Abstract
We present a comprehensive study concerning the light exposure of bare Cu(In,Ga)Se2 (CIGSe) layers in ambient air and its impact on the electrical properties of the solar cells. With time-resolved photoluminescence (TRPL) a degradation of the minority charge carrier lifetime after air-light exposure of CIGSe layers is observed. This degradation is related to a light induced modification of the CIGSe surface and persists upon completion of the solar cells. A strong reduction in solar cell performance from ∼16% down to ∼13% reflects the degradation effect of the solar cell’s absorber. The deteriorated solar cell performance can be recovered by light soaking of the complete solar cell at increased temperatures of 85 °C.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
