Microcrystalline silicon and the impact on micromorph tandem solar cells

被引:100
作者
Meier, J [1 ]
Dubail, S [1 ]
Golay, S [1 ]
Kroll, U [1 ]
Faÿ, S [1 ]
Vallat-Sauvain, E [1 ]
Feitknecht, L [1 ]
Dubail, J [1 ]
Shah, A [1 ]
机构
[1] Univ Neuchatel, Inst Microtech, CH-2000 Neuchatel, Switzerland
关键词
hydrogenated microcrystalline silicon; thin-film silicon; VHF-GD; LP-CVD ZnO; light-trapping;
D O I
10.1016/S0927-0248(02)00111-3
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
Intrinsic microcrystalline silicon opens up new ways for silicon thin-film multi-junction solar cells, the most promising being the "micromorph" tandem concept. The microstructure of entirely microcrystalline p-i-n solar cells is investigated by transmission electron microscopy. By applying low pressure chemical vapor deposition ZnO as front TCO in p-i-n configurated micromorph tandems, a remarkable reduction of the microcrystalline bottom cell thickness is achieved. Micromorph tandem cells with high open circuit voltages of 1.413 V could be accomplished. A stabilized efficiency of around 11% is estimated for micromorph tandems consisting of 2 pm thick bottom cells. Applying the monolithic series connection, a micromorph module (23.3 cm(2)) of 9.1% stabilized efficiency could be obtained. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:457 / 467
页数:11
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