Enhancement of thermoelectric figure-of-merit by resonant states of aluminium doping in lead selenide

Author(s)
Zhang, Qinyong; Wang, Hui; Liu, Weishu; Wang, Hengzhi; Yu, Bo; ... Show more
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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.
Date issued
2011-11
URI
http://hdl.handle.net/1721.1/86905
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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.
Version: Author's final manuscript
ISSN
1754-5692
1754-5706
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