Perovskite modifiers with porphyrin/phthalocyanine complexes for efficient photovoltaics

Abstract

The development of organic-inorganic hybrid lead halide perovskite solar cells (PSCs) has put the commercialization of this promising photovoltaic technology on the agenda, which calls for improvement of power conversion efficiency (PCE), stability and the preparation of large-area devices. In order to achieve this goal, numerous methods including device encapsulation, better hole/electron transport materials and perovskite material additives have been applied to the fabrication of perovskite solar cells. Porphyrin and phthalocyanine complexes are often used as a charge selective layer due to their excellent optical and electrical properties as well as high stability. Thus, porphyrin/phthalocyanine complexes possess the ability to regulate the grain growth and defect distribution of perovskite films, resulting in improved stability and PCE of PSCs. Therefore, the application of porphyrin and phthalocyanine complexes as perovskite additives with the intention of optimizing PSCs is reviewed in this paper. The effect and mechanism of porphyrin/phthalocyanine complex-based additives monitoring perovskite material properties were introduced according to different action sites.

Graphical Abstract

Keywords:

• Porphyrin complexes
• phthalocyanine complexes
• perovskite solar cells

Acknowledgements

We acknowledge the Science and Technology program of Gansu Province (20JR5RA305), Fundamental Research Funds for the Central Universities of China (lzujbky-2021-ey10), Gansu Provincial Department of Education: young doctor fund project (2021QB-001) and Longyuan young innovative and entrepreneurial talent project of Gansu Province.

Disclosure statement

No potential conflict of interest was reported by the authors.