One-step synthesis of epitaxial 3D/2D metal halide perovskite heterostructures

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

3 Scopus Citations
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Author(s)

  • Shaoyu Zeng
  • Qian Chen
  • Lei Yang
  • Cong Wei
  • Bo Chen
  • Haidong Yu
  • Hai Li
  • Jian Zhang
  • Xiao Huang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)13775-13778
Journal / PublicationChemical Communications
Volume58
Issue number99
Online published18 Nov 2022
Publication statusPublished - 25 Dec 2022

Abstract

Facile and scalable synthesis of perovskite heterostructures with well-controlled heterointerfaces remains challenging. Herein, we developed a simple one-step solution method to prepare 3D/2D CsPbBr3/PEA2PbBr4 perovskite heterostructures with a well-defined epitaxial structure in the gram scale. The formation mechanism was detailed by using in situ time-resolved photoluminescence (PL) spectroscopy analysis. In addition, a series of 3D/2D epitaxial heterostructures were also prepared by changing the organic cations or halogen anions. Due to the effective charge separation and transfer, photodetectors based on the type-II 3D/2D CsPbBr3/PEA2PbBr4 heterostructures showed up to 120 times higher photoresponsivities and 50 times higher on/off ratios compared to devices based on single component perovskites.

Citation Format(s)

One-step synthesis of epitaxial 3D/2D metal halide perovskite heterostructures. / Zhu, Zhaohua; Zeng, Shaoyu; Chen, Qian et al.
In: Chemical Communications, Vol. 58, No. 99, 25.12.2022, p. 13775-13778.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review