| 摘要 |
PURPOSE: A back junction solar cell having an improved rear structure and a method for manufacturing thereof are provided to improve the inter reflection of a semiconductor substrate by preventing the incident light on the front side of semiconductor substrate from going out through a back side. CONSTITUTION: In a back junction solar cell having an improved rear structure and a method for manufacturing thereof, a base region(102) and an emitter region(104) are formed in the back side of a semiconductor substrate(100). A passivation layer(106) is formed on the base region and the emitter region. Contact holes(106a,106b) are formed in the passivation layer. A base electrode(110) and an emitter electrode(130) are contacted with the base region and emitter region through the contact hole An insulating layer(120) is formed between the base electrode and the emitter electrode. |
