Phase distribution regulation of formamidinium-based quasi-2D perovskites through solution engineering.

ABSTRACT: Quasi-2D perovskites have attracted attention as potential solar energy absorber materials due to their balanced efficiency and stability and their unique quantum-well structures. In order to facilitate directional excitons and charge carrier transport and preferential energy transfer landscape in photovoltaic thin films, the phase distribution formed by different types of microstructural domains should be regulated. In this work, the Dion-Jacobson-type spacer 1,4-phenylenedimethanammonium (PDMA) was used, and different strategies were pursued to control the phase distribution in formamidinium-based (FA) quasi-2D perovskites based on the composition of (PDMA)FA₄Pb₅I₁₆. In general, doping with FACl modulated the crystallization kinetics, forming 2D low-n<

SUBMITTER: Zhang X 

PROVIDER: S-EPMC11372761 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature