New down-converter for UV-stable perovskite solar cells: Phosphor-in-glass
Abstract
Degradation of hybrid lead halide perovskite by UV light is a crucial issue that limits the commercialization of lead halide perovskite solar cells (PSCs). To address this problem, phosphor-in-glass (PiG) is used to convert UV to visible light. Down-conversion of UV light by PiG dramatically increases UV-stability of PSCs and enables PSCs to harvest UV light that is currently wasted. Performance of PSCs with PiG layer does not change significantly during 100 h-long UV-irradiation, while conventional PSCs degrade quickly by 1 h-long UV-irradiation. After 100 h long UV-irradiation, power conversion efficiency of PSCs with PiG is 440% larger than that of conventional PSCs. This result points a direction toward PSCs which are very stable and highly efficient under UV light.
- Publication:
-
Journal of Power Sources
- Pub Date:
- June 2018
- DOI:
- 10.1016/j.jpowsour.2018.04.026
- Bibcode:
- 2018JPS...389..135R
- Keywords:
-
- Hybrid lead halide perovskite;
- Light stability;
- Phosphor-in-glass;
- Luminescent down-converter