The effect of organic cation dynamics on the optical properties in (PEA)₂(MA)[Pb₂I₇] perovskite dimorphs

• Main Authors: Lekina, Yulia, Dintakurti, Sai S. H., Febriansyah, Benny, Bradley, David G., Yan, Jiaxu, Shi, Xiangyan, England, Jason, White, Tim, Hanna, John V., Shen, Zexiang
• 其他作者: School of Physical and Mathematical Sciences
• 格式: Article
• 語言: English
• 出版: 2023
• 主題: Engineering::Materials::Photonics and optoelectronics materials; Dynamics; Hydrogen Bonds
• 在線閱讀: https://hdl.handle.net/10356/153795

Two-dimensional (2D) phenylethyl ammonium (PEA+)-methyl ammonium (MA+) lead iodide ((PEA)2(MA)[Pb2I7]) hybrid perovskite exists as temperature-dependent dimorphs exhibiting an ill-defined phase transition occurring over the 150–200 K range. Raman scattering, photoluminescence, optical absorbance and...