Perovskite solar cells

Authors

Liqiu Zheng Dr., Albany State UniversityFollow
Tyler Hurst, Albany State UniversityFollow
Zhongrui Li, University of MichiganFollow

Abstract

The semiconductor perovskite CsPbBr₂I was doped with Mn²⁺ to modulate its optical and photovoltaic performance. The Mn²⁺-doped CsPb_0.9Mn_0.1Br₂I exhibited improved crystalline quality. Ultraviolet and visible spectroscopy of Mn²⁺-doped CsPb_0.9Mn_0.1Br₂I revealed enhanced absorption capacity. Although the efficiency was not as good as desired, the enhanced light absorption of CsPb_0.9Mn_0.1Br₂I still boosted the photovoltaic performance when it was utilized as a light absorber in perovskite solar cells, along with a low-cost carbon electrode. Compared with its counterpart CsPbBr₂I, the doped CsPb_0.9Mn_0.1Br₂I based solar cells demonstrated long-term air stability. Not only long-lasting stability was achieved by doping with Mn²⁺, the toxicity was also lessened by replacing the amount of hazardous lead in perovskite with harmless manganese.

Acknowledgements

Acknowledgments: this work was supported by National Science Foundation (NSF) (Grant No.1700339) There is no conflict of interest to declare.

Recommended Citation

Zheng, Liqiu Dr.; Hurst, Tyler; and Li, Zhongrui (2022) "Perovskite solar cells," Georgia Journal of Science, Vol. 80, No. 2, Article 9.
Available at: https://digitalcommons.gaacademy.org/gjs/vol80/iss2/9