| 镉掺杂氧化锌纳米晶禁带宽度的尺寸效应和掺杂效应研究 |
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| 引用本文： | 张海啸,杨跃涛,刘晓峻. 镉掺杂氧化锌纳米晶禁带宽度的尺寸效应和掺杂效应研究[J]. 化学物理学报, 2018, 31(2): 197-202 |
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| 作者姓名： | 张海啸 杨跃涛 刘晓峻 |
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| 作者单位： | 南京大学近代声学教育部重点实验室, 声学研究所, 南京 210093,南京大学近代声学教育部重点实验室, 声学研究所, 南京 210093,南京大学近代声学教育部重点实验室, 声学研究所, 南京 210093 |
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| 基金项目： | This work was supported by the National Basic Research Program of China (No.2012CB921504) and the National Natural Science Foundation of China (No.11074127). |
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| 摘 要： |
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| 收稿时间： | 2017-09-28 |
| 修稿时间： | 2018-01-09 |
Study of Cadmium-Doped Zinc Oxide Nanocrystals with Composition and Size Dependent Band Gaps |
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| Hai-xiao Zhang,Yue-tao Yang and Xiao-jun Liu. Study of Cadmium-Doped Zinc Oxide Nanocrystals with Composition and Size Dependent Band Gaps[J]. Chinese Journal of Chemical Physics, 2018, 31(2): 197-202 |
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| Authors: | Hai-xiao Zhang Yue-tao Yang Xiao-jun Liu |
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| Affiliation: | Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Nanjing University, Nanjing 210093, China,Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Nanjing University, Nanjing 210093, China and Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Nanjing University, Nanjing 210093, China |
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| Abstract: | Cadmium-doped zinc oxide nanocrystals in the quantum confinement region have been firstly synthesized by a fast and facile sonochemical method.The alloyed structure of the nanocrystals is confirmed by X-ray diffraction,transmission electron microscopy,and infrared analysis.With the increase of cadmium to zinc molar ratio from 0 to 2.0,the crystallite sizes of the samples decrease from 5.1 nm to 2.6 nm,and the band gaps of the samples show a red shift then a blue shift,and a red shift again.The variations of band gaps of the samples can be interpreted by the crystallite size and the composition.It is found that both the non-thermal equilibrium environment established in the sonochemical reaction and the coordination ability of triethylene glycol solvent play crucial roles in the current preparation. |
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| Keywords: | Alloyed nanocrystal Structure Spectroscopy Sonochemistry |
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