Unidirectional radiative heat transfer with a spectrally selective planar absorber/emitter for high-efficiency solar thermophotovoltaic systems

被引：76
|
作者：
Kohiyama, Asaka [1 ]
Shimizu, Makoto [1 ,2 ]
Yugami, Hiroo [1 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Sendai, Miyagi 9808579, Japan
[2] Univ Lyon 1, CNRS, INSA Lyon, CETHIL UMR 5008, F-69621 Villeurbanne, France
来源：
APPLIED PHYSICS EXPRESS | 2016年 / 9卷 / 11期
关键词：
DESIGN;
D O I：
10.7567/APEX.9.112302
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A high-efficiency solar thermophotovoltaic (STPV) system has been demonstrated using spectrally selective planar absorber/emitter systems and a GaSb TPV cell. In this study, a novel approach for designing the STPV system based on the efficiency of unidirectional radiative heat transfer has been introduced. To achieve high extraction and photovoltaic conversion efficiencies, the spectrally selective absorber/emitter based on a coherent perfect absorber composed of a thin molybdenum layer sandwiched between hafnium layers was applied. The extraction efficiency was further investigated with respect to the absorber/emitter area ratio. The experimental efficiency of STPV reached 5.1% with the area ratio of 2.3. (C) 2016 The Japan Society of Applied Physics
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页数：4
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