We investigated hybrid zero-dimensional core–shell CdSe/ZnS quantum dot (QD)/two-dimensional monolayer WSe₂ semiconductors with an Ag nanodisk (ND) for manipulating plasmonic-enhanced photoluminescence (PL) and color conversion efficiency. The absorption spectrum of the local surface plasmon resonance (LSPR) effectively overlaps with that of QDs or monolayer WSe₂ to considerably enhance PL. The broad absorption spectrum of the LSPR simultaneously overlapped with the emission spectrum of QDs and the absorption spectrum of excitons in WSe₂ to enhance the color conversion efficiency. The highest efficiency of color conversion from QDs to WSe₂ with Ag ND was 53%. In the future, hybrid QD/transition metal dichalcogenide light emitters could be further integrated with GaN-based white light-emitting diodes to manipulate the color temperature and expand the color gamut to develop a miniature white light-emitting diode.

中文翻译：

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量子点，单层WSe ₂和Ag纳米盘用于白光发光二极管的混合复合材料

我们研究了具有Ag纳米盘（ND）的混合零维核壳CdSe / ZnS量子点（QD）/二维单层WSe ₂半导体，以控制等离激元增强的光致发光（PL）和颜色转换效率。局部表面等离子体激元共振（LSPR）的吸收光谱与QD或单层WSe ₂的吸收光谱有效重叠，从而显着增强了PL。LSPR的宽吸收光谱同时与QDs的发射光谱和WSe ₂中激子的吸收光谱重叠，从而提高了颜色转换效率。从QD到WSe ₂的色彩转换效率最高Ag ND为53％。将来，混合式QD /过渡金属二卤化二亚锡发光体可进一步与GaN基白色发光二极管集成在一起，以控​​制色温并扩展色域，从而开发出微型白色发光二极管。