Colloidal Nanocrystals Embedded in Macrocrystals: Methods and Applications.
Colloidal Nanocrystals Embedded in Macrocrystals: Methods and Applications.
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DOI：
10.1021/acs.jpclett.6b01699
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发表时间：
2016-10
期刊：
影响因子：
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通讯作者：
M. Adam;N. Gaponik;A. Eychmüller;T. Erdem;Z. Soran-Erdem;H. Demir
中科院分区：
文献类型：
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作者：
M. Adam;N. Gaponik;A. Eychmüller;T. Erdem;Z. Soran-Erdem;H. Demir
胶体半导体纳米晶体作为光谱可调和明亮的荧光团用于颜色转换和富集固体，已经获得了极大的兴趣。然而，它们在处理溶液时受到限制，并且在固体薄膜中效率下降。作为一种补救措施，将它们嵌入晶体基质中，在保持高量子产率的同时，具有优越的光稳定性、热稳定性和化学耐久性。本文综述了纳米晶在大晶体上加载的三种基本方法，即相对缓慢的直接包埋法，以及真空辅助和液-液扩散辅助的加速结晶方法。我们讨论了所得到的复合材料的光物理性质，并介绍了它们在发光二极管中的应用，以及它们在等离子体和激子学中的应用。最后，对这些材料的科学技术进行了展望。
Colloidal semiconductor nanocrystals have gained substantial interest as spectrally tunable and bright fluorophores for color conversion and enrichment solids. However, they suffer from limitations in processing their solutions as well as efficiency degradation in solid films. As a remedy, embedding them into crystalline host matrixes has stepped forward for superior photostability, thermal stability, and chemical durability while simultaneously sustaining high quantum yields. Here, we review three basic methods for loading the macrocrystals with nanocrystals, namely relatively slow direct embedding, as well as accelerated methods of vacuum-assisted and liquid-liquid diffusion-assisted crystallization. We discuss photophysical properties of the resulting composites and present their application in light-emitting diodes as well as their utilization for plasmonics and excitonics. Finally, we present a future outlook for the science and technology of these materials.