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Quantum Dot/J-aggregate blended films for light harvesting and energy transfer

机译:用于光收集和能量转移的Quantum Dot / J-aggregated混合膜

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摘要

This paper describes the solution preparation of thin films composed of quantum dots and thiacyanine J-aggregates, making use of the size tunable emission of quantum dots and the narrow, intense absorption of J-aggregates in the solid state. These blended films exhibit 90% energy transfer efficiency from J-aggregates to quantum dots and can uniformly cover a large area. Because the presence of the J-aggregates enhances the QD photoluminescence intensity by 2.5-fold over QDs alone, these solid state materials may be useful in downconversion applications or in fundamental investigations of light harvesting.
机译:本文描述了由量子点和硫氰酸J聚集体组成的薄膜的溶液制备方法,利用了量子点的尺寸可调发射和固态J聚集体的窄且强烈的吸收。这些共混膜从J聚集体到量子点的能量转移效率达到90%,并且可以均匀覆盖大面积。因为J聚集体的存在使QD的光致发光强度比单独的QD增强了2.5倍,所以这些固态材料可用于下转换应用或光收集的基础研究。

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