Patent ID: 6242686
Filing Date: 2001-06-05
Classification: H01L,Y02E,Y02P

Abstract:
A photovoltaic device comprising a pin junction of a player, an i-layer and an n-layer,wherein the p-layer includes a first p-layer and a second p-layer thereover, the first p-layer having a thickness of 5 nm or less and being uniformly doped with a p-type impurity, and the second p-layer being formed by decomposition of a gas which does not positively incorporate a p-type impurity;wherein each of the first p-layer and the second p-layer comprises one of (a) hydrogenated amorphous silicon (a-Si:H), (b) hydrogenated amorphous germanium (a-Ge:H), and (c) hydrogenated amorphous silicon germanium (a-SiGe:H); andwherein the first p-layer is formed directly on a transparent electrode.