The off-stoichiometry effect on the optical properties of water-soluble copper indium zinc sulfide quantum dots | |
Xu, Yanqiao1; Chen, Ting1,2; Hu, Xiaobo1; Jiang, Wan2,3; Wang, Lianjun2,3; Jiang, Weihui1,2; Liu, Jianmin2 | |
刊名 | Journal of Colloid and Interface Science |
2017 | |
卷号 | 496页码:479-486 |
ISSN号 | 00219797 |
DOI | 10.1016/j.jcis.2017.02.049 |
英文摘要 | Cu[sbnd]In[sbnd]Zn[sbnd]S quantum dots (CIZS QDs) were prepared via reflux method in aqueous solution using CuCl2·2H2O, InCl3·4H2O, Zn(OAc)2·2H2O and Na2S·9H2O as raw materials, L-glutathione (GSH) and sodium citrate (SC) as stabilizing agents, respectively. The effects of off-stoichiometry (Cu/In and Zn/Cu ratios) on the crystal structure and morphology were systematically studied by means of X-ray diffraction (XRD) and high-resolution transmission electron microscope (HRTEM), and the relative optical properties were also investigated by absorption and fluorescence spectra. The as-prepared water-dispersible CIZS QDs were around 3–4 nm and possessed the tetragonal chalcopyrite crystal structure. The photoluminescence (PL) intensity of QDs was significantly increased with decreasing the Cu/In ratio. Compared with the Cu/In ratio variation, changing Zn/Cu ratio was an effective strategy to realize a more uniform irradiation and a wide range of emission wavelength tunability. © 2017 Elsevier Inc. |
内容类型 | 期刊论文 |
源URL | [http://ir.sic.ac.cn/handle/331005/25915] |
专题 | 中国科学院上海硅酸盐研究所 |
作者单位 | 1.School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen; 333001, China; 2.National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen; 333001, China; 3.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai; 201620, China |
推荐引用方式 GB/T 7714 | Xu, Yanqiao,Chen, Ting,Hu, Xiaobo,et al. The off-stoichiometry effect on the optical properties of water-soluble copper indium zinc sulfide quantum dots[J]. Journal of Colloid and Interface Science,2017,496:479-486. |
APA | Xu, Yanqiao.,Chen, Ting.,Hu, Xiaobo.,Jiang, Wan.,Wang, Lianjun.,...&Liu, Jianmin.(2017).The off-stoichiometry effect on the optical properties of water-soluble copper indium zinc sulfide quantum dots.Journal of Colloid and Interface Science,496,479-486. |
MLA | Xu, Yanqiao,et al."The off-stoichiometry effect on the optical properties of water-soluble copper indium zinc sulfide quantum dots".Journal of Colloid and Interface Science 496(2017):479-486. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论