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Device Physics of Hydrogenated Amorphous Silicon Solar Cells. Edition No. 1

VDM Publishing House, August 2008, Pages: 176

This paper discusses the device physics of
as-deposited and light-soaked hydrogenated amorphous
silicon solar cells. The staebler-Wronski effect is
the key issue in this paper. The metastability of
a-Si:H solar cell is explained by a modified hydrogen
collision model to explain the degradation of a-Si:H
after some time light soaking. The key parameters are
studied by experiments as well as computer
simulation, both reach the agreement for our theory.
Valence band tail model is used for our theory and
simulation. For light soaked state, a defect is used
for modeling.

Jianjun Liang.
I am doing hydrogenated amorphous silicon and heterojunction
solar cell as well. The Staebler-Wronski effect in a-Si:H has
been worked for more than 30 years but still has no clear picture
on it. Heterojunction solar cell is a good direction for high
efficiency solar cells but still low cost.