Enhanced Structural Stability and Photo Responsiveness of CH<sub>3</sub> NH<sub>3</sub> SnI<sub>3</sub> Perovskite via Pressure-Induced Amorphization and Recrystallization.
basic_science · Level V
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- Record sourced from PubMed, PMID 27514760.
- Also identified by DOI 10.1002/adma.201600771.
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Abstract
An organic-inorganic halide CH<sub>3</sub> NH<sub>3</sub> SnI<sub>3</sub> perovskite with significantly improved structural stability is obtained via pressure-induced amorphization and recrystallization. In situ high-pressure resistance measurements reveal an increased electrical conductivity by 300% in the pressure-treated perovskite. Photocurrent measurements also reveal a substantial enhancement in visible-light responsiveness. The mechanism underlying the enhanced properties is shown to be associated with the pressure-induced structural modification.