Overcoming size limits with dynamic templates enabling large area single crystal nanowire arrays for photodetectors
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 MAPbBr<sub>3</sub> arrays achieve a detectivity of 3.9 × 10<sup>14</sup> Jones, a linear dynamic range of 160.3 dB, and a responsivity of 1660 A W<sup>-1</sup>, and retain 90.3% of their photocurrent after 300 h at 85% relative humidity without encapsulation.
Authors
- Tingting Wu (ORCID: https://orcid.org/0000-0002-4653-8493)
- Christoph Josef Brabec (ORCID: https://orcid.org/0000-0002-9440-0253)
- Zongbao Li (ORCID: https://orcid.org/0000-0002-3148-4277)
- Sumbal Jamshaid (ORCID: https://orcid.org/0009-0003-3975-9452)
- Wenbo Lu (ORCID: https://orcid.org/0000-0001-8158-7947)
- Marcus Halik (ORCID: https://orcid.org/0000-0001-5976-0862)
- Jack Elia (ORCID: https://orcid.org/0000-0001-7373-2390)
- Tobias Unruh (ORCID: https://orcid.org/0000-0002-8903-4850)
- Ding‐Jiang Xue (ORCID: https://orcid.org/0000-0002-7599-0008)
- Klaus Götz (ORCID: https://orcid.org/0000-0003-2019-2137)
- Andres Osvet (ORCID: https://orcid.org/0000-0001-9098-9171)
- Zhiqiang Xie (ORCID: https://orcid.org/0009-0006-9562-9291)
- Zijian Peng (ORCID: https://orcid.org/0000-0003-3678-6538)
- Liang Ding
- Huiying Hu (ORCID: https://orcid.org/0009-0000-8217-8133)
- Jingjing Tian (ORCID: https://orcid.org/0000-0003-2405-4268)
- Mingjie Feng
- Xin Wen (ORCID: https://orcid.org/0009-0001-0477-4420)
- Ji-Won Byun (ORCID: https://orcid.org/0009-0001-3605-8867)
- Chaohui Li (ORCID: https://orcid.org/0000-0002-8399-4244)
Institutions
- Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
- Chinese Academy of Sciences (CN)
- Helmholtz Institute Erlangen-Nürnberg (DE)
- Beijing National Laboratory for Molecular Sciences (CN)
- Wuhan Textile University (CN)
- Advanced Optical Technologies (United States) (US)
- Institute of Chemistry (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-11-10
- DOI
- https://doi.org/10.1038/s41467-025-65157-5
- Citations
- 1
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.73