Cited by 72Perovskite Materials and Applications2D Materials and ApplicationsAdvanced Semiconductor Detectors and Materials

Graphene‐Assisted Growth of Patterned Perovskite Films for Sensitive Light Detector and Optical Image Sensor Application

Wu, Chun‐Yan, Wang, Zhenyu, Liang, Lin, Gui, Tijun, Zhong, Wei, Du, Rui‐Chao, Xie, Chao, Wang, Li +1 more·2019·Small

Abstract

Controlled growth of high‐quality patterned perovskite films on a large scale is essentially required for the application of this class of materials in functional integrated devices and systems. Herein, graphene‐assisted hydrophilic–hydrophobic surface‐induced growth of Cs‐doped FAPbI 3 perovskite films with well‐patterned shapes by a one‐step spin‐coating process is developed. Such a facile fabrication technique is compatible with a range of spin‐coated perovskite materials, perovskite manufacturing processes, and substrates. By employing this growing method, controllable perovskite photodetector arrays are realized, which have not only prominent photoresponse properties with a responsivity and specific detectivity of 4.8 AW−1 and 4.2 × 10 12 Jones, respectively, but also relatively small pixel‐to‐pixel variation. Moreover, the photodetectors array can function as an effective visible light image sensor with a decent spatial resolution. Holding the above merits, the proposed technique provides a convenient and effective pathway for large‐scale preparation of patterned perovskite films for multifunctional application purposes.

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Crossref · 10.1002/smll.201900730

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47 of 47 references verified0 citation errors · 0 not checkable

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  • A graphene-assisted hydrophobic-hydrophilic surface induction method was employed to grow well-shaped carbon-doped perovskite films through a one-step spin-coating process.

    “For instance, a graphene-assisted hydrophobic-hydrophilic surface induction method was employed to grow well-shaped carbon-doped perovskite films through a one-step spin-coating process (Figure 5D) [105].”
  • This fabrication technique was compatible with a variety of perovskite materials, processes, and substrates, achieving controllable perovskite photodetector arrays with excellent photoresponse characteristics and good spatial resolution.

    “This fabrication technique was compatible with a variety of perovskite materials, processes, and substrates, achieving controllable perovskite photodetector arrays with excellent photoresponse characteristics and good spatial resolution.”

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Authors
Wu, C., Wang, Z., Liang, L., Gui, T., Zhong, W., Du, R., Xie, C., Wang, L., & Luo, L.
Affiliations
  • School of Electronic Science and Applied Physics Hefei University of Technology Hefei Anhui 230009 China
  • Hefei University of Technology (CN)
Corresponding author
  • Xie, Chao
  • Luo, Lin‐Bao
Venue
Small
Publisher
Wiley
Published
2019-04-08
Volume
15
Issue
19
Pages
e1900730-e1900730
ISSN
  • 1613-6810 (ISSN-L)
  • 1613-6829
OpenAlex
W2939281535
Cited by
72
References
47
Citations by year
2026: 3 · 2025: 7 · 2024: 7 · 2023: 12 · 2022: 15 · 2021: 10 · 2020: 12 · 2019: 6
FWCI
3.86
Type
journal article
Language
en
Open access
closed
Locations
  • Small (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (61575059, 61675062, 21501038)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Perovskite Materials and Applications
  • Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Semiconductor Detectors and Materials
Keywords
perovskite thin films, organic-inorganic hybrid perovskites, perovskite photodetectors, photodetector arrays, spin coating

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