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基于金纳米粒子增强有机-无机杂化钙钛矿放大自发辐射

Enhancing Organic-inorganic Hybrid Perovskite Amplified Spontaneous Emission Based on the Gold Nanoparticles

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摘要

有机-无机杂化钙钛矿作为激光的增益介质时, 存在室温时纳秒脉冲或连续激光作用下的光泵浦器件不稳定、难以实现电泵浦激光等问题.通过将金纳米粒子水溶液和PEDOT∶PSS溶液共混的方法, 将20 nm尺寸的金纳米粒子掺杂至光泵浦平面波导器件的界面层PEDOT∶PSS中, 掺杂了金纳米粒子的平面波导器件(以CH3NH3PbBr3为增益介质)的放大自发辐射绝对强度相对于没掺杂金纳米粒子的器件提升了5.5倍.实验结果表明, 金纳米粒子的引入, 一方面提升了CH3NH3PbBr3薄膜的吸收, 增加了粒子反转数目, 另一方面加快了激发态激子的辐射跃迁速率.仿真分析表明, 金纳米粒子的近场和远场复合表面等离激元可有效耦合增益介质光吸收/发射主区域, 从而提高了平面波导器件的放大自发辐射性能.研究结果可为高效泵浦激光的实现提供参考.

Abstract

When the organic-inorganic hybrid perovskite has been regarded as the gain medium in lasers, the lasing devices with nanosecond laser pulses or continuous wave pumping at room temperatures is unstable and the electrically driven lasing is difficult to be achieved. Gold nanoparticles solution and PEDOT∶PSS solution were blended, gold nanoparticles with size of 20 nm were doped into PEDOT∶PSS interface layer in a slab waveguide device. As a result, the facile device doping with gold nanoparticles shows a 5.5-fold enhanced amplified spontaneous emission intensity than the device without gold nanoparticles. The results show that gold nanoparticles can effectively improve the absorption of CH3NH3PbBr3 film, increase the population inversion and accelerate the excitons radiative decay process. Combining with theoretical simulation, the comprehensive near- and far-field surface plasmon of gold nanoparticles could both couple with the absorption/emission area, so that the amplified spontaneous emission of planar waveguide are improved. The results can provide a reference in fabricating the high performance optically pumped amplified spontaneous emission devices.

Newport宣传-MKS新实验室计划
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中图分类号:O433

DOI:10.3788/gzxb20184709.0916001

基金项目:国家自然科学基金(Nos. 11602243, 11504300), 国家自然科学基金委员会/中国工程物理研究院"NSAF"联合基金(No.U1630125)和重庆市基础与前沿研究计划(No.cstc2015jcyjA50002)资助

收稿日期:2018-01-23

修改稿日期:2018-06-13

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吴小龑:中国工程物理研究院 流体物理研究所, 四川 绵阳 621900中国工程物理研究院 高能激光科学与技术重点实验室, 四川 绵阳 621900
刘国栋:中国工程物理研究院 流体物理研究所, 四川 绵阳 621900中国工程物理研究院 高能激光科学与技术重点实验室, 四川 绵阳 621900
李阳龙:中国工程物理研究院 流体物理研究所, 四川 绵阳 621900中国工程物理研究院 高能激光科学与技术重点实验室, 四川 绵阳 621900
李巍:中国工程物理研究院 流体物理研究所, 四川 绵阳 621900
吴凌远:中国工程物理研究院 流体物理研究所, 四川 绵阳 621900中国工程物理研究院 高能激光科学与技术重点实验室, 四川 绵阳 621900
付博:中国工程物理研究院 流体物理研究所, 四川 绵阳 621900
王伟平:中国工程物理研究院 流体物理研究所, 四川 绵阳 621900中国工程物理研究院 高能激光科学与技术重点实验室, 四川 绵阳 621900
张大勇:中国工程物理研究院 流体物理研究所, 四川 绵阳 621900
赵剑衡:中国工程物理研究院 流体物理研究所, 四川 绵阳 621900
陈平:西南大学 发光与实时分析教育部重点实验室, 物理科学与技术学院, 重庆 400715

联系人作者:吴小龑(wuxiaoyan1219@sina.cn)

备注:吴小龑(1988-), 男, 助理研究员, 博士, 主要研究方向为光电功能材料与器件. Email: wuxiaoyan1219@sina.cn

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引用该论文

WU Xiao-yan,LIU Guo-dong,LI Yang-long,LI Wei,WU Ling-yuan,FU Bo,WANG Wei-ping,ZHANG Da-yong,ZHAO Jian-heng,CHEN Ping. Enhancing Organic-inorganic Hybrid Perovskite Amplified Spontaneous Emission Based on the Gold Nanoparticles[J]. ACTA PHOTONICA SINICA, 2018, 47(9): 0916001

吴小龑,刘国栋,李阳龙,李巍,吴凌远,付博,王伟平,张大勇,赵剑衡,陈平. 基于金纳米粒子增强有机-无机杂化钙钛矿放大自发辐射[J]. 光子学报, 2018, 47(9): 0916001

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