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Enhanced spontaneous emission in semiconductor nanocrystal solids using resonant energy transfer for integrated devices

机译:使用谐振能量转移来增强半导体纳米晶体固体的自发发射,用于集成装置

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In conclusion, using resonant nonradiative Förster energy transfer, we demonstrated the spontaneous emission enhancement of CdSe/ZnS core/shell nanocrystal solids integrated on near-UV InGaN/GaN light emitting diode for white light generation. As revealed both by their steady state and time resolved spectroscopy measurements, we observed a relative quantum efficiency enhancement for the acceptor nanocrystal quantum dots in the energy gradient structure by comparing with the monodisperse phase. As a result of the nonradiative energy transfer facilitated in the energy gradient structure, recycling trapped excitons into nanocrystal quantum dots led to the enhancement of quantum efficiency.
机译:总之,利用共振非裂缝能量转移,我们证明了用于白光发电的近UV Ingan / GaN发光二极管上的Cdse / ZnS核/壳纳米晶体固体的自发排放增强。如通过其稳态和时间解决的光谱测量来揭示,我们通过与单分散相比观察到能量梯度结构中受体纳米晶体点的相对量子效率提高。由于在能量梯度结构中促进的非接种能量转移,将被困的激子回收到纳米晶体点的纳米晶圆导致量子效率的增强。

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