期刊
APPLIED PHYSICS LETTERS
卷 99, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3662404
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资金
- European Commission (EU) [211821]
We investigate the influence of thermal annealing on the passivation quality of crystalline silicon (c-Si) surfaces by intrinsic and n-type hydrogenated amorphous silicon (a-Si:H) films. For temperatures up to 255 degrees C, we find an increase in surface passivation quality, corresponding to a decreased dangling bond density. Due to the combined chemical and field effect passivation of the intrinsic/n-type a-Si: H layer stack, we obtained minority carrier lifetimes with a value as high as 13.3 ms at an injection level of 10(15) cm(-3). For higher annealing temperatures, a decreased passivation quality is observed, which is attributed to hydrogen effusion. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3662404]
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