Flexible All-Inorganic Perovskite Photodetector with a Combined Soft-Hard Layer Produced by Ligand Cross-Linking

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

13 Scopus Citations
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Author(s)

  • Tongyu Shi
  • Xi Chen
  • Rui He
  • Hao Huang
  • Xinru Yuan
  • Zhenyu Zhang
  • Jiahong Wang
  • Xue-Feng Yu

Detail(s)

Original languageEnglish
Article number2302005
Journal / PublicationAdvanced Science
Volume10
Issue number22
Online published28 May 2023
Publication statusPublished - 4 Aug 2023

Link(s)

Abstract

Although perovskite nanocrystals have attracted considerable interests as emerging semiconductors in optoelectronic devices, design and fabrication of a deformable structure with high stability and flexibility while meeting the charge transport requirements remain a huge challenge. Herein, a combined soft-hard strategy is demonstrated to fabricate intrinsically flexible all-inorganic perovskite layers for photodetection via ligand cross-linking. Perfluorodecyltrichlorosilane (FDTS) is employed as the capping ligand and passivating agent bound to the CsPbBr3 surface via Pb-F and Br-F interactions. The Si Cl head groups of FDTS are hydrolyzed to produce SiOH groups which subsequently condense to form the Si O Si network. The CsPbBr3@FDTS nanocrystals (NCs) are monodispersed cubes with an average particle size of 13.03 nm and exhibit excellent optical stability. Furthermore, the residual hydroxyl groups on the surface of the CsPbBr3@FDTS render the NCs tightly packed and cross-linked to each other to form a dense and elastic CsPbBr3@FDTS film with soft and hard components. The photodetector based on the flexible CsPbBr3@FDTS film exhibits outstanding mechanical flexibility and robust stability after 5000 bending cycles. © 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.

Research Area(s)

  • all-inorganic perovskites, bendable, flexible photodetectors, ligands cross-linking, nanocrystals, soft-hard combination

Citation Format(s)

Flexible All-Inorganic Perovskite Photodetector with a Combined Soft-Hard Layer Produced by Ligand Cross-Linking. / Shi, Tongyu; Chen, Xi; He, Rui et al.
In: Advanced Science, Vol. 10, No. 22, 2302005, 04.08.2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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