Rapid Preparation of Perovskite Quantum Dot Composite Photonic Crystal Films and Structure Color and Fluorescence Properties

被引：0
|
作者：
Li J.-D. [1 ]
Liu Z.-F. [1 ]
Ren Y.-Q. [1 ]
Hou J.-S. [1 ]
Liu Y.-F. [1 ]
Fang Y.-Z. [1 ]
机构：
[1] School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2022年 / 43卷 / 06期
基金：
中国国家自然科学基金;
关键词：
electrophoretic deposition; fluorescence enhancement; perovskite quantum dots; photonic crystals;
D O I：
10.37188/CJL.20220079
中图分类号：
学科分类号：
摘要：
Photonic crystal （PC） is a kind of material with periodic self-assembly structure at meso-scopic scale. The most significant characteristic of photonic crystal is the photonic band gap（PBG）. The light whose wavelength is in the photonic band gap cannot be reflected back through the photonic crystal，so the photonic crystal has excellent light regulation ability. The modulation of luminescence intensity and lifetime of quantum dot materials is one of the research hotspots in this field. In this paper，silicon dioxide （SiO2） colloidal spheres were used as photonic crystal assembly units to prepare photonic crystal thin films with controllable thickness by electrophoretic deposition. Perovskite quantum dots （CsPbX3，X=Cl，Br，I） were prepared by thermal injection. After surface hydrophobicity modification，perovskite quantum dots are embedded in the periodic structure of photonic crystal，which has the effect of dual-mode display. In this work，the fluorescence enhancement of perovskite quantum dots by photonic crystal structure is realized，which has potential application value in display，anti-counterfeiting，photodetectors，light-emitting diodes and other fields. © 2022 Chines Academy of Sciences. All rights reserved.
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页码：807 / 816
页数：9
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