聚乙烯吡咯烷酮在合成AgInS量子点中作为稳定剂

Polyvinylpyrrolidone as a Stabilizer in Synthesis of AgInS Quantum Dots.

作者信息

Korepanov Oleg, Aleksandrova Olga, Firsov Dmitrii, Kalazhokov Zamir, Kirilenko Demid, Kozodaev Dmitriy, Matveev Vasilii, Mazing Dmitriy, Moshnikov Vyacheslav

机构信息

Micro- and Nanoelectronics Department, Saint Petersburg Electrotechnical University "LETI", 197022 Saint Petersburg, Russia.

Institute of Physics and Mathematics, Kabardino-Balkarian State University, n.a. Kh.M. Berbekov, 360004 Nalchik, Russia.

出版信息

Nanomaterials (Basel). 2022 Jul 9;12(14):2357. doi: 10.3390/nano12142357.

DOI:10.3390/nano12142357

PMID:35889581

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9321260/

Abstract

A synthesis protocol of polyvinylpyrrolidone-capped AgInS quantum dots in aqueous solution is reported. Nanoparticle morphology and chemical composition were studied by means of TEM, XRD, XPS, and FTIR. The obtained quantum dots were luminescent in the visible range. The photoluminescence intensity dependence on the polyvinylpyrrolidone amount was demonstrated. The wavelength of the emission maximum varied with changing the [Ag]:[In] molar ratio. The temperature dependence of the photoluminescence intensity of the polyvinylpyrrolidone-capped AgInS quantum dots was investigated within the temperature range of 11-294 K.

摘要

报道了一种在水溶液中合成聚乙烯吡咯烷酮包覆的AgInS量子点的方案。通过透射电子显微镜（TEM）、X射线衍射（XRD）、X射线光电子能谱（XPS）和傅里叶变换红外光谱（FTIR）研究了纳米颗粒的形态和化学成分。所获得的量子点在可见光范围内发光。证明了光致发光强度对聚乙烯吡咯烷酮用量的依赖性。发射最大值的波长随[Ag]:[In]摩尔比的变化而变化。在11 - 294 K的温度范围内研究了聚乙烯吡咯烷酮包覆的AgInS量子点光致发光强度的温度依赖性。