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Gehong Zeng
Researcher at University of California, Santa Barbara
Publications - 56
Citations - 2389
Gehong Zeng is an academic researcher from University of California, Santa Barbara. The author has contributed to research in topics: Thermoelectric effect & Thermoelectric materials. The author has an hindex of 24, co-authored 56 publications receiving 2323 citations.
Papers
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Journal ArticleDOI
Demonstration of electron filtering to increase the Seebeck coefficient in In 0.53 Ga 0.47 As ∕ In 0.53 Ga 0.28 Al 0.19 As superlattices
Joshua M. O. Zide,Daryoosh Vashaee,Zhixi Bian,Gehong Zeng,John E. Bowers,Ali Shakouri,Arthur C. Gossard +6 more
TL;DR: In this paper, the authors explore electron filtering as a technique to increase the Seebeck coefficient and the thermoelectric power factor of heterostructured materials over that of the bulk.
Journal ArticleDOI
Thermal conductivity of Si/SiGe and SiGe/SiGe superlattices
Scott T. Huxtable,Alexis R. Abramson,Chang Lin Tien,Arun Majumdar,Chris LaBounty,Xiaofeng Fan,Gehong Zeng,John E. Bowers,Ali Shakouri,Edward T. Croke +9 more
TL;DR: In this paper, the crossplane thermal conductivity of four Si/Si0.7Ge0.3 superlattices and three Si0.16/Si 0.76Ge0, 0.84Ge 0.24 samples, with periods ranging from 45 to 300 and from 100 to 200 A, respectively, were measured over a temperature range of 50 to 320 K.
Journal ArticleDOI
SiGeC/Si superlattice microcoolers
Xiaofeng Fan,Gehong Zeng,Chris LaBounty,John E. Bowers,Edward T. Croke,Channing C. Ahn,Scott T. Huxtable,Arun Majumdar,Ali Shakouri +8 more
TL;DR: SiGeC/Si superlattice microcoolers with dimensions as small as 40×40 µm^2 were fabricated and characterized in this article, where they were grown on Si substrates by molecular beam epitaxy and thermal conductivity was measured by the 3omega method.
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Thermoelectric power factor in semiconductors with buried epitaxial semimetallic nanoparticles
Joshua M. O. Zide,Dmitri O. Klenov,Susanne Stemmer,Arthur C. Gossard,Gehong Zeng,John E. Bowers,Daryoosh Vashaee,Ali Shakouri +7 more
TL;DR: In this article, composite epitaxial materials that consist of semimetallic ErAs nanoparticles embedded in a semiconducting In0.53Ga0.47As matrix were grown as superlattices and randomly distributed throughout the matrix.
Journal ArticleDOI
Effect of nanoparticle scattering on thermoelectric power factor
Mona Zebarjadi,Keivan Esfarjani,Ali Shakouri,Je-Hyeong Bahk,Zhixi Bian,Gehong Zeng,John E. Bowers,Hong Lu,Joshua M. O. Zide,Arthur C. Gossard +9 more
TL;DR: In this article, the effect of nanoparticles on the thermoelectric power factor was investigated using the relaxation time approximation, and the partial-wave technique was used for calculating the nanoparticle scattering cross section exactly.