Hydrogenated Cs2AgBiBr6 for significantly improved efficiency of lead-free inorganic double perovskite solar cell
Beijing University of Technology · Beijing Computational Science Research Center · +1 more institution
Abstract
Abstract Development of lead-free inorganic perovskite material, such as Cs 2 AgBiBr 6 , is of great importance to solve the toxicity and stability issues of traditional lead halide perovskite solar cells. However, due to a wide bandgap of Cs 2 AgBiBr 6 film, its light absorption ability is largely limited and the photoelectronic conversion efficiency is normally lower than 4.23%. In this text, by using a hydrogenation method, the bandgap of Cs 2 AgBiBr 6 films could be tunable from 2.18 eV to 1.64 eV. At the same time, the highest photoelectric conversion efficiency of hydrogenated Cs 2 AgBiBr 6 perovskite solar cell has been improved up to 6.37% with good environmental stability. Further investigations…
Citation impact
- FWCI
- 31.67
- Percentile
- 100%
- References
- 64
Authors
7Topics & keywords
- Perovskite (structure)
- Materials science
- Band gap
- Photoelectric effect
- Halide
- Doping
- Optoelectronics
- Solar cell