Thermodynamic efficiency limits for semiconductor solar cells with carrier multiplication

被引：77
作者：
Brendel, R
Werner, JH
Queisser, HJ
机构：
[1] Max-Planck-Inst. Festkorperforschung, 70569 Stuttgart
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 1996年 / 41-2卷 / 41-42期
关键词：
D O I：
10.1016/0927-0248(95)00125-5
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Our recent quantum efficiency measurements showed that more than one electron/hole pair per absorbed photon can be created in a solar cell. Thermodynamic consideration of carrier multiplication leads to new efficiency limits for photovoltaic energy conversion. An efficiency of 43% is theoretically possible for cells which are illuminated by the sun's unconcentrated black body radiation. For sun light of full concentration, the new limit is 85%. These ideal values are thermodynamically possible with a single semiconductor which makes optimum use of carrier multiplication and shows radiative recombination only. The theoretical description of the thermodynamics of radiative recombination in a cell with carrier multiplication leads us also to a novel mathematical description of the saturation current density.
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收藏
页码：419 / 425
页数：7
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