US 11,999,888 B2
Method for in-situ modification of mercury quantum dots in traditional thermal injection process
Jingjing Liu, Shanghai (CN); Jianlu Wang, Shanghai (CN); Tianle Guo, Shanghai (CN); Xinning Huang, Shanghai (CN); Xiangjian Meng, Shanghai (CN); Hong Shen, Shanghai (CN); Tie Lin, Shanghai (CN); and Junhao Chu, Shanghai (CN)
Assigned to Shanghai Institute of Technical Physics Chinese Academy of Sciences, Shanghai (CN)
Filed by SHANGHAI INSTITUTE OF TECHNICAL PHYSICS CHINESE ACADEMY OF SCIENCES, Shanghai (CN)
Filed on Nov. 9, 2022, as Appl. No. 18/053,790.
Prior Publication US 2023/0174863 A1, Jun. 8, 2023
Int. Cl. C09K 11/89 (2006.01); B82Y 20/00 (2011.01); B82Y 30/00 (2011.01); H10K 30/10 (2023.01)
CPC C09K 11/892 (2013.01) [B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); H10K 30/10 (2023.02)] 3 Claims
OG exemplary drawing
 
1. A method for in-situ modification of mercury quantum dots in a traditional thermal injection process, comprising:
step I: preparing a precursor solution: mixing a mercury halide and an oleylamine to obtain a mixed system, heating the mixed system to 100° C., and fully stirring to form a precursor solution;
step II: rapidly injecting trimethylsilyl tellurium into the precursor solution and reacting at a reaction temperature of 80-120° ° C. to obtain a mixed reaction system, wherein a molar ratio of tellurium, mercury, and oleylamine is 0.5:1:48;
step III: during reacting the trimethylsilyl tellurium and the precursor solution, injecting a polar solvent into the mixed reaction system, and performing an in-situ surface modification of quantum dots in a two-phase dynamic interface; and
step IV: cooling the mixed reaction system, and conducting separation and purification to obtain a medium wave infrared mercury quantum dot solution;
wherein the polar solvent in step III comprises one or more selected from the group consisting of methanol, acetonitrile, water, acetone, chloroform, and isopropanol.