Article ID Journal Published Year Pages File Type
5491714 Physica B: Condensed Matter 2017 21 Pages PDF
Abstract
Metal halide perovskites are newcomer optoelectronic materials that have attracted enormous attention and single crystal offers better stability and optical electronic performance. In this background, a lead-free, air-stable, effective material of bismuth halide perovskite is highly sought-after. Herein, millimeter-scale single-crystal A3Bi2I9 (A = Cs+ or methylammonium (MA+)) perovskites were synthesized via a facile hydrothermal approach and characterized by various means. Raman spectroscopy results in a layered cleavage distribution. Spin-coating of these compounds produced thin films with uniform surface morphologies, high carrier mobility and superior stabilities. Trivalent-bismuth-based materials were used as the photoactive layer in solution-processed heterojunction solar cell devices, which is a conceptual beneficial exploration and yield power conversion efficiencies of ~ 0.2%.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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