Spectrally selective, matched emitters for thermophotovoltaic energy conversion processed by tape casting

被引:22
作者
Ferguson, LG [1 ]
Dogan, F [1 ]
机构
[1] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
关键词
Ceramic matrix composites - Light emission - Magnesia - Optical filters - Semiconducting gallium compounds - Thermoelectric energy conversion;
D O I
10.1023/A:1004845205322
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The thermophotovoltaic (TPV) generator converts radiant energy from a high temperature emitter element into electric power using infrared responding photovoltaic cells. Spectral control is a primary issue in TPV applications. Conventional TPV generators have relied on filters to achieve selectivity and spectral control with near-blackbody ceramic emitters. Several practical problems have limited the success of this approach, particularly the present lack of a satisfactory wide-band infrared filter. A new, spectrally selective emitter is described in this work, and will be called the "bandgap matched" emitter because its emissive power spectrum is very efficiently matched with the infrared response of the GaSb photovoltaic cell. The superior spectral efficiency has been achieved with a novel combination of spectrally active, transition metal dopants within an infrared-transparent magnesium oxide ceramic matrix. High mechanical integrity, thermal shock resistance, excellent heat transfer characteristics, and near-ideal spectral efficiency have been achieved by fabricating composite Co- or Ni-doped MgO from thin ceramic ribbons made by the tape casting process. (C) 2001 Kluwer Academic Publishers.
引用
收藏
页码:137 / 146
页数:10
相关论文
共 30 条
[1]  
ADAIR PL, 1995, AIP CONF PROC, P245, DOI 10.1063/1.47028
[2]  
BROMAN L, 1995, AIP C P, V321, P133
[3]  
Chen Z, 1997, AIP CONF PROC, P181
[4]   THIN-FILM SELECTIVE EMITTER [J].
CHUBB, DL ;
LOWE, RA .
JOURNAL OF APPLIED PHYSICS, 1993, 74 (09) :5687-5696
[5]  
Chubb DL, 1996, AIP CONF PROC, P181
[6]  
CHUBB DL, 1997, AIP C P, V401, P283
[7]  
Cody GD, 1999, AIP CONF PROC, V460, P58, DOI 10.1063/1.57845
[8]   Thermophotovoltaics [J].
Coutts, TJ ;
Fitzgerald, MC .
SCIENTIFIC AMERICAN, 1998, 279 (03) :90-95
[9]  
DeBellis CL, 1999, AIP CONF PROC, V460, P362, DOI 10.1063/1.57816
[10]   Effects of solvent mixtures on dispersion of lanthanum-modified lead zirconate titanate tape casting slurries [J].
Feng, JH ;
Dogan, F .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2000, 83 (07) :1681-1686