Photovoltaic device and method for manufacturing thereof

Abstract

Disclosed is a method for manufacturing a photovoltaic device. The method for manufacturing a photovoltaic device comprises providing substrates having trenches (101,102,103,104) formed therein, forming a first electrode layer (110), and forming an auxiliary electrode layer (120) in areas between the trenches such that the auxiliary electrode layer is located on or under the first electrode layer, the auxiliary electrode layer having electrical resistance less than that of the first electrode layer, and contacting with a portion of an area of the first electrode layer, forming a photovoltaic layer (130) on the first electrode layer or the auxiliary electrode layer, forming a second electrode layer (140) by obliquely depositing a second conductive material on the photovoltaic layer, etching the photovoltaic layer formed in the trenches such that the first electrode layer or the auxiliary electrode layer arc exposed and forming a conductive layer (160) by obliquely depositing a third conductive material on the second electrode layer such that the second electrode layer and either the first electrode layer or the auxiliary electrode layer are electrically connected to each other within the trench, the first electrode layer or the auxiliary electrode layer formed in one area generating electricity from light, and the second electrode layer formed in another area generating electricity from light.