Patent ID: 7977139
Filing Date: 2011-07-12
Classification: H01L,Y02E,Y02P

Abstract:
1. A method for manufacturing a CIS-based thin-film solar cell device having a pn heterojunction of a substrate structure comprising: providing providing a pre-rinse solution, wherein the pre-rinse solution includes one of pure water, aqueous solution, and lower amine solution, and heating the pre-rinse solution to a temperature substantially equal to a temperature of buffer layer growth tank; removing with the pre-rinse solution deposits deposited on a surface of the CIS-based light absorbing layer; depositing an n-type buffer layer on the surface of the CIS-based light absorbing layer subsequent to the removing with the pre-rinse solution; and depositing an n-type window layer on the n-type buffer layer, wherein the n-type window layer has an opposite conductivity type from that of the CIS-based light absorbing layer, and has a conductivity.