OBSERVATION OF STABLE ROOM-TEMPERATURE PHOTOCONDUCTIVITY IN HYDROGENATED AMORPHOUS-SILICON FOLLOWING LONG-TERM LIGHT SOAKING

被引:5
作者
XI, J
MACNEIL, J
LIU, T
GHOSH, M
机构
[1] Advanced Photovoltaic Systems Inc., Princeton, NJ 08543-7093
关键词
D O I
10.1063/1.107116
中图分类号
O59 [应用物理学];
学科分类号
摘要
Intrinsic hydrogenated amorphous silicon exhibiting unchanged room-temperature photoconductivity of 1.5 x 10(-5) (OMEGA cm)-1 at 100 mW cm-2 after prolonged illumination and a photo-to-dark conductivity ratio over 10(6) is reported for the first time. Photoconductivity and CPM data in the as-deposited and light-soaked states, supported by dark conductivity and analytical measurements, suggest that the metastable midgap states in this material are significantly lower than levels previously reported.
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页码:1975 / 1977
页数:3
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