CdCl2 treatment, S diffusion, and recombination in polycrystalline CdTe

被引:87
作者
Metzger, W. K. [1 ]
Albin, D. [1 ]
Romero, M. J. [1 ]
Dippo, P. [1 ]
Young, M. [1 ]
机构
[1] Natl Renewable Energy Lab, Golden, CO 80401 USA
关键词
D O I
10.1063/1.2196127
中图分类号
O59 [应用物理学];
学科分类号
摘要
Time-resolved photoluminescence measurements on glass/SnO2/CdTe and glass/SnO2/CdTe/CdS structures indicate that the CdCl2 process, without any S present, significantly reduces recombination. However, S diffusion is required for lifetimes comparable to those observed in high-efficiency solar cells. Low-temperature photoluminescence, cathodoluminescence, and scanning electron images indicate how defect chemistry, grain-boundary passivation, and morphology are affected by S diffusion and the CdCl2 treatment. (c) 2006 American Institute of Physics.
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页数:6
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