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Issue 1, 2012
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Enhancement of thermoelectric figure-of-merit by resonant states of aluminium doping in lead selenide

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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.

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

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Article information


Submitted
24 Aug 2011
Accepted
25 Oct 2011
First published
11 Nov 2011

Energy Environ. Sci., 2012,5, 5246-5251
Article type
Communication

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

Q. Zhang, H. Wang, W. Liu, H. Wang, B. Yu, Q. Zhang, Z. Tian, G. Ni, S. Lee, K. Esfarjani, G. Chen and Z. Ren, Energy Environ. Sci., 2012, 5, 5246
DOI: 10.1039/C1EE02465E

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