摘要
利用一锅非注射合成法制备了Cu掺杂Zn-In-S/Zn S核/壳量子点白光LED(WLED),研究了量子点壳层厚度对其发光性能的影响。对比了几组绿光和橙光量子点比例不同的量子点WLED,测量了它们的国际照明委员会(CIE)色坐标、显色指数(CRI)、相关色温(CCT)和流明效率(LE)等各项性能参数,发现厚壳Cu∶Zn-In-S/Zn S核/壳量子点WLED的流明效率和显色指数均高于薄壳量子点WLED,且随着壳层厚度的增加,量子点的稳定性增强,流明效率增高。
In this study,Cu-doped Zn-In-S/Zn S core/shell quantum dot(QD)white-light-emitting diodes(WLEDs)are prepared,and the influence of the shell thickness on their properties is investigated.With several groups of QD WLEDs,the QD ratio of green and orange light is different to measure the properties of the International Commission on illumination(CIE)color coordinates,color rendering index(CRI),correlated color temperature(CCT),and luminous efficiency(LE).It is found that the LE and CRI of thick Cu∶Zn-In-S/Zn S core/shell QD WLEDs are higher than those of the thin Cu∶Zn-In-S/Zn S core/shell QD WLEDs.Additionally,when the thickness of the shell increases,the stability of QDs is enhanced and the luminous efficiency is increased.
作者
王晓琦
王聪
Wang Xiaoqi;Wang Cong(Basic Department,Yingkou Institute of Technology,Yingkou,Liaoning 115014,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2021年第17期379-384,共6页
Laser & Optoelectronics Progress
基金
辽宁省博士科研启动基金计划项目(2020-BS-287)
营口理工学院高层次人才科研启动项目(YJRC202027)。
