Two-Dimensional Halide Perovskites for Emerging New- Generation Photodetectors

Yingying Tang, Xianyi Cao, Qijin Chi

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Compared to their conventional three-dimensional (3D) counterparts, two-dimensional (2D) halide perovskites have attracted more interests recently in a variety of areas related to optoelectronics because of their unique structural characteristics and enhanced performances.
In general, there are two distinct types of 2D halide perovskites. One represents those perovskites with an intrinsic layered crystal structure (i.e. MX6 layers, M = metal and X = Cl, Br, I), the other defines the perovskites with a 2D nanostructured morphology such as nanoplatelets and nanosheets. Recent studies have shown that 2D halide perovskites hold promising potential for the development of new-generation photodetectors, mainly arising from their highly efficient photoluminescence and absorbance, color tunability in the visible-light range and relatively high stability. In this chapter, we present the summary and highlights of latest researches on these two types of 2D halide perovskites for developing photodetectors, with an emphasis on synthesis methods, structural characterization, optoelectronic properties, and theoretical analysis and simulations. We also discuss the current challenging issues and future perspective. We hope this chapter would add new elements for understanding halide perovskite-based 2D materials and for developing their more efficient optoelectronic devices.
Original languageEnglish
Title of host publicationTwo-dimensional Materials for Photodetector
EditorsPramoda Kumar Nayak
Publication date2018
ISBN (Electronic)978-953-51-3952-2
Publication statusPublished - 2018

Bibliographical note

Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution 3.0 License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


  • Photodetector
  • Halide perovskite
  • Two-dimensional layered
  • Structure
  • Nanoplatelet
  • Optoelectronic device


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