Optical Properties of CsPb<italic style="font-style: italic">x</italic>Sn1-<italic style="font-style: italic">x</italic>Br3/a-ZrP Perovskite Quantum Dots for White Light-emitting Diodes

WU Chunxia; JIA Ruijun

doi:10.37188/CJL.20230056

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Optical Properties of CsPb_xSn_1-_xBr₃/a-ZrP Perovskite Quantum Dots for White Light-emitting Diodes

Synthesis and Properties of Materials | 更新时间：2023-09-06

- Optical Properties of CsPb_xSn_1-_xBr₃/a-ZrP Perovskite Quantum Dots for White Light-emitting Diodes
  增强出版
- Chinese Journal of Luminescence Vol. 44, Issue 8, Pages: 1413-1421(2023)
- 作者机构：
  
  江苏大学材料科学与工程学院，江苏镇江　212013
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(11874185)
- DOI：10.37188/CJL.20230056
  CLC： O482.31;TN312.8
- Published：05 August 2023，
  
  Received：09 March 2023，
  
  Revised：21 March 2023，
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吴春霞,贾瑞君.CsPb_xSn_1-_xBr₃/a⁃ZrP复合材料的光学性能及其在白色发光二极管中的应用[J].发光学报,2023,44(08):1413-1421.

WU Chunxia,JIA Ruijun.Optical Properties of CsPb_xSn_1-_xBr₃/a-ZrP Perovskite Quantum Dots for White Light-emitting Diodes[J].Chinese Journal of Luminescence,2023,44(08):1413-1421.
吴春霞,贾瑞君.CsPb_xSn_1-_xBr₃/a⁃ZrP复合材料的光学性能及其在白色发光二极管中的应用[J].发光学报,2023,44(08):1413-1421. DOI： 10.37188/CJL.20230056.

WU Chunxia,JIA Ruijun.Optical Properties of CsPb_xSn_1-_xBr₃/a-ZrP Perovskite Quantum Dots for White Light-emitting Diodes[J].Chinese Journal of Luminescence,2023,44(08):1413-1421. DOI： 10.37188/CJL.20230056.

摘要

钙钛矿量子点（PQDs）由于具有高量子效率、可调节带隙、高色纯度及低成本等优点，在光电领域具有良好的应用前景。然而，其较差的稳定性阻碍了钙钛矿量子点的应用。本文在室温条件下合成了CsPb

/ a⁃ZrP PQDs，与传统CsPbBr

PQDs对比，具有更好的光学性能及稳定性。由于a⁃ZrP对于Pb

选择吸附性的固有特性以及与Cs

离子交换的能力，促进了量子点在a⁃ZrP表面的吸附锚定。因此，合成的CsPb

/a⁃ZrP PQDs具有更高的激子结合能和更强的环境稳定性。该复合材料为生产稳定高效的钙钛矿量子点提供了一种可行的方法，并表明CsPb

/a⁃ZrP PQDs是一种高效的下转换荧光材料，可用于高效发光二极管的制备。

Abstract

Nowadays， perovskite （CsPb

，

=Cl， Br， I） quantum dots （PQDs） have been widely used in optical properties due to their high photoluminescence quantum yield （PLQY）， adjustable band gap， high color purity， and low cost. However， due to its inherent instability， such as oxygen， heat， and moisture. It is still a problem to hinder the applications of lead halide perovskite. In this paper， we synthesize CsPb

/a-ZrP PQDs at room temperature. Compared with the original CsPbBr

PQDs， CsPb

/a-ZrP PQDs have better optical performance and stability. Due to the inherent characteristics of a-ZrP nanosheets for high Pb

adsorptivity and good ability to exchange ions with Cs

， it promoted adsorption and anchoring of perovskite quantum dots on the surface of a-ZrP. Therefore， the synthesized CsPb

/a-ZrP PQDs have higher exciton binding energy and stronger environmental stability. The PQDs provide a feasible method for producing stable and efficient perovskite quantum dots， and show that CsPb

⁃

/a-ZrP PQDs are efficient down-conversion fluorescent materials for the preparation of high-efficiency LEDs.

关键词

钙钛矿量子点吸附掺杂Sn2+荧光增强白光发光二极管（WLED）

Keywords

perovskitequantum dotsadsorptionSn2+ dopedphotoluminescence enhancedwhite light-emitting diodes

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Optical Properties of CsPbxSn1-xBr3/a-ZrP Perovskite Quantum Dots for White Light-emitting Diodes

DOI：10.37188/CJL.20230056

摘要

Abstract

关键词

Keywords

references

Optical Properties of CsPb_xSn_1-_xBr₃/a-ZrP Perovskite Quantum Dots for White Light-emitting Diodes