Today's pick up in solar cell / photovoltaic patents.
5,349,204 (Sep. 20 1994)
Photoelectric conversion device.
Shunpei Yamazaki
Semiconductor Energy Laboratory, Co., Ltd.
abstract:
A photoelectric conversion device has a non-single-crystal semiconductor
laminate member formed on a substrate having a conductive surface, and a
conductive layer formed on the non-single-crystal semiconductor laminate
member. The non-single-crystal semiconductor laminate member has such a
structure that a first non-single-crystal semiconductor layer having a P
or N first conductivity type, an I-type second non-single-crystal
semiconductor layer and a third non-single-crystal semiconductor layer
having a second conductivity type opposite the first conductivity type are
laminated in this order. The first (or third) non-single-crystal
semiconductor layer is disposed on the side on which light is incident,
and is P-type. The I-type non-single-crystal semiconductor layer has
introduced thereinto a P-type impurity, such as boron which is distributed
so that its concentration decreases towards the third (or first)
non-single-crystal semiconductor layer in the thickwise direction of the
I-type layer.
Score=610/1000
Group->>_P4581476
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