The authors demonstrate a new copper indium gallium diselenide solar cell architecture by replacing the ZnO in the traditional design with SnO 2. The open circuit voltages and efficiencies of the solar cells mČadež with ZnO and SnO 2 were the same indicating favorable band alignment. The solar cells mČadež with SnO 2 showed significantly better damp-heat stability than those mČadež with ZnO. The efficiency of solar cells mČadež with SnO 2 decreased less than 5 after 120 h at 85 C and 85 relative humidity while the efficiency of solar cells mČadež with ZnO declined by more than 70.
|Original language||English (US)|
|Journal||Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films|
|State||Published - Jul 2012|
Bibliographical noteFunding Information:
This work was funded by the Dow Chemical Company and by the Initiative for Renewable Energy and the Environment program of the University of Minnesota (IREE Grant No. M7-2008). This work utilized the University of Minnesota Characterization Facility, which receives partial support from the NSF-NNIN program and capital equipment funding from the NSF through the MRSEC program DMR-0819885.