Fabrication of white light-emitting diodes based on solvothermally synthesized copper indium sulfide quantum dots as color converters
Fabrication of white light-emitting diodes based on solvothermally synthesized copper indium sulfide quantum dots as color converters
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DOI：
10.1063/1.4711019
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发表时间：
2012-04-30
影响因子：
4
通讯作者：
Yang, Heesun
中科院分区：
文献类型：
--
作者：
Song, Woo-Seuk;Yang, Heesun
报道了一种简便、规模化的铜铟硫（CIS）量子点的溶剂热合成方法及其在白色发光二极管（LED）制备中的应用。取决于CIS QD生长时间为2小时与5小时，CIS/ZnS的核/壳结构的QD表现出黄橙色的可调谐发射，具有55%-91%的优异量子产率。采用CIS（2 h）/ZnS量子点作为蓝黄转换器，实现了白色量子点发光二极管。此外，制造具有黄色和橙子QD的混合的白色QD-LED以通过光谱扩展来改善显色性，并且评估其电致发光性质。(C)2012年美国物理学会。[http：//dx.doi.org/10.1063/1.4711019]
A facile, large-scalable solvothermal synthesis of copper indium sulfide (CIS) quantum dots (QDs) and their application to the fabrication of QD-based white light-emitting diodes (LEDs) are reported. Depending on CIS QD growth time of 2 versus 5 h, the core/shell structured QDs of CIS/ZnS exhibit tunable emissions of yellow-orange with excellent quantum yields of 55%-91%. A white QD-LED is realized by applying CIS (2 h)/ZnS QD as a blue-to-yellow color converter. Furthermore, a white QD-LED having a blend of yellow and orange QDs is fabricated to improve a color rendering property through spectral extension, and its electroluminescent properties are evaluated. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4711019]