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稳定最佳载流子浓度以实现高效率的热电转换。

Stabilizing the optimal carrier concentration for high thermoelectric efficiency.

机构信息

Department of Materials Science, California Institute of Technology, Pasadena, CA 91125, USA.

出版信息

Adv Mater. 2011 Dec 15;23(47):5674-8. doi: 10.1002/adma.201103153. Epub 2011 Nov 4.

DOI:10.1002/adma.201103153
PMID:22052689
Abstract

The band structure of PbTe can be manipulated by alloying with MgTe to control the band degeneracy. This is used to stabilize the optimal carrier concentration, making it less temperature dependent, demonstrating a new strategy to improve overall thermoelectric efficiency over a broad temperature range.

摘要

通过与 MgTe 合金化来控制能带简并度,可以操纵 PbTe 的能带结构。这用于稳定最佳载流子浓度,使其对温度的依赖性降低,展示了在较宽温度范围内提高整体热电效率的新策略。

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