CsPbBr<sub>3</sub>光波导中激子局域场和复合速率的增强

刘春旭; 张继森; 陈泳屹; 宋悦; 赵海峰; 骆永石; 张立功; 张振中; 王立军

doi:10.37188/CJL.20200375

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CsPbBr₃光波导中激子局域场和复合速率的增强

材料合成及性能 | 更新时间：2021-02-08

- CsPbBr₃光波导中激子局域场和复合速率的增强
- Localized Field and Recombination Rate Enhancement of Excitons in CsPbBr₃ Optical Waveguide
- 发光学报 2021年42卷第2期页码：195-200
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所发光学及应用国家重点实验室, 吉林长春 130033
- 作者简介：
  
  [ "刘春旭(1973－), 女, 吉林公主岭人, 博士, 副研究员, 2001年于中国科学院长春光学精密机械与物理研究所获得博士学位, 主要从事纳米材料的光物理的研究。E-mail:cxliu@ciomp.ac.cn" ]
  [ "宋悦(1989-), 女, 吉林松原人, 博士, 2019年于中国科学院长春光学精密机械与物理研究所获得博士学位, 主要从事大功率半导体激光器的研究。E-mail:songyue@ciomp.ac.cn" ]
  [ "王立军(1946-), 男, 吉林舒兰人, 硕士, 研究员, 博士研究生导师, 中国科学院院士, 1982年于吉林大学获得硕士学位, 主要从事激光技术等领域的基础及应用的研究。E-mail:ljwang2013ys@163.com" ]
- 基金信息：
  
  国家自然科学基金(Y8G73JM);国家自然科学基金(61077025);国家自然科学基金(10904140);国家自然科学基金(10774142);国家自然科学基金(60308008)
- DOI：10.37188/CJL.20200375
  中图分类号： O482.31;TP394.1
- 纸质出版日期：2021-02，
  
  收稿日期：2020-12-07，
  
  录用日期：2021-1-7
- 稿件说明：
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刘春旭, 张继森, 陈泳屹, 等. CsPbBr₃光波导中激子局域场和复合速率的增强[J]. 发光学报, 2021,42(2):195-200.

CHUN-XU LIU, JI-SEN ZHANG, YONG-YI CHEN, et al. Localized Field and Recombination Rate Enhancement of Excitons in CsPbBr₃ Optical Waveguide. [J]. Chinese journal of luminescence, 2021, 42(2): 195-200.
刘春旭, 张继森, 陈泳屹, 等. CsPbBr₃光波导中激子局域场和复合速率的增强[J]. 发光学报, 2021,42(2):195-200. DOI： 10.37188/CJL.20200375.

CHUN-XU LIU, JI-SEN ZHANG, YONG-YI CHEN, et al. Localized Field and Recombination Rate Enhancement of Excitons in CsPbBr₃ Optical Waveguide. [J]. Chinese journal of luminescence, 2021, 42(2): 195-200. DOI： 10.37188/CJL.20200375.

摘要

将银膜和聚甲基丙烯酸甲酯（PMMA）及高增益的钙钛矿CsPbBr

集成一个平面光波导，通过对体系的物理机理和光学特性研究，探索等离子体结构新应用的可能。实验结果表明，随着体系结构的改变，特别是对PMMA厚度的调制，发现局域在银膜和钙钛矿CsPbBr

界面电磁场增强，使得CsPbBr

激子的发光和辐射速率（

-1

）增强。我们用双指数衰减和描述系综衰减的延展模型分别进行了讨论，发现二者有较大的差别。采用双指数衰减拟合求寿命没考虑系综的限域效应和银/CsPbBr

界面上传播表面等离极化激元（SPPs）引起的局域场增强，所以在自由空间拟合得到的平均荧光寿命

avg

在30~25 ns范围，与先前报道结果接近。而用系综衰减的延展模型得到

avg

在12~9 ns范围，荧光寿命显著变小即辐射速率增强。上述研究对开发表面等离激元发光显示器件和光物理基础研究提供了依据。

Abstract

In this paper

PMMA and perovskite CsPbBr

films have been integrated into a plane waveguides to explore the optical physical mechanism and new application of plasmon structure. It is shown that the localized field on the Ag/perovskite CsPbBr

interface has been increased giving rise to PL and radiative ratio(

-1

) enhancement of CsPbBr

excitons as varying system structures

especially modifying the thickness of PMMA. Decay curves have been fitted by both two exponential and ensemble stretched functions

respectively. It is found that there is big fitting discrepancy. Without considering the localized field enhancement on the Ag/CsPbBr

interface

the fit results(

avg

30~25 ns) by two exponential form are similar to the results in free space reported previously. The PL lifetime shortening(

avg

12~9 ns)

or radiative rate increasing have been found by the latter fitting. The above-mentioned investigations can provide the basis for optical physical fundamental research and design and developing of surface plasmon polaritons(SPPs) luminescence-display devices.

关键词

钙钛矿CsPbBr3表面等离子体光波导局域场增强

Keywords

perovskite CsPbBr3surface plasmonoptical waveguideenhancement of localized field

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CsPbBr3光波导中激子局域场和复合速率的增强

Localized Field and Recombination Rate Enhancement of Excitons in CsPbBr3 Optical Waveguide

DOI：10.37188/CJL.20200375

摘要

Abstract

关键词

Keywords

references

CsPbBr₃光波导中激子局域场和复合速率的增强

Localized Field and Recombination Rate Enhancement of Excitons in CsPbBr₃ Optical Waveguide