D.H. Kim M.S. Seol D.W. Kwak D.W. Lee Jeung-hyun Jeong H.Y. Cho 2024-01-12T23:04:40Z 2024-01-12T23:04:40Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/98944 English CIGS solar cell proton defect Thermal stability of deep level defects in proton implanted CIGS solar cells Conference 1 Electrochemical society meeting Electrochemical society meeting US