Patent ID: 8039734
Filing Date: 2011-10-18
Classification: H01B,H01L,Y02E,Y02P

Abstract:
1. A solar cell comprising: a semiconductor substrate comprising a first conductive type material; a semiconductor layer comprising a second conductive type material formed on a front surface of the semiconductor substrate, wherein the first conductive type material is different than the second conductive type material; an antireflective layer formed on the semiconductor layer; a front electrode passing through the antireflective layer and contacting the semiconductor layer; and a rear electrode formed on a rear surface of the semiconductor substrate, wherein the depth of the semiconductor layer is 100 nm to 500 nm, and wherein the front electrode comprises a first component including silver (Ag) and a second component including zinc (Zn) and bismuth (Bi), wherein the second component includes more bismuth (Bi) than zinc (Zn) based on wt %.