. Q., & Baker, C. H. (2013) · ASME Journal of Heat and Mass Transfer · doi:10.1115/1.4023584 · Cited by 52 · see citing works
Wang, J., Wang, Y., Ihlefeld, J. F., Hopkins, P. E., & Chen, L. (2016) · Acta Materialia · doi:10.1016/j.actamat.2016.03.069 · Cited by 51 · see citing works
Self-citationDeCoster, M. E., Babaei, H., Jung, S., Hassan, Z. M., Gaskins, J. T., Giri, A., Tiernan, E. M., Tomko, J. A., Baumgart, H., Norris, P. M., et al. (2022) · Journal of the American Chemical Society · doi:10.1021/jacs.1c12545 · Cited by 49 · see citing works
Self-citationA brief review on the recent development of phonon engineering and manipulation at nanoscales
Xie, S., Zhu, H., Zhang, X., & Wang, H. (2023) · International Journal of Extreme Manufacturing · doi:10.1088/2631-7990/acfd68 · Cited by 48 · see citing works
Enhanced in-plane thermoelectric figure of merit in p-type SiGe thin films by nanograin boundaries
Lu, J., Guo, R., Dai, W., & Huang, B. (2015) · Nanoscale · doi:10.1039/c5nr00181a · Cited by 44 · see citing works
Thermal conduction in lattice–matched superlattices of InGaAs/InAlAs
Sood, A., Rowlette, J. A., Caneau, C. G., Bozorg-Grayeli, E., Asheghi, M., & Goodson, K. E. (2014) · Applied Physics Letters · doi:10.1063/1.4892575 · Cited by 44 · see citing works
Giant Thermal Transport Tuning at a Metal/Ferroelectric Interface
Zang, Y., Chen, D., Geng, Z., Yan, X., Ji, D., Zheng, N., Jiang, X., Fu, H., Wang, J., Guo, W., et al. (2021) · Advanced Materials · doi:10.1002/adma.202105778 · Cited by 43 · see citing works
Thermal transport in Si and Ge nanostructures in the ‘confinement’ regime
Kwon, S., Wingert, M. C., Zheng, J., Xiang, J., & Chen, R. (2016) · Nanoscale · doi:10.1039/c6nr03634a · Cited by 43 · see citing works
Koh, Y. R., Hoque, M. S. B., Ahmad, H., OLSON, D. H. L., Liu, Z., Shi, J., Wang, Y., Huynh, K., Hoglund, E. R., Aryana, K., et al. (2021) · Physical Review Materials · doi:10.1103/physrevmaterials.5.104604 · Cited by 41 · see citing works
Self-citationLattice thermal conductivity of monolayer AsP from first-principles molecular dynamics
Sun, Y., Shuai, Z., & Wang, D. (2018) · Physical Chemistry Chemical Physics · doi:10.1039/c8cp01840e · Cited by 41 · see citing works
Silicon-based nanostructures for integrated thermoelectric generators
Gadea, G., Pacios, M., Morata, À., & Tarancón, A. (2018) · Journal of Physics D Applied Physics · doi:10.1088/1361-6463/aad683 · Cited by 40 · see citing works
A molecular dynamics investigation of heat transfer across a disordered thin film
Shao, C., & Bao, H. (2015) · International Journal of Heat and Mass Transfer · doi:10.1016/j.ijheatmasstransfer.2015.01.094 · Cited by 39 · see citing works
Kerdsongpanya, S., Hellman, O., Sun, B., Koh, Y. K., Lu, J., Nong, N. V., Simak, S. I., Alling, B., & Eklund, P. (2017) · Physical review. B./Physical review. B · doi:10.1103/physrevb.96.195417 · Cited by 39 · see citing works
Tailoring thermal conductivity by engineering compositional gradients in Si1−x Ge x superlattices
Ferrando-Villalba, P., Lopeandía, A. F., Álvarez, F. X., Paul, B., de Tomás, C., Alonso, M. I., Garriga, M., Goñi, A. R., Santiso, J., Garcia, G., et al. (2015) · Nano Research · doi:10.1007/s12274-015-0788-9 · Cited by 38 · see citing works
Liang, X. M. (2017) · Physical review. B./Physical review. B · doi:10.1103/physrevb.95.155313 · Cited by 37 · see citing works
DeCoster, M. E., Chen, X., Zhang, K., Rost, C. M., Hoglund, E. R., Howe, J. M., Beechem, T. E., Baumgart, H., & Hopkins, P. E. (2019) · Advanced Functional Materials · doi:10.1002/adfm.201904073 · Cited by 37 · see citing works
Self-citationPérez, J., Romero, J. J., Mayor, B. A., Rojo, M. M., Mello, A., Briones, F., & Martín‐González, M. (2016) · Nanotechnology · doi:10.1088/0957-4484/27/17/175401 · Cited by 36 · see citing works
Thermoelectric Inorganic SiGe Film Synthesized on Flexible Plastic Substrate
Kusano, K., Yamamoto, A., Nakata, M., Suemasu, T., & Toko, K. (2018) · ACS Applied Energy Materials · doi:10.1021/acsaem.8b00899 · Cited by 36 · see citing works
Giri, A., Donovan, B., & Hopkins, P. E. (2018) · Physical Review Materials · doi:10.1103/physrevmaterials.2.056002 · Cited by 35 · see citing works
Self-citationWarzoha, R. J., Vu, N. T., Donovan, B., Cimpoiasu, E., Sharar, D. J., Leff, A. C., Wilson, A. A., & Smith, A. N. (2020) · International Journal of Heat and Mass Transfer · doi:10.1016/j.ijheatmasstransfer.2020.119760 · Cited by 35 · see citing works
Characterization of self-heating in high-mobility Ge FinFET pMOS devices
Bury, E., Kaczer, B., Mitard, J., Collaert, N., Khatami, N. S., Akšamija, Z., Vasileska, D., Raleva, K., Witters, L. J., Hellings, G., et al. (2015) · Symposium on VLSI Technology · doi:10.1109/vlsit.2015.7223703 · Cited by 34 · see citing works
Surface scattering controlled heat conduction in semiconductor thin films
Malhotra, A., & Maldovan, M. (2016) · Journal of Applied Physics · doi:10.1063/1.4968542 · Cited by 33 · see citing works
Broadband optical phonon scattering reduces the thermal conductivity of multi-cation oxides
Riffe, W. T., Zare, S., Ardrey, K. D., Champagne, V. K., Milich, M., Lee, K., Jassas, M., Makarem, S., Opila, E. J., Clarke, D. R., et al. (2025) · Nature Communications · doi:10.1038/s41467-025-58345-w · Cited by 30 · see citing works
Self-citationCleri, A. J., Tomko, J. A., Quiambao-Tomko, K. F., Imperatore, M. V., Zhu, Y., Nolen, J. R., Nordlander, J., Caldwell, J. D., Mao, Z. Q., Giebink, N. C., et al. (2021) · Physical Review Materials · doi:10.1103/physrevmaterials.5.035202 · Cited by 29 · see citing works
Self-citationEngineering Heat Transport Across Epitaxial Lattice-Mismatched van der Waals Heterointerfaces
Chávez‐Ángel, E., Tsipas, P., Xiao, P., Ahmadi, M. T., Daaoub, A., Sadeghi, H., Torres, C. M. S., Dimoulas, A., & Sachat, A. E. (2023) · Nano Letters · doi:10.1021/acs.nanolett.3c01280 · Cited by 28 · see citing works
Thermal conduction in Si and SiGe phononic crystals explained by phonon mean free path spectrum
Nomura, M., Nakagawa, J., Sawano, K., Maire, J. K., & Volz, S. G. (2016) · Applied Physics Letters · doi:10.1063/1.4966190 · Cited by 27 · see citing works
Chung, C.-C., Lin, H.-C., Khairunizam, W., Yang, M.-F., & Liu, C. W. (2019) · IEEE Transactions on Electron Devices · doi:10.1109/ted.2019.2912426 · Cited by 27 · see citing works
Mala, S. A., Tsybeskov, L., Lockwood, D. J., Wu, X. L., & Baribeau, J. ‐. (2014) · Journal of Applied Physics · doi:10.1063/1.4886598 · Cited by 27 · see citing works
Scott, E. A., Smith, S. W., Henry, M. D., Rost, C. M., Giri, A., Gaskins, J. T., Fields, S. S., Jaszewski, S. T., Ihlefeld, J. F., & Hopkins, P. E. (2018) · Applied Physics Letters · doi:10.1063/1.5052244 · Cited by 27 · see citing works
Self-citationKasprowicz, D., Głuchowski, P., Brik, M. G., Makowski, M., Chrunik, M., & Majchrowski, A. (2016) · Journal of Alloys and Compounds · doi:10.1016/j.jallcom.2016.05.136 · Cited by 26 · see citing works
Gaskins, J. T., Bulusu, A., Giordano, A. J., Duda, J. C., Graham, S. L., & Hopkins, P. E. (2015) · The Journal of Physical Chemistry C · doi:10.1021/acs.jpcc.5b05462 · Cited by 26 · see citing works
Self-citationSaleh, M., Bayoumi, A. M., & Abdelhamid, H. (2023) · IEEE Transactions on Electron Devices · doi:10.1109/ted.2023.3318554 · Cited by 25 · see citing works
Nanograin-enhanced in-plane thermoelectric figure of merit in n-type SiGe thin films
Lu, J., Guo, R., & Huang, B. (2016) · Applied Physics Letters · doi:10.1063/1.4945328 · Cited by 24 · see citing works
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Pfeifer, T. W., Tomko, J. A., Hoglund, E. R., Scott, E. A., Hattar, K., Huynh, K., Liao, M. E., Goorsky, M. S., & Hopkins, P. E. (2022) · Journal of Applied Physics · doi:10.1063/5.0094876 · Cited by 23 · see citing works
Self-citationSpièce, J., Evangeli, C., Robson, A., Sachat, A. E., Haenel, L., Alonso, M. I., Garriga, M., Robinson, B. J., Oehme, M., Schulze, J., et al. (2021) · Nanoscale · doi:10.1039/d0nr08768h · Cited by 23 · see citing works
Thermal transport through Ge-rich Ge/Si superlattices grown on Ge(0 0 1)
Thumfart, L., Carrete, J., Vermeersch, B., Ye, N., Truglas, T., Feser, J. P., Groiß, H., Mingo, N., & Rastelli, A. (2017) · Journal of Physics D Applied Physics · doi:10.1088/1361-6463/aa98c5 · Cited by 22 · see citing works
Kusano, K., Tsuji, M., Suemasu, T., & Toko, K. (2019) · Applied Physics Express · doi:10.7567/1882-0786/ab0ed2 · Cited by 22 · see citing works
Tuning Electrical, Optical, and Thermal Properties through Cation Disorder in Cu2ZnSnS4
Ye, K., Siah, S. C., Erslev, P. T., Akey, A. J., Settens, C. M., Hoque, M. S. B., Braun, J. L., Hopkins, P. E., Teeter, G. R., Buonassisi, T., et al. (2019) · Chemistry of Materials · doi:10.1021/acs.chemmater.9b02287 · Cited by 21 · see citing works
Self-citationAlloy enhanced anisotropy in the thermal conductivity of SixGe1−x nanowires
Li, W., & Mingo, N. (2013) · Journal of Applied Physics · doi:10.1063/1.4817523 · Cited by 21 · see citing works
Phonon heat conduction in Al1-xScxN thin films
Yuan, C., Park, M., Zheng, Y., Shi, J., Dargis, R., Graham, S. L., & Ansari, A. (2021) · Materials Today Physics · doi:10.1016/j.mtphys.2021.100498 · Cited by 21 · see citing works
Self-Heating Mitigation of TreeFETs by Interbridges
Tsen, C.-J., Chung, C.-C., & Liu, C. W. (2022) · IEEE Transactions on Electron Devices · doi:10.1109/ted.2022.3183967 · Cited by 20 · see citing works
High Thermoelectric Performance in Polycrystalline GeSiSn Ternary Alloy Thin Films
Maeda, S., Ishiyama, T., Nishida, T., Ozawa, T., Saitoh, N., Yoshizawa, N., Suemasu, T., & Toko, K. (2022) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.2c14785 · Cited by 20 · see citing works
Baker, C. H., & Norris, P. M. (2015) · Physical Review B · doi:10.1103/physrevb.91.180302 · Cited by 20 · see citing works
Engineering thermal transport in SiGe-based nanostructures for thermoelectric applications
Upadhyaya, M., Khatami, S. N., & Akšamija, Z. (2015) · Journal of materials research/Pratt's guide to venture capital sources · doi:10.1557/jmr.2015.202 · Cited by 20 · see citing works
Nanowires with dislocations for ultralow lattice thermal conductivity
Al-Ghalith, J., Ni, Y., & Dumitrică, T. (2016) · Physical Chemistry Chemical Physics · doi:10.1039/c6cp00630b · Cited by 19 · see citing works
Foley, B. M., Paisley, E. A., DiAntonio, C. B., Chavez, T. P., Blea‐Kirby, M. A., Brennecka, G. L., Gaskins, J. T., Ihlefeld, J. F., & Hopkins, P. E. (2017) · Journal of Applied Physics · doi:10.1063/1.4983356 · Cited by 19 · see citing works
Self-citationSouto, J., Pura, J. L., & Jiménez, J. (2016) · Laser Physics Letters · doi:10.1088/1612-2011/13/2/025005 · Cited by 19 · see citing works
Chung, C.-C., Ye, H.-Y., Lin, H.-C., Wan, W. K., Yang, M.-F., & Liu, C. W. (2019) · IEEE Electron Device Letters · doi:10.1109/led.2019.2945474 · Cited by 19 · see citing works
Experimental Evidence of Superdiffusive Thermal Transport in Si0.4Ge0.6 Thin Films
Yao, F., Xia, S., Wei, H., Zheng, J., Yuan, Z., Wang, Y., Huang, B., Li, D., Lü, H., & Xu, D. (2022) · Nano Letters · doi:10.1021/acs.nanolett.2c01050 · Cited by 18 · see citing works
Characterization of individual charge fluctuators in Si/SiGe quantum dots
Ye, F., Ellaboudy, A. A., Albrecht, D., Vudatha, R., Jacobson, N. T., & Nichol, J. M. (2024) · Physical review. B./Physical review. B · doi:10.1103/physrevb.110.235305 · Cited by 18 · see citing works
Crystalline coherence length effects on the thermal conductivity of MgO thin films
Meyer, K., Cheaito, R., Paisley, E. A., Shelton, C. T., Braun, J. L., Maria, J., Ihlefeld, J. F., & Hopkins, P. E. (2016) · Journal of Materials Science · doi:10.1007/s10853-016-0261-5 · Cited by 18 · see citing works
Self-citationIskandar, A., Khalil, A. A., Kazan, M., Kassem, W., & Volz, S. G. (2015) · Journal of Applied Physics · doi:10.1063/1.4915948 · Cited by 16 · see citing works
Significant reduction in the thermal conductivity of Si-substituted Fe2VAl epilayers
Kudo, K., Yamada, S., Chikada, J., Shimanuki, Y., Ishibe, T., Abo, S., Miyazaki, H., Nishino, Y., Nakamura, Y., & Hamaya, K. (2019) · Physical review. B./Physical review. B · doi:10.1103/physrevb.99.054201 · Cited by 16 · see citing works
Phonon ballistic transport and Anderson localization in Si1−xGex alloyed nanowires
Zhang, W., Guo, Y., Xiong, S., & Yi, H.-L. (2023) · Physical review. B./Physical review. B · doi:10.1103/physrevb.108.125436 · Cited by 15 · see citing works
Chen, L., Braun, J. L., Donovan, B. F., Hopkins, P. E., & Poon, S. J. (2017) · Applied Physics Letters · doi:10.1063/1.4986884 · Cited by 15 · see citing works
Self-citationUltra-low thermal conductivity of high-interface density Si/Ge amorphous multilayers
Goto, M., Xu, Y., Zhan, T., Sasaki, M., Nishimura, C., Kinoshita, Y., & Ishikiriyama, M. (2018) · Applied Physics Express · doi:10.7567/apex.11.045202 · Cited by 15 · see citing works
Zn-induced layer exchange of p- and n-type nanocrystalline SiGe layers for flexible thermoelectrics
Tsuji, M., Kusano, K., Suemasu, T., & Toko, K. (2020) · Applied Physics Letters · doi:10.1063/5.0006958 · Cited by 15 · see citing works
Thermal transport in epitaxial Si1−xGexalloy nanowires with varying composition and morphology
Sachat, A. E., Reparaz, J. S., Spièce, J., Alonso, M. I., Goñi, A. R., Garriga, M., Vaccaro, P. O., Wagner, M. R., Kolosov, O., Torres, C. M. S., et al. (2017) · Nanotechnology · doi:10.1088/1361-6528/aa9497 · Cited by 15 · see citing works
Layer Exchange Synthesis of SiGe for Flexible Thermoelectric Generators: A Comprehensive Review
Toko, K., Maeda, S., Ishiyama, T., Nozawa, K., Murata, M., & Suemasu, T. (2024) · Advanced Electronic Materials · doi:10.1002/aelm.202400130 · Cited by 14 · see citing works
Ferrando-Villalba, P., Chen, S., Lopeandía, A. F., Álvarez, F. X., Alonso, M. I., Garriga, M., Santiso, J., Garcia, G., Goñi, A. R., Donadio, D., et al. (2020) · The Journal of Physical Chemistry C · doi:10.1021/acs.jpcc.0c06410 · Cited by 14 · see citing works
Thickness-dependent thermoelectric properties of Si1−xGex films formed by Al-induced layer exchange
Ozawa, T., Kusano, K., Murata, M., Yamamoto, A., Suemasu, T., & Toko, K. (2021) · Journal of Applied Physics · doi:10.1063/5.0025099 · Cited by 14 · see citing works
Ascencio-Hurtado, C. R., Ambrosio, R., Estrada-López, J. J., & Torres, A. J. (2023) · Eng—Advances in Engineering · doi:10.3390/eng4020082 · Cited by 13 · see citing works
Thin-film thermoelectric generator based on polycrystalline SiGe formed by Ag-induced layer exchange
Tsuji, M., Murata, M., Yamamoto, A., Suemasu, T., & Toko, K. (2020) · Applied Physics Letters · doi:10.1063/5.0021880 · Cited by 13 · see citing works
Universal effective medium theory to predict the thermal conductivity in nanostructured materials
Hosseini, S. A., Khanniche, S., Greaney, P. A., & Romano, G. (2021) · International Journal of Heat and Mass Transfer · doi:10.1016/j.ijheatmasstransfer.2021.122040 · Cited by 13 · see citing works
Quasi continuous wave laser sintering of Si-Ge nanoparticles for thermoelectrics
Xie, K., Mork, K., Held, J. T., Mkhoyan, K. A., Kortshagen, U. R., & Gupta, M. C. (2018) · Journal of Applied Physics · doi:10.1063/1.5018337 · Cited by 13 · see citing works
Tsuji, M., Imajo, T., Saitoh, N., Yoshizawa, N., Suemasu, T., & Toko, K. (2019) · Journal of Physics D Applied Physics · doi:10.1088/1361-6463/ab5989 · Cited by 13 · see citing works
Atomic mass dependency of a localized phonon mode in SiGe alloys
Chung, S. Y. Y., Tomita, M., Yokogawa, R., Ogura, A., & Watanabe, T. (2021) · AIP Advances · doi:10.1063/5.0071699 · Cited by 13 · see citing works
Flexible Thermoelectric Generator Based on Polycrystalline SiGe Thin Films
Ozawa, T., Murata, M., Suemasu, T., & Toko, K. (2022) · Materials · doi:10.3390/ma15020608 · Cited by 13 · see citing works
DAS, D. K., Mallick, A., & Singh, S. K. (2021) · Mechanics of Advanced Materials and Structures · doi:10.1080/15376494.2020.1852347 · Cited by 11 · see citing works
Reduced thermal conductivity in Er-doped epitaxial InxGa1−xSb alloys
Feser, J. P., Xu, D., Lü, H., Zhao, Y., Shakouri, A., Gossard, A. C., & Majumdar, A. (2013) · Applied Physics Letters · doi:10.1063/1.4820151 · Cited by 11 · see citing works
- Authors
- Cheaito, R., 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.
- Affiliations
- University of Virginia (US)
- Sandia National Laboratories (US)
- Sandia National Laboratories California (US)
- ORCID
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2012-11-08
- Volume
- 109
- Issue
- 19
- Pages
- 195901-195901
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2017999182
- Cited by
- 175
- References
- 30
- Citations by year
- 2026: 7 · 2025: 8 · 2024: 12 · 2023: 10 · 2022: 9 · 2021: 18 · 2020: 7 · 2019: 15 · 2018: 21 · 2017: 10 · 2016: 18 · 2015: 18 · 2014: 10 · 2013: 12
- FWCI
- 5.89
- Type
- journal article
- Language
- en
- Open access
- green
- orcid.org
- Licence
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
- OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
- Funders
- U.S. Department of Energy
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Thermal properties of materials
- Physical Sciences › Materials Science › Materials Chemistry › Advanced Thermoelectric Materials and Devices
- Physical Sciences › Engineering › Civil and Structural Engineering › Thermal Radiation and Cooling Technologies
- Keywords
- silicon-germanium alloys, thin films, thermal conductivity, size effect, boundary scattering, phonon scattering, long-wavelength phonons, epitaxial growth, superlattices, film thickness dependence, sample size effects, nanoscale heat transfer
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