Improving the stability of hybrid perovskite FAPbI3 by forming 3D/2D interfaces with organic spacers. Issue 60 (7th July 2022)

• Record Type: Journal Article
• Authors: Kim, Yun-Sim; Ri, Chol-Hyok; Kye, Yun-Hyok; Jong, Un-Gi; Yu, Chol-Jun
• Is Part Of: Chemical communications. Volume 58:Issue 60(2022)
• Page Start: 8440
• Page End: 8443
• Publication Date: 2022-07-07
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc02396b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Organic spacer cations with aromatic rings are more favourable for enhancing the moisture stability of FAPbI3 3D/2D interfaces than those with aliphatic chains. The anilinium-based system shows the highest resistance to water penetration. Abstract : Interfaces composed of three-dimensional (3D) and 2D organic–inorganic hybrid formamidinium lead iodide (FAPbI3 ) linked by organic spacers (OSs) are studied using first-principles calculations. The OS cations with aromatic rings, like phenylethylammonium and anilinium (AN), are found to be more favourable for enhancing the stability of the 3D/2D interface than butylammonium with aliphatic chains. The AN-based interface shows the highest resistance to penetration of water molecules.