Restructuring and Reshaping of CsPbX₃ Perovskites by Lithium Salts

Abstract

been showing a significant performance increase in the last decade for both solar cells and light emitting diodes (LED), partly due to their higher tolerance to ambient atmosphere and moisture compared to organic-inorganic hybrid perovskites. [3,4] Traditionally, perovskites have mainly been studied using solutionprocessing methods due to their facile synthesis. In contrast, vapor-phase deposition (VPD) in vacuum offers a safe environment for crystal growth and the essential easy scalability for industrial production of perovskite optoelectronics which is severely limited for solution-processed devices. [5][6][7] All-inorganic perovskites are