Investigation of ligand exchange in thin films of PbS colloidal quantum dots with FTIR-spectroscopy

被引：0
|
作者：
Shuklov I.A. [1 ]
Dyomkin D.V. [1 ]
Konavicheva V.A. [1 ]
Popov V.S. [1 ,2 ]
Razumov V.F. [1 ,3 ,4 ]
机构：
[1] Moscow Institute of Physics and Technology, 9 Institutskiy per., Moscow Region, Dolgoprudny
[2] Orion R&P Association, JSC, 9 Kosinskaya st., Moscow
[3] Institute of Problems of Chemical Physics RAS, 1 Ac. Semenov Ave., Moscow Region, Chernogolovka
[4] Moscow State University, 51 Leninskie gory, Moscow
来源：
Applied Physics | 2022年 / 06期
关键词：
IR-Fourier spectroscopy; lead sulfide; ligand exchange; quantum dots;
D O I：
10.51368/1996-0948-2022-6-35-42
中图分类号：
学科分类号：
摘要：
Thin films were prepared from PbS colloidal quantum dots with oleate ligand shell and mean size of 7.3 nm. Rate of the ligand exchange by iodide-ions in thin film of PbS CQDs was studied for the first time in various solvents applying HATR-FTIR spectroscopy. Modification of ligand shells of PbS CQDs in thin films by interaction with some solvents and solutions of thioisocyanate wasinvestigated and analyzed. It was demonstrated the ability of formamide to replace oleate ligands in PbS CQDs. © 2022 Federal Informational-Analytical Center of the Defense Industry. All rights reserved.
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页码：35 / 42
页数：7
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