H
Hang Chi
Researcher at University of Michigan
Publications - 75
Citations - 6871
Hang Chi is an academic researcher from University of Michigan. The author has contributed to research in topics: Thermoelectric effect & Seebeck coefficient. The author has an hindex of 32, co-authored 71 publications receiving 5501 citations. Previous affiliations of Hang Chi include Brookhaven National Laboratory & Michigan State University.
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Journal ArticleDOI
Ultrahigh power factor and thermoelectric performance in hole-doped single-crystal SnSe
Li-Dong Zhao,Li-Dong Zhao,Gangjian Tan,Shiqiang Hao,Jiaqing He,Yanling Pei,Hang Chi,Heng Wang,Shengkai Gong,Huibin Xu,Vinayak P. Dravid,Ctirad Uher,G. Jeffrey Snyder,Chris Wolverton,Mercouri G. Kanatzidis +14 more
TL;DR: A record high ZTdev ∼1.34, with ZT ranging from 0.7 to 2.0 at 300 to 773 kelvin, realized in hole-doped tin selenide (SnSe) crystals, arises from the ultrahigh power factor, which comes from a high electrical conductivity and a strongly enhanced Seebeck coefficient enabled by the contribution of multiple electronic valence bands present in SnSe.
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Non-equilibrium processing leads to record high thermoelectric figure of merit in PbTe-SrTe.
Gangjian Tan,Fengyuan Shi,Shiqiang Hao,Li-Dong Zhao,Li-Dong Zhao,Hang Chi,Xiaomi Zhang,Ctirad Uher,Chris Wolverton,Vinayak P. Dravid,Mercouri G. Kanatzidis,Mercouri G. Kanatzidis +11 more
TL;DR: A thermoelectric figure of merit ZT of 2.5 at 923 K is demonstrated by the cumulative integration of several performance-enhancing concepts in a single material system using hole-doped PbTe–8%SrTe samples.
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High Performance Thermoelectricity in Earth-Abundant Compounds Based on Natural Mineral Tetrahedrites
TL;DR: In this article, the authors report dimensionless thermoelectric properties of tetrahedrites, the most widespread sulfosalts on Earth, and further show that the natural mineral itself can be used directly as an inexpensive source of energy.
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Ultrahigh Thermoelectric Performance by Electron and Phonon Critical Scattering in Cu2Se1‐xIx
Huili Liu,Xun Yuan,Ping Lu,Xun Shi,Fangfang Xu,Ying He,Tang Yunshan,Shengqiang Bai,Wenqing Zhang,Lidong Chen,Yue Lin,Lei Shi,He Lin,Xingyu Gao,Xingmin Zhang,Hang Chi,Ctirad Uher +16 more
TL;DR: Iodine-doped Cu2 Se shows a significantly improved thermoelectric performance during phase transitions by electron and phonon critical scattering, leading to a dramatic increase in zT by a factor of 3-7 times culminating in z t values of 2.3 at 400 K.
Journal ArticleDOI
Codoping in SnTe: Enhancement of Thermoelectric Performance through Synergy of Resonance Levels and Band Convergence
Gangjian Tan,Fengyuan Shi,Shiqiang Hao,Hang Chi,Li-Dong Zhao,Ctirad Uher,Chris Wolverton,Vinayak P. Dravid,Mercouri G. Kanatzidis +8 more
TL;DR: A significant enhancement of the thermoelectric performance of p-type SnTe over a broad temperature plateau with a peak ZT value of ∼1.4 at 923 K through In/Cd codoping and a CdS nanostructuring approach is reported.