原位转化法制备 Ag SbS 量子点的近红外发光
Near-Infrared Luminescent Ternary Ag SbS Quantum Dots by in situ Conversion of Ag Nanocrystals with Sb(C H COOS).
机构信息
Beijing Key Laboratory of Construction-Tailorable, Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China.
出版信息
Chemistry. 2018 Dec 12;24(70):18643-18647. doi: 10.1002/chem.201804800. Epub 2018 Nov 26.
Differently from the normal three single precursor method to produce colloidal ternary quantum dots (QDs), herein ternary Ag SbS quantum dots (QDs) with efficient near-infrared (NIR) luminescence have been prepared by a new facile in situ conversion of Ag nanocrystals (NCs) with a binary Sb/S organic precursor Sb(C H COOS) under low temperature. The unprecedented construction evolution from Ag NCs to Ag SbS /Ag hetero-structure and final monodisperse Ag SbS QDs has been demonstrated. These novel Ag SbS QDs exhibit efficient NIR emission at ≈1263 nm and possess high colloidal stability.
与传统的三源前驱体法制备胶体三元量子点（QDs）不同，本文采用一种新的简便方法，即在低温下，用二元 Sb/S 有机前驱体 Sb(C H COOS) 将 Ag 纳米晶（NCs）原位转化，制备出具有高效近红外（NIR）发光性能的三元 AgSbS 量子点（QDs）。Ag NCs 到 AgSbS/Ag 异质结构，最终到单分散 AgSbS QDs 的前所未有的构建演变过程得到了证明。这些新型 AgSbS QDs 在 ≈1263nm 处表现出高效的近红外发射，并且具有高胶体稳定性。
Zotero 插件