Song Xuerong, Qin Yue, Wang Qian, Ning Jiajia
Key Laboratory of Physics and Technology for Advanced Batteries, Ministry of Education, College of Physics, Jilin University, Qianjin Street No. 2699, Changchun 130012, China.
Inorg Chem. 2024 Sep 16;63(37):17100-17107. doi: 10.1021/acs.inorgchem.4c02738. Epub 2024 Sep 4.
Alloying provides the opportunity to widen the physical and chemical properties of quantum dots (QDs); however, the precise controlled composition of alloyed QDs is still a challenge. In this work, a few quaternary alloyed zinc chalcogenide magic-sized nanoclusters (MSCs) were synthesized using the active chalcogen precursors of tri(dimethylamine)phosphine chalcogen, such as ZnSSeTe (MSCs-348), ZnSSeTe (MSCs-350), ZnSSeTe (MSCs-349), and ZnSSeTe (MSCs-355) MSCs. The composition of alloyed zinc chalcogenide MSCs was tuned with the different amounts of added chalcogen precursors. Finally, the produced alloyed zinc chalcogenide MSCs can be used as precursors to synthesize alloyed zinc chalcogenide QDs, and the composition of zinc chalcogenide QDs can be adjusted with different alloyed MSCs. This work provides methods to alloy MSCs with controlled composition, providing efficient precursors for alloyed QDs.
合金化提供了拓宽量子点（QDs）物理和化学性质的机会；然而，精确控制合金化量子点的组成仍然是一项挑战。在这项工作中，使用三（二甲胺）膦硫属元素化物等活性硫属元素前驱体合成了一些四元合金化硫属锌化物魔法尺寸纳米团簇（MSCs），如ZnSSeTe（MSCs - 348）、ZnSSeTe（MSCs - 350）、ZnSSeTe（MSCs - 349）和ZnSSeTe（MSCs - 355）MSCs。通过添加不同量的硫属元素前驱体来调节合金化硫属锌化物MSCs的组成。最后，所制备的合金化硫属锌化物MSCs可作为前驱体用于合成合金化硫属锌化物量子点，并且硫属锌化物量子点的组成可以通过不同的合金化MSCs进行调节。这项工作提供了制备具有可控组成的合金化MSCs的方法，为合金化量子点提供了有效的前驱体。
