Investigation of Ligand Exchange in Thin Films of PbS Colloidal Quantum Dots with FTIR-Spectroscopy

IF 0.4 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Communications Technology and Electronics Pub Date : 2024-03-07 DOI:10.1134/s1064226923140152

I. A. Shuklov, D. V. Dyomkin, V. A. Konavicheva, V. S. Popov, V. F. Razumov

引用次数: 0

Abstract

To optimize photosensitive structures based on colloidal lead sulfide quantum dots, the rate and completeness of replacement in thin layers was studied using Fourier transform infrared spectroscopy on a multiple attenuated total internal reflection attachment. The rate of ligand replacement in a thin layer of colloidal lead sulfide quantum dots when replaced by iodide ion in different solvents was studied for the first time. A change in the composition of the shells of PbS nanoparticles under the influence of a number of solvents and when replacing them with thiocyanate ions was shown. For the first time, the replacement of the oleate ligand shell with pure formamide has been established.

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利用傅立叶变换红外光谱研究 PbS 胶体量子点薄膜中的配体交换

摘要为了优化基于胶体硫化铅量子点的光敏结构，我们在多重衰减全内反射附件上使用傅立叶变换红外光谱法研究了薄层中配体的置换速率和完整性。首次研究了胶体硫化铅量子点薄层在不同溶剂中被碘离子置换时的配体置换率。结果表明，在多种溶剂的影响下以及用硫氰酸根离子取代时，PbS 纳米粒子外壳的组成发生了变化。首次确定了用纯甲酰胺取代油酸配体外壳的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Communications Technology and Electronics 工程技术-电信学

CiteScore

1.00

自引率

20.00%

发文量

170

审稿时长

10.5 months

期刊介绍： Journal of Communications Technology and Electronics is a journal that publishes articles on a broad spectrum of theoretical, fundamental, and applied issues of radio engineering, communication, and electron physics. It publishes original articles from the leading scientific and research centers. The journal covers all essential branches of electromagnetics, wave propagation theory, signal processing, transmission lines, telecommunications, physics of semiconductors, and physical processes in electron devices, as well as applications in biology, medicine, microelectronics, nanoelectronics, electron and ion emission, etc.