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合金化晶体CdSeS半导体纳米材料——一项固态镉核磁共振研究。

Alloyed Crystalline CdSeS Semiconductive Nanomaterials - A Solid State Cd NMR Study.

作者信息

Xing Baoyan, Ge Sai, Zhao Jianguo, Yang Hui, Song Jie, Geng Yu, Qiao Yuying, Gu Ling, Han Peide, Ma Guibin

机构信息

College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.

Institute of Carbon Materials Science, Shanxi Datong University, Datong, 037009, China.

出版信息

ChemistryOpen. 2020 Oct 12;9(10):1018-1026. doi: 10.1002/open.202000216. eCollection 2020 Oct.

DOI:10.1002/open.202000216
PMID:33072471
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7549000/
Abstract

Solid-state NMR analysis on wurtzite alloyed CdSeS crystalline nanoparticles and nanobelts provides evidence that the Cd NMR chemical shift is not affected by the varying sizes of nanoparticles, but is sensitive to the S/Se anion molar ratios. A linear correlation is observed between Cd NMR chemical shifts and the sulfur component for the alloyed CdSeS (0<x<1) system both in nanoparticles and nanobelts (δ=169.71⋅X+529.21). Based on this correlation, a rapid and applied approach has been developed to determine the composition of the alloyed nanoscalar materials utilizing Cd NMR spectroscopy. The observed results from this system confirm that one can use Cd NMR spectroscopy not only to determine the composition but also the phase separation of nanomaterial semiconductors without destruction of the sample structures. In addition, some observed correlations are discussed in detail.

摘要

对纤锌矿型合金CdSeS晶体纳米颗粒和纳米带进行的固态核磁共振分析表明，Cd核磁共振化学位移不受纳米颗粒尺寸变化的影响，但对S/Se阴离子摩尔比敏感。在纳米颗粒和纳米带的合金CdSeS（0<x<1）体系中，观察到Cd核磁共振化学位移与硫成分之间存在线性相关性（δ=169.71⋅X+529.21）。基于这种相关性，已开发出一种快速且实用的方法，利用Cd核磁共振光谱法来确定合金纳米级材料的组成。该体系的观察结果证实，人们不仅可以使用Cd核磁共振光谱法来确定组成，还可以在不破坏样品结构的情况下确定纳米材料半导体的相分离。此外，还详细讨论了一些观察到的相关性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/908a4ac9af72/OPEN-9-1018-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/db4f19d83113/OPEN-9-1018-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/8ccbaa4d923c/OPEN-9-1018-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/908a4ac9af72/OPEN-9-1018-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/db4f19d83113/OPEN-9-1018-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/651e26e7ebaa/OPEN-9-1018-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/252e8b857b83/OPEN-9-1018-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/c470026be0c8/OPEN-9-1018-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/09e7378f653e/OPEN-9-1018-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/8ccbaa4d923c/OPEN-9-1018-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9860/7549000/908a4ac9af72/OPEN-9-1018-g009.jpg

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