Enhancement of thermoelectric figure-of-merit by resonant states of aluminium doping in lead selenide
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Paper 1-Q. Y. Zhang_EES.pdf
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Author(s)
Zhang, Qinyong
Wang, Hui
Liu, Weishu
Wang, Hengzhi
Yu, Bo
Zhang, Qian
Tian, Zhiting
Lee, Sangyeop
Esfarjani, Keivan
Chen, Gang
Date Issued
November 2011
Journal
Energy & Environmental Science
Publisher
Royal Society of Chemistry
Citation
Zhang, Qinyong, Hui Wang, Weishu Liu, Hengzhi Wang, Bo Yu, Qian Zhang, Zhiting Tian, et al. “Enhancement of Thermoelectric Figure-of-Merit by Resonant States of Aluminium Doping in Lead Selenide.” Energy & Environmental Science 5, no. 1 (2012): 5246.
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Author's final manuscript
Abstract
By adding aluminium (Al) into lead selenide (PbSe), we successfully prepared n-type PbSe thermoelectric materials with a figure-of-merit (ZT) of 1.3 at 850 K. Such a high ZT is achieved by a combination of high Seebeck coefficient caused by very possibly the resonant states in the conduction band created by Al dopant and low thermal conductivity from nanosized phonon scattering centers.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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DOI of Published Version
https://doi.org/10.1039/c1ee02465e
