Handy Kasey, Tepper Gary C
Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA.
Molecules. 2023 Jul 13;28(14):5385. doi: 10.3390/molecules28145385.
A new process is reported for the incorporation of a fluoropolymer into a solid perovskite film. Poly(trifluoroethyl methacrylate) [CHC(CH)(COCHCF)] was delivered to methylammonium lead iodide (CHNHPbI) perovskite films by crystallizing the film in supercritical carbon dioxide/ethanol containing the dissolved fluoropolymer. The surface was characterized before and after fluoropolymer exposure using scanning electron microscopy, Raman spectroscopy, and contact angle measurements. The results indicate that the fluoropolymer was incorporated into the perovskite film during the supercritical fluid crystallization process. The incorporation of a hydrophobic fluoropolymer into perovskite has the potential to improve resistance to environmental degradation.
据报道，一种将含氟聚合物掺入固体钙钛矿薄膜的新工艺。通过在含有溶解的含氟聚合物的超临界二氧化碳/乙醇中使甲基碘化铅（CH₃NH₃PbI₃）钙钛矿薄膜结晶，将聚（甲基丙烯酸三氟乙酯）[CH₂C(CH₃)(CO₂CH₂CF₃)]引入到该薄膜中。在含氟聚合物处理前后，使用扫描电子显微镜、拉曼光谱和接触角测量对表面进行了表征。结果表明，在超临界流体结晶过程中，含氟聚合物被掺入到钙钛矿薄膜中。将疏水性含氟聚合物掺入钙钛矿中有可能提高其抗环境降解能力。
