Issue 46, 2021

Encapsulation of lead halide perovskite nanocrystals (NCs) at the single-particle level: strategies and properties

Abstract

Lead halide perovskite NCs (APbX3, A = formamidinium (FA), methylammonium (MA) or Cs; X = Cl, Br, I or their mixture) have attracted unprecedented attention due to their excellent photophysical properties and wide application prospects. However, the inherent ionic structure of APbX3 NCs makes them very sensitive to external conditions such as water and oxygen, resulting in poor stability. As a feasible strategy, encapsulation is considered to be effective in improving the stability. In this minireview, we focus on single-particle-level coating, which not only can improve the stability but also maintain the nano effect of the original NCs. This review summarizes the fundamental information on APbX3 NCs and the necessity of single-particle-level coating. Subsequently, a variety of heterostructures at the single-particle level are introduced in detail. Then, their applications are summarized. Moreover, we discuss the challenges and prospects of the single-particle-level heterostructures based on APbX3 NCs.

Graphical abstract: Encapsulation of lead halide perovskite nanocrystals (NCs) at the single-particle level: strategies and properties

Article information

Article type
Minireview
Submitted
20 avq 2021
Accepted
28 okt 2021
First published
03 noy 2021

Nanoscale, 2021,13, 19341-19351

Encapsulation of lead halide perovskite nanocrystals (NCs) at the single-particle level: strategies and properties

Q. Zhong, M. Cao and Q. Zhang, Nanoscale, 2021, 13, 19341 DOI: 10.1039/D1NR05478C

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