Hydrogenated Cs₂AgBiBr₆ for significantly improved efficiency of lead-free inorganic double perovskite solar cell.

ABSTRACT: Development of lead-free inorganic perovskite material, such as Cs₂AgBiBr₆, 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 Cs₂AgBiBr₆ 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 Cs₂AgBiBr₆ films could be tunable from 2.18 eV to 1.64 eV. At the same time, the highest photoelectric conversion efficiency of hydrogenated Cs₂AgBiBr₆ perovskite solar cell has been improved up to 6.37% with good environmental stability. Further investigations confirmed that the i

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC9192601 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature