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Rapid Capillary‐Assisted Solution Printing of Perovskite Nanowire Arrays Enables Scalable Production of Photodetectors
Author(s) -
Pan Shuang,
Zou Haiyang,
Wang Aurelia C.,
Wang Zewei,
Yu Jiwoo,
Lan Chuntao,
Liu Qiliang,
Wang Zhong Lin,
Lian Tianquan,
Peng Juan,
Lin Zhiqun
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202004912
Subject(s) - perovskite (structure) , materials science , photodetector , nanowire , fabrication , substrate (aquarium) , nanotechnology , capillary action , optoelectronics , contact print , chemistry , composite material , crystallography , oceanography , geology , medicine , alternative medicine , pathology
Despite recent progress in producing perovskite nanowires (NWs) for optoelectronics, it remains challenging to solution‐print an array of NWs with precisely controlled position and orientation. Herein, we report a robust capillary‐assisted solution printing (CASP) strategy to rapidly access aligned and highly crystalline perovskite NW arrays. The key to the CASP approach lies in the integration of capillary‐directed assembly through periodic nanochannels and solution printing through the programmably moving substrate to rapidly guide the deposition of perovskite NWs. The growth kinetics of perovskite NWs was closely examined by in situ optical microscopy. Intriguingly, the as‐printed perovskite NWs array exhibit excellent optical and optoelectronic properties and can be conveniently implemented for the scalable fabrication of photodetectors.