Molecular Design of Three-Dimensional Metal-Free A(NH₄)X₃ Perovskites for Photovoltaic Applications.

ABSTRACT: The intense research activities on the hybrid organic-inorganic perovskites (HOIPs) have led to the greatly improved light absorbers for solar cells with high power conversion efficiency (PCE). However, it is still challenging to find an alternative lead-free perovskite to replace the organohalide lead perovskites to achieve high PCE. This is because both previous experimental and theoretical investigations have shown that the Pb²⁺ cations play a dominating role in contributing the desirable frontier electronic bands of the HOIPs for light absorbing. Recent advances in the chemical synthesis of three-dimensional (3D) metal-free perovskites, by replacing Pb²⁺ with NH₄ ⁺, have markedly enriched the family of multifunctionalized perovskites (Ye et a

SUBMITTER: Bie J 

PROVIDER: S-EPMC8395623 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature