Patent ID: 9178084
Filing Date: 2015-11-03
Classification: H01L,Y02E,Y02P

Abstract:
1. A solar cell comprising: a support substrate; a back electrode layer on the support substrate, the back electrode layer being formed with a first through hole to expose a part of a top surface of the support substrate; a light absorbing layer on the back electrode layer and including a portion of the light absorbing layer partially filling the first through hole such that a gap is formed between a lateral side of the first through hole and a lateral side of the portion of the light absorbing layer partially filling the first through hole; a buffer layer on the light absorbing layer; a window layer on the buffer layer; wherein the gap includes air, and forms a resistance region present between the lateral side of the portion of the light absorbing layer partially filling the first through hole, the lateral side of the first through hole, and the top surface of the support substrate, the high-resistance region having a resistance higher than a resistance of the light absorbing layer.