Losses due to polycrystallinity in thin-film solar cells

被引：62

作者：

Sites, JR ^{[1
]}

Granata, JE ^{[1
]}

Hiltner, JF ^{[1
]}

机构：

[1] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 1998年 / 55卷 / 1-2期

关键词：

polycrystallinity; thin films; solar cells;

D O I：

10.1016/S0927-0248(98)00045-2

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：

The highest efficiency thin-film polycrystalline CuIn1-xGaxSe2 (CIGS) and CdTe solar cells are compared directly with crystalline Si and GaAs cells with similar respective bandgaps. The excess efficiency losses (6.3% for CIGS and 9.9% for CdTe) are quantitatively separated into eight categories. In each case, the impact of polycrystallinity is evaluated, and the differential losses are identified as being directly attributable to polycrystallinity or due to other causes. Approximately, two-thirds of the excess loss for polycrystalline cells is clearly due to polycrystallinity. Thus, strategies such as grain passivation to reduce the impact of polycrystallinity should be examined, but at the same time conventional approaches for incremental improvement should receive attention. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：43 / 50

页数：8

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