Perovskite Photovoltaics: Hybrid Perovskite Thin-Film Photovoltaics: In Situ Diagnostics and Importance of the Precursor Solvate Phases (Adv. Mater. 2/2017)
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- 作者：Rahim Munir ; Arif D. Sheikh ; Maged Abdelsamie ; Hanlin Hu ; Liyang Yu ; Kui Zhao ; Taesoo Kim ; Omar El Tall ; Ruipeng Li ; Detlef-M. Smilgies and Aram Amassian
- 刊名：Advanced Materials
- 出版年：2017
- 出版时间：January 11, 2017
- 年：2017
- 卷：29
- 期：2
- 全文大小：2247K
- ISSN：1521-4095
文摘
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.