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Aquointermediate Assisted Highly Orientated Perovskite Thin Films toward Thermally Stable and Efficient Solar Cells
Author(s) -
Li Wenzhe,
Fan Jiandong,
Mai Yaohua,
Wang Liduo
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201601433
Subject(s) - materials science , perovskite (structure) , microcrystalline , monocrystalline silicon , thin film , thermal stability , crystal (programming language) , diffraction , solution process , optoelectronics , crystallography , chemical engineering , nanotechnology , optics , silicon , engineering , programming language , chemistry , physics , computer science
The stability of single‐crystalline/monocrystalline‐like perovskite film is expected to be better than its microcrystalline counterparts. In the present work, highly orientated perovskite thin films (CH 3 NH 3 PbI 3– x Cl x ) are prepared by means of aquointermediates assisted solution process. It displays super‐duper preferred‐orientation along <110> direction that is close to the single crystal, and its diffraction intensity ratio of (110)/(310) is nearly two orders of magnitude higher in contrast to the films that prepared by traditional way. Owing to its superior performances, e.g., highly crystallized quality, stress‐free inside films, longer electron lifetime, faster temporal response time, etc., the highly orientated perovskite‐based solar cells accordingly allow realizing high efficiency while improving its thermal stability.