Over the past few decades, I-III-VI quantum dots (QDs) have attracted considerable attention due to their large Stokes shifts, good eco-friendliness, and wide tunable emissions. In this work, a facile microwave-assisted aqueous route using glutathione (GSH) and citric acid (CA) as dual stabilizers is introduced to synthesize AgInGaS/ZnS (AIGS/ZnS) core/shell QDs. An exceptional photoluminescence quantum yield (PL QY) as high as 79% is successfully achieved, boosting the best performance of water-dispersible AIGS QDs. By varying the Ag/Ga ratio, the PL peak wavelength can be tuned from 547 to 616 nm, and luminescent hydrogel films with different colors are obtained by embedding AIGS/ZnS QDs in polyacrylamide/poly-vinyl alcohol (PAAm/PVA) hydrogels. The white light-emitting diode (WLED) with a high color rendering index (CRI) of 92.1 (R₉=92.0) and a correlated color temperature (CCT) of 3022 K is fabricated using QDs-PAAm/PVA hydrogel films in combination with a blue InGaN LED chip, indicating that the as-prepared QDs are competitive color-conversion materials for WLEDs.

在过去的几十年里，I-III-VI 量子点 (QD) 因其大的斯托克斯位移、良好的生态友好性和宽的可调发射而引起了相当大的关注。在这项工作中，引入了一种使用谷胱甘肽 (GSH) 和柠檬酸 (CA) 作为双重稳定剂的简便微波辅助水相路线来合成 AgInGaS/ZnS (AIGS/ZnS) 核/壳量子点。成功实现了高达 79% 的卓越光致发光量子产率 (PL QY)，提升了水分散性 AIGS 量子点的最佳性能。通过改变 Ag/Ga 比，PL 峰波长可以从 547 nm 调整到 616 nm，通过将 AIGS/ZnS 量子点嵌入聚丙烯酰胺/聚乙烯醇 (PAAm/PVA) 水凝胶中获得不同颜色的发光水凝胶薄膜。白色发光二极管 (WLED) 的显色指数 (CRI) 高达 92.1 (R ₉ =92.0) 和 3022 K 的相关色温 (CCT) 是使用 QDs-PAAm/PVA 水凝胶薄膜结合蓝色 InGaN LED 芯片制造的，表明所制备的 QDs 是具有竞争力的 WLED 颜色转换材料.