Department of Mechanical Engineering
Stanford University
Principal Investigator
Kenneth E. Goodson
Energy Conversion in Nanostructures and NanoMaterials
Sponsors:
AFOSR, DOE The most innovative energy conversion technologies, ranging from solar and thermoelectrics to lasers (which convert electric energy to light), are benefitting from nanostructures and/or nanostructured materials. Thermal phenomena play a central role in the performance and reliability of devices based on these technologies, and we are collaborating with multiple groups on the characterization of related transport physics and properties.
Recent progress has addressed thermal phenomena in quantum well laser nanostructures, in which electron confinement enables efficient optical devices in silicon for compatibility with conventional IC circuits. Power absorption in these nanostructures strongly degrades their power emission capabilities and motivates our recent measurements of thermal and optical properties. Additional work is focused on the thermal and thermoelectric properties of nanowires and nanowire films, with a focus on those made from zinc oxide (ZnO) because of this material's broad range of applications including thermoelectrics and photovoltaics. This work determines the effective thermal conductivity in the direction normal to ZnO NW films using electrical and optical methods.
PROJECT PUBLICATIONS
Yee, S., Leblanc, S., Goodson, K.E., and Dames, C., 2013, "A $/W Metric for Thermoelectric Power Generation: Beyond ZT," Energy & Environmental Science, submitted.
Lee, J., Bozorg-Grayeli, E., Kim, S., Asheghi, M., Wong, H.-S., and Goodson, K.E., 2013, "Phonon and Electron Transport through Ge2Sb2Te5 Films and Interfaces Bounded by Metals," Applied Physics Letters, Vol. 102, 191911.
Marconnet, A.M., Asheghi, M., and Goodson, K.E., 2013, "From the Casimir Limit to Phononic Crystals: Twenty Years of Phonon Transport Studies using Silicon-on-Insulator Technology," Journal of Heat Transfer, invited for special anniversary issue, accepted and in press.
Weisse, J.M., Marconnet, A.M., Kim, D.R., Rao, P., Panzer, M.A., Goodson, K.E., Zheng, X., 2012, "Thermal conductivity in porous silicon nanowire arrays," Nanoscale Research Letters, Vol. 7, Article 554.
Li, Z., Jeyasingh, R.G.D., Lee, J., Asheghi, M., Wong, H.S.P., and Goodson, K.E., 2012, "Electrothermal Modeling and Design Strategies for Multibit Phase Change Memory," IEEE Transactions on Electron Devices, Vol. 59, pp. 3561-3567.
Leblanc, S., Swartzenruber, Marinez, J., Christoforo, G., Kodama, T., and Goodson, K.E., 2012, "Nanoscale Manipulation, Heating, and Welding of Nanowires," ASME Journal of Heat Transfer, Vol. 134, Article 080910-1.
LeBlanc, S., Phadke, S., Kodama, T., Salleo, A., and Goodson, K.E., 2012, "Electrothermal Phenomena in Zinc Oxide Nanowires and Contacts," Applied Physics Letters, Vol. 100, 163105.
Lee, J., Kim, S., Marconnet, A., in t' Zandt, M.A.A., Asheghi, M., Wong, H.S.P., and Goodson, K.E., 2012, "Thermoelectric Characterization and Power Generation using a Silicon-on-Insulator Substrate," Journal of MicroElectroMechanical Systems, Vol. 21, pp. 4-6.
Marconnet, A.M., Kodama, T., Asheghi, M., and Goodson, K.E., 2012, "Phonon Conduction in Periodically Porous Silicon Nanobridges," Nanoscale and Microscale Thermophysical Engineering, Vol. 16, No. 4, pp. 199-219.
Lee, J., Kodama, T., Won, Y., Asheghi, M., and Goodson, K.E., 2012, "Phase and Temperature Dependent Thermoelectric Properties of Ge2Sb2Te5 Films down to 25 nm Thickness," Journal of Applied Physics, Vol. 112, 014902.
.
Yoneoka, S., Lee, J., Liger, M., Yama, G., Kodama, T., Gunji, M., Provine, J., Howe, R.T., Goodson, K.E., and Kenny, T.W., 2012, "Electrical and Thermal Conduction in ALD Nanobridges Down to 7-nm Thickness," Nano Letters, Vol. 12, pp. 683-686.
Marconnet, A., Panzer, M., Yerci, S., Minissale, S., Wang, X., Zhang, X., Negro, L.D., and Goodson, K.E., 2012, "Thermal Conductivity and Photoluminescence of Light-Emitting Silicon Nitride Films," Applied Physics Letters, Vol. 100, 051908.
Lee, J., Asheghi, M., Goodson, K.E., 2012, "Impact of thermoelectric phenomena on phase-change memory performance metrics and scaling," Nanotechnology, Vol. 23, 205201.
Rowlette, J.A., Kekatpure, R.D., Panzer, M.A., Brongersma, M.L., and Goodson, K.E., 2009, "Nonradiative Recombination in Strongly Interacting Silicon Nanocrystals Embedded in Amorphous Silicon-Oxide Films," Physical Review B, Vol. 80, 045314.
Kodama, T., Jain, A., and Goodson K.E., 2009, "Heat Conduction through a DNA-Gold Composite," Nano Letters, Vol. 9, pp 2005-2009.
Chandorkar, S.A., Candler, R.N., Duwel, A., Melamud, R., Agarwal, M., Goodson, K.E., and Kenny, T. W., 2009, "MultiMode Thermoelastic Dissipation," Journal of Applied Physics, Vol. 105, 043505.
Jain, A., and Goodson, K.E., 2008, "Measurement of the Thermal Conductivity and Heat Capacity of Free-Standing Shape Memory Thin Films using the 3w Method," ASME Journal of Heat Transfer, Vol. 130, 102402.
Panzer, M.P., and Goodson, K.E., 2008, "Thermal Resistance Between Low-Dimensional Nanostructures and Semi-Infinite Media," Journal of Applied Physics, Vol. 103, pp. 094301.
Touzelbaev, M.N., Zhou, P., Venkatasubramanian, R., Goodson, K.E., 2001, "Thermal Characterization of Bi2Te3/Sb2Te3 Superlattices," Journal of Applied Physics, Vol. 90, pp. 763-767.
Goodson, K.E., and Flik, M.I., 1994, "Solid-Layer Thermal-Conductivity Measurement Techniques," Applied Mechanics Reviews, Vol. 47, pp. 101-112.
Flik, M.I., Choi, B.I., and Goodson, K.E., 1992, "Heat Transfer Regimes in Microstructures," ASME Journal of Heat Transfer, Vol. 114, pp. 666-674.