Beneficial effects are demonstrated by PbI2 incorporated into perovskite materials as a light absorber in solar cells. The PbI2 distributed into the perovskite layers leads to reduced hysteresis and ionic migration, and enables the fabrication of remarkably improved solar cells with a certified power conversion efficiency of 19.75% under air-mass 1.5 global (AM 1.5G) illumination of 100 mW cm-2 intensity.
Bibliographical notePublisher Copyright:
© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
- excess PbI
- hybrid solar cells
- perovskite materials
- solar cells
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- General Materials Science