Rapid Capillary-Assisted Solution Printing of Perovskite Nanowire Arrays Enables Scalable Production of Photodetectors

Shuang Pan, Haiyang Zou, Aurelia C. Wang, Zewei Wang, Jiwoo Yu, Chuntao Lan, Qiliang Liu, Zhong Lin Wang, Tianquan Lian, Juan Peng, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)14942-14949
Number of pages8
JournalAngewandte Chemie - International Edition
Volume59
Issue number35
DOIs
StatePublished - 24 Aug 2020

Keywords

  • nanochannels
  • optoelectronic materials
  • perovskite nanowires
  • photodetectors

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