Electron energy transfer effect in Au NS/CH(3)NH(3)PbI(3-x)Cl(x')heterostructures via localized surface plasmon resonance coupling

Cai Chunfeng; Zhai Jizhi; Bi Gang; Wu Huizhen

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Electron energy transfer effect in Au NS/CH(3)NH(3)PbI(3-x)Cl(x')heterostructures via localized surface plasmon resonance coupling

机译：通过局部表面等离子体共振耦合在Au NS / CH（3）NH（3）PbI（3-x）Cl（x'）异质结构中的电子能量转移效应

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Localized surface plasmon resonance coupling effects (LSPR) have attracted much attention due to their interesting properties. This Letter demonstrates significant photoluminescence (PL) enhancement in the Au NS/CH3NH3PbI3-xClx heterostructures via the LSPR coupling. The observed PL emission enhancement is mainly attributed to the hot electron energy transfer effect related to the LSPR coupling. For the energy transfer effect, photo-generated electrons will be directly extracted into Au SPs, rather than relaxed into exciton states. This energy transfer process is much faster than the diffusion and relaxation time of free electrons, and may provide new ideas on the design of high-efficiency solar cells and ultrafast response photodetectors. (C) 2016 Optical Society of America

机译：局部表面等离振子共振耦合效应（LSPR）由于其有趣的特性而引起了很多关注。这封信证明了通过LSPR偶联，Au NS / CH3NH3PbI3-xClx异质结构的光致发光（PL）显着增强。观察到的PL发射增强主要归因于与LSPR耦合有关的热电子能量转移效应。对于能量转移效果，光生电子将直接提取到Au SPs中，而不是松弛成激子态。这种能量转移过程比自由电子的扩散和弛豫时间快得多，并且可以为高效太阳能电池和超快速响应光电探测器的设计提供新思路。（C）2016美国眼镜学会

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《Optics Letters》 |2016年第18期|共4页
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Cai Chunfeng; Zhai Jizhi; Bi Gang; Wu Huizhen;
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1. Improving the interfacial contact between CH3NH3PbI3-xClx and Au by LiTFSI solution treatment for efficient photoelectric devices [J] . Xiang Xia, Hongcui Li, Yanhua Li, 能源化学：英文版 . 2015,第006期
2. Electron energy transfer effect in Au NS/CH(3)NH(3)PbI(3-x)Cl(x')heterostructures via localized surface plasmon resonance coupling [J] . Cai Chunfeng, Zhai Jizhi, Bi Gang, Optics Letters . 2016,第18期

机译：通过局部表面等离子体共振耦合在Au NS / CH（3）NH（3）PbI（3-x）Cl（x'）异质结构中的电子能量转移效应
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Electron energy transfer effect in Au NS/CH(3)NH(3)PbI(3-x)Cl(x')heterostructures via localized surface plasmon resonance coupling

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