Simulation Investigation of High-Efficiency Solar Thermoelectric Generators With Inhomogeneously Doped Nanomaterials

被引：21

作者：

Su, Shanhe ^{[1
,2
]}

Chen, Jincan ^{[1
,2
]}

机构：

[1] Xiamen Univ, Fujian Key Lab Semicond Mat & Applicat, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2015年 / 62卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Inhomogeneous doping; nanomaterial; narrow band width; optimum design; solar thermoelectric generator (STEG); PERFORMANCE; SYSTEM;

D O I：

10.1109/TIE.2014.2371433

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

By introducing an inhomogeneously doped nanostructure thermoelectric generator (TEG) with a delta-like electronic density of states (DOS), a novel model of the solar TEG (STEG) with high conversion efficiencies is established. The STEG is composed of a flat-panel collector without optical concentration, but with thermal concentration, and a TEG in a vacuum enclosure. Reversible electron transport is achieved by designing quantum-confined electrons in thermoelectric materials. The maximum efficiency calculated herein is much larger than that previously reported. Influences of the current density, thermal conductivity, and energy band width of the electronic DOS on the performance are revealed. The optimization problems of the system are discussed. Results show that the STEG made of nanostructure materials, permitting the electron transport to approach energy-specific equilibrium, possesses great potential to increase solar energy conversion efficiencies.

引用

页码：3569 / 3575

页数：7

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