Enhanced performance of tin halide perovskite solar cell by addition of lead thiocyanate.

ABSTRACT: Organic-inorganic hybrid halide perovskites have attracted great attention as a new type of photovoltaic materials. However, lead (Pb) perovskite solar cells (PSCs) would cause environmental pollution in future large-scale applications. Therefore, it is imperative to find environmentally-friendly metals to replace lead. Although tin (Sn) halide perovskites can be regarded as a valid alternative to lead perovskites, their poor stability and lower conversion efficiency hinder the substitution of Sn for Pb. In this work, highly uniform and pinhole-free perovskite films were prepared by the introduction of a small amount of lead thiocyanate in precursor solutions. The CH₃NH₃SnI₃ (MASnI₃) films with Pb additive show an absorption edge of 950 nm. Besid

SUBMITTER: Gao F 

PROVIDER: S-EPMC9079876 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature