A spectrally narrow band edge emission is generated in the green region from cadmium-free quantum dots comprised of silver indium gallium sulfide coated by gallium sulfide shells. The thickness of the gallium sulfide shell is increased by using gallium tris(diethyldithiocarbamate) as a supplementary precursor showing a strong adhesion with the quantum dot cores. Photoluminescence intensity and spectral shape of the core/shell quantum dots with the thicker shells are unchanged after 90 days.

中文翻译：

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通过添加二乙基二硫代氨基甲酸镓增强具有较厚壳的 Ag-In-Ga-S/GaSx 核/壳量子点的光致发光稳定性

无镉量子点在绿色区域产生光谱窄带边缘发射，量子点由硫化镓壳包覆的银铟镓硫化物组成。通过使用三（二乙基二硫代氨基甲酸）镓作为补充前驱体，增加了硫化镓壳的厚度，显示出与量子点核的强附着力。具有较厚壳的核/壳量子点的光致发光强度和光谱形状在 90 天后没有变化。