Whispering Gallery Mode Resonances of Perovskite Nanoplatelets
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- 英文论文题名：Whispering Gallery Mode Resonances of Perovskite Nanoplatelets
- 论文作者：Guohui Li ; Weimin Kong ; Qiangbing Liang ; Xingqi Ji ; Ting Ji ; Yuying Hao ; Yanxia Cui
- 英文论文作者：Guohui Li ; Weimin Kong ; Qiangbing Liang ; Xingqi Ji ; Ting Ji ; Yuying Hao ; Yanxia Cui ; Key Laboratory of Advanced Transducers and Intelligent Control System (Ministry of Education) ; College of Physics and Optoelectronics ; Taiyuan University of Technology
- 年：2017
- 作者机构：Key Laboratory of Advanced Transducers and Intelligent Control System (Ministry of Education), College of Physics and Optoelectronics, Taiyuan University of Technology;
- 英文论文关键词：Perovskite ; Whispering gallery mode ; Nanoplatelet ; Vapor phase ; Resonance
- 会议召开时间：2017-05-27
- 会议录名称：第四届新型太阳能电池学术研讨会论文集
- 英文会议录名称：Abstract Book of the 4th Conference on New Generation Solar Cells
- 语种：英文
- 分类号：TB383.1
- 学会代码：ZKYQ
- 会议名称：第四届新型太阳能电池学术研讨会
- 会议地点：中国北京
- 主办单位：中国可再生能源学会光化学专业委员会
- 学会名称：中国科学院物理研究所清洁能源实验室
- 页数：1
- 文件大小：478k
- 原文格式：D
- 会议级别：全国
摘要
Organic-inorganic hybridized perovskites have attracted more and more attention due to their advantages such as high absorption coefficients, direct band-gap, long carrier lifetimes, balanced electron/hole mobility, etc.Nano-scaled perovskites, which possess naturally-formed optical feedback, can excite resonance under certain incident light and realize the precise light management as expected.In 2014, Ha et al.prepared lead halide perovskite nanoplatelets with regular triangular or hexagonal morphologies by vapor phase deposition techniques on mica plate [1].Later, they realized lasing based on the whispering-gallery modes at the near-infrared range using the prepared perovskite nanoplatelets [2].Here, we first synthesized lead iodide nanoplatelets with well-defined crystal boundaries and then successfully conversed the pre-grown lead iodide template into perovskite nanoplatelets by placing the substrate exactly above the methyl iodide amine powder in Ar gas condition with all valves of the quartz tube closed.By a continuous-wave laser at 325 nm, we measured the photoluminescence spectra of different perovskite nanoplatelets and observed the whispering gallery modes over the spontaneous emission band.
Organic-inorganic hybridized perovskites have attracted more and more attention due to their advantages such as high absorption coefficients, direct band-gap, long carrier lifetimes, balanced electron/hole mobility, etc.Nano-scaled perovskites, which possess naturally-formed optical feedback, can excite resonance under certain incident light and realize the precise light management as expected.In 2014, Ha et al.prepared lead halide perovskite nanoplatelets with regular triangular or hexagonal morphologies by vapor phase deposition techniques on mica plate [1].Later, they realized lasing based on the whispering-gallery modes at the near-infrared range using the prepared perovskite nanoplatelets [2].Here, we first synthesized lead iodide nanoplatelets with well-defined crystal boundaries and then successfully conversed the pre-grown lead iodide template into perovskite nanoplatelets by placing the substrate exactly above the methyl iodide amine powder in Ar gas condition with all valves of the quartz tube closed.By a continuous-wave laser at 325 nm, we measured the photoluminescence spectra of different perovskite nanoplatelets and observed the whispering gallery modes over the spontaneous emission band.
Organic-inorganic hybridized perovskites have attracted more and more attention due to their advantages such as high absorption coefficients, direct band-gap, long carrier lifetimes, balanced electron/hole mobility, etc.Nano-scaled perovskites, which possess naturally-formed optical feedback, can excite resonance under certain incident light and realize the precise light management as expected.In 2014, Ha et al.prepared lead halide perovskite nanoplatelets with regular triangular or hexagonal morphologies by vapor phase deposition techniques on mica plate [1].Later, they realized lasing based on the whispering-gallery modes at the near-infrared range using the prepared perovskite nanoplatelets [2].Here, we first synthesized lead iodide nanoplatelets with well-defined crystal boundaries and then successfully conversed the pre-grown lead iodide template into perovskite nanoplatelets by placing the substrate exactly above the methyl iodide amine powder in Ar gas condition with all valves of the quartz tube closed.By a continuous-wave laser at 325 nm, we measured the photoluminescence spectra of different perovskite nanoplatelets and observed the whispering gallery modes over the spontaneous emission band.
引文
[1].S.T.Ha,X.Liu,Q.Zhang,D.Giovanni,T.C.Sum,and Q.Xiong,Advanced Optical Materials,2014 2,838-844.
[2].Q.Zhang,S.T.Ha,X.Liu,T.C.Sum,and Q.Xiong,Nano letters,2014,14,5995-6001.
[2].Q.Zhang,S.T.Ha,X.Liu,T.C.Sum,and Q.Xiong,Nano letters,2014,14,5995-6001.