Perovskite Photovoltaics: Hybrid Perovskite Thin‐Film Photovoltaics: In Situ Diagnostics and Importance of the Precursor Solvate Phases (Adv. Mater. 2/2017). Issue 2 (January 2017)

• Record Type: Journal Article
• Authors: Munir, Rahim; Sheikh, Arif D.; Abdelsamie, Maged; Hu, Hanlin; Yu, Liyang; Zhao, Kui; Kim, Taesoo; Tall, Omar El; Li, Ruipeng; Smilgies, Detlef‐M.; Amassian, Aram
• Is Part Of: Advanced materials. Volume 29:Issue 2(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-01
• Subjects: hybrid organic–inorganic perovskite solar cells -- in situ diagnostics -- precursors -- solution processing -- solvates; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201770014
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : The solidification of hybrid perovskite (MAPbX3, X = I, Br, Cl) inks is studied in situ by A. Amassian and co‐workers in article 1604113, revealing a remarkably complex process mediated by strong solvent‐solute interactions, the outcome of which is halide‐dependent. The ink is shown to solidify within 15–20s of spinning, forming a highly solvated (60–70 vol%) precursor phase. Crystalline order of the precursor, or lack thereof, strongly impacts the morphological outcome of thermal conversion and the reproducibility of solar cells.