SiGe alloys represent an important type of high-temperature semiconductor material for solid-state energy conversion. In the present study, the near-field radiative heat transfer between heavily doped SiGe plates is investigated. A dielectric function model is formulated based on the previously reported room-temperature mobility and temperature-dependent electric resistivity of several silicon-rich alloys with different doping type and concentration. The fluctuational electrodynamics is used to evaluate the near-field noncontact heat transfer coefficient. The variation of the heat transfer coefficient with doping concentration and temperature is explained according to the change in the optical constants and in the spectral distribution of the near-field heat flux.
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ASME 2011 International Mechanical Engineering Congress and Exposition
November 11–17, 2011
Denver, Colorado, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5496-9
PROCEEDINGS PAPER
Near-Field Radiative Transfer Between Heavily Doped SiGe at Elevated Temperatures
Z. M. Zhang
,
Z. M. Zhang
Georgia Institute of Technology, Atlanta, GA
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E. T. Enikov
,
E. T. Enikov
University of Arizona, Tucson, AZ
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T. Makansi
T. Makansi
Tempronics, Inc., Tucson, AZ
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Z. M. Zhang
Georgia Institute of Technology, Atlanta, GA
E. T. Enikov
University of Arizona, Tucson, AZ
T. Makansi
Tempronics, Inc., Tucson, AZ
Paper No:
IMECE2011-62341, pp. 283-291; 9 pages
Published Online:
August 1, 2012
Citation
Zhang, ZM, Enikov, ET, & Makansi, T. "Near-Field Radiative Transfer Between Heavily Doped SiGe at Elevated Temperatures." Proceedings of the ASME 2011 International Mechanical Engineering Congress and Exposition. Volume 10: Heat and Mass Transport Processes, Parts A and B. Denver, Colorado, USA. November 11–17, 2011. pp. 283-291. ASME. https://doi.org/10.1115/IMECE2011-62341
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