Device simulation and modeling of microcrystalline silicon solar cells

被引:9
作者
Takakura, H [1 ]
Hamakawa, Y [1 ]
机构
[1] Ritsumeikan Univ, Fac Sci & Engn, Dept Photon, Shiga 5258577, Japan
基金
日本学术振兴会;
关键词
device simulation; microcrystalline Si solar cell; grain boundary; amorphous silicon; tandem solar cell; bottom cell; recombination loss; optimum design;
D O I
10.1016/S0927-0248(02)00108-3
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
Device modeling for p-i-n junction basis thin film microcrystalline Si solar cells has been examined with a simple model of columnar grain structure utilizing two-dimensional device simulator. The simulation results of solar cell characteristics show that open-circuit voltage (V-oc) and fill factor considerably depend on structural parameters such as grain size and acceptor doping in intrinsic layer, while short-circuit current density (J(sc)) is comparatively stable by built-in electric field in the i-layer. It is also found that conversion efficiency of more than 16% could be expected with 1 mum grain size and well-passivated condition with 10 mum thick i-layer and optical confinement. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:479 / 487
页数:9
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