Overcoming size limits with dynamic templates enabling large area single crystal nanowire arrays for photodetectors

Mingjie Feng (), Jiwon Byun, Zongbao Li, Zhiqiang Xie, Wenbo Lu, Xin Wen, Liang Ding, Tingting Wu, Sumbal Jamshaid, Klaus Götz, Chaohui Li, Zijian Peng, Huiying Hu, Jingjing Tian, Jack Elia, Tobias Unruh, Marcus Halik, Ding-Jiang Xue (), Andres Osvet () and Christoph J. Brabec ()
Additional contact information
Mingjie Feng: Friedrich-Alexander-Universität Erlangen-Nürnberg
Jiwon Byun: Friedrich-Alexander-Universität Erlangen-Nürnberg
Zongbao Li: Wuhan Textile University
Zhiqiang Xie: Friedrich-Alexander-Universität Erlangen-Nürnberg
Wenbo Lu: Chinese Academy of Sciences
Xin Wen: Chinese Academy of Sciences
Liang Ding: Chinese Academy of Sciences
Tingting Wu: Chinese Academy of Sciences
Sumbal Jamshaid: Friedrich-Alexander-Universität Erlangen-Nürnberg
Klaus Götz: Friedrich-Alexander-Universität Erlangen-Nürnberg
Chaohui Li: Friedrich-Alexander-Universität Erlangen-Nürnberg
Zijian Peng: Friedrich-Alexander-Universität Erlangen-Nürnberg
Huiying Hu: Friedrich-Alexander-Universität Erlangen-Nürnberg
Jingjing Tian: Friedrich-Alexander-Universität Erlangen-Nürnberg
Jack Elia: Friedrich-Alexander-Universität Erlangen-Nürnberg
Tobias Unruh: Friedrich-Alexander-Universität Erlangen-Nürnberg
Marcus Halik: Friedrich-Alexander-Universität Erlangen-Nürnberg
Ding-Jiang Xue: Chinese Academy of Sciences
Andres Osvet: Friedrich-Alexander-Universität Erlangen-Nürnberg
Christoph J. Brabec: Friedrich-Alexander-Universität Erlangen-Nürnberg

Nature Communications, 2025, vol. 16, issue 1, 1-11

Abstract: Abstract Ordered one dimensional perovskite single-crystal nanowire arrays, which combine high surface-to-volume ratios, directional charge transport, and mechanical flexibility, are typically prepared through solution or vapor phase techniques using templates of silicon, polydimethylsiloxane, photoresist, or aluminum oxide to control crystal growth. However, the size limits of these templates restrict the scalability of the arrays. Here, we introduce a dynamic template-assisted coating strategy that integrates blade coating to address this limitation. The method enables deposition of nanowire arrays on substrates with an area 12 times larger than the template. Incorporating a fluorinated passivating agent into the precursor suppresses surface defect formation and improves structural quality. Photodetectors based on MAPbBr3 arrays achieve a detectivity of 3.9 × 1014 Jones, a linear dynamic range of 160.3 dB, and a responsivity of 1660 A W-1, and retain 90.3% of their photocurrent after 300 h at 85% relative humidity without encapsulation.

Date: 2025
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DOI: 10.1038/s41467-025-65157-5

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