B‐Site Doping of Metal Halide Perovskite Nanoplatelets Influences Their Optical Properties

Author:

Litvin Aleksandr P.1,Margaryan Igor V.2,Yin Wenxu1,Zhang Xiayou1,Zheng Weitao1,Rogach Andrey L.3ORCID

Affiliation:

1. Key Laboratory of Automobile Materials MOE School of Materials Science & Engineering, and Jilin Provincial International Cooperation Key Laboratory of High‐Efficiency Clean Energy Materials Jilin University Changchun 130012 P. R. China

2. PhysNano Department ITMO University Saint Petersburg 197101 Russia

3. Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP) City University of Hong Kong 83 Tat Chee Avenue Hong Kong SAR 999077 P. R. China

Abstract

AbstractMetal halide perovskite nanoplatelets (NPls) have recently joined a rich family of 2D semiconductor nanomaterials. Quantum and dielectric confinement in these nanostructures endow them with useful optical properties, which include, but are not limited to, high linear and nonlinear absorption coefficients, narrow and tunable emission bands, and high photoluminescence quantum yield. These characteristics render perovskite NPls promising for applications in lighting, photodetection, nonlinear optics, and photocatalysis. Doping is a universal approach for tuning optical and electronic properties of semiconductor materials, and the B‐site doping of perovskite NPls allows the further improvement and adjustment on demand of the above‐mentioned optical properties and may result in the appearance of fundamentally new behavior through embedding optically active dopants. In this mini‐review, the basic knowledge about perovskite NPls is shortly summarized in terms of their colloidal synthesis, and then the B‐site doping of perovskite NPls is considered in terms of the existing approaches (in situ and post‐synthetic doping) and its effect on the optical characteristics (doping with self‐emitting ions such as Mn2+and rare‐earth elements; consequences for the nonlinear optical response).

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Publisher

Wiley

Subject

Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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