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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >Controlled self-assembly of CdTe quantum dots into different microscale dendrite structures by using proteins as templates
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Controlled self-assembly of CdTe quantum dots into different microscale dendrite structures by using proteins as templates

机译:以蛋白质为模板,将CdTe量子点自组装成不同的微尺度枝晶结构

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摘要

The controlled self-assembly of quantum dots (QDs) into complex microscale structures is crucial for the study of their collective properties. Here, we demonstrate that diverse structured microscale dendrites could be formed on glass surfaces assembled from CdTe QDs by using ten different proteins as templates, through evaporation-induced self-assembly (EISA), The proteins could self-assemble into dendritic microstructures by solvent evaporation from solutions, and the dispersed CdTe QDs could grow into various dendritic patterns on the micropatterns of proteins, as a result of a simple combination of CdTe QDs with proteins. The structures of the CdTe dendrites can be tailored by controlling the pH value of the solvent of the protein or the addition of metal ions. Polarization dependent experiments demonstrate that the formed CdTe dendrites possess the properties of crystallinity and birefringence. This work opens a new, convenient avenue for the manipulation of the self-assembly of CdTe QDs into different dendritic microstructures.
机译:量子点(QDs)受控的自组装成复杂的微米级结构对于研究其集体性质至关重要。在这里,我们证明通过使用十种不同的蛋白质作为模板,通过蒸发诱导的自组装(EISA),可以在CdTe QD组装的玻璃表面上形成多种结构化的微米级树枝状晶体,这些蛋白质可以通过溶剂蒸发而自组装成树枝状微结构。由于溶液中CdTe QD与蛋白质的简单结合,因此分散的CdTe QD可以在蛋白质的微图案上生长成各种树突状图案。可以通过控制蛋白质溶剂的pH值或添加金属离子来定制CdTe树突的结构。偏振相关实验表明,形成的CdTe树突具有结晶性和双折射特性。这项工作为将CdTe QD自组装成不同的树枝状微结构开辟了一条方便的新途径。

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