Optical properties of water-soluble Co2+:ZnS semiconductor nanocrystals synthesized by a hydrothermal process
作者： Lingyun Liu , Lin Yang , Yunti Pu , Dingquan Xiao , Jianguo Zhu
DOI: 10.1016/J.MATLET.2011.08.025
关键词:
摘要: Abstract Water-soluble ZnS:Co 2+ nanocrystals (NCs) were synthesized by a low temperature hydrothermal process using 3-mercaptopropionic acid (MPA) as capping agent and the influence of doping on optical properties NCs was investigated. It found that are highly crystalline show zinc blende structure with an average particle size about 7 nm. The lattice constant decreases slightly introduction Co . dopants well doped into NCs, confirmed X-ray photoelectron spectroscopy(XPS) 4 A 2 (F) → T 1 (P) transition detected from UV–vis absorption spectra. edge is blue-shifted compared bulk ZnS, indicating quantum confinement effect. PL intensity shows maximum value when Fe-doping concentration 0.5 at.%.
elsevier.com
sci-hub.se 参考文章(23)
Tzong-Yow Tsai, Milton Birnbaum, Co2+:ZnS and Co2+:ZnSe saturable absorber Q switches Journal of Applied Physics. ,vol. 87, pp. 25- 29 ,(2000) , 10.1063/1.371821
N. Murase, R. Jagannathan, Y. Kanematsu, M. Watanabe, A. Kurita, K. Hirata, T. Yazawa, T. Kushida, Fluorescence and EPR Characteristics of Mn2+-Doped ZnS Nanocrystals Prepared by Aqueous Colloidal Method Journal of Physical Chemistry B. ,vol. 103, pp. 754- 760 ,(1999) , 10.1021/JP9828179
P Thangadurai, S Balaji, P T Manoharan, Surface modification of CdS quantum dots using thiols-structural and photophysical studies. Nanotechnology. ,vol. 19, pp. 435708- ,(2008) , 10.1088/0957-4484/19/43/435708
Xi-Bin Yu, Li-Hong Mao, Zhang-Fan, Liang-Zhun Yang, Shi-Ping Yang, The synthesis of ZnS:Mn2+ nano-particles by solid-state method at low temperature and their photoluminescence characteristics Materials Letters. ,vol. 58, pp. 3661- 3664 ,(2004) , 10.1016/J.MATLET.2004.05.085
Wei Chen, Jan-Olle Malm, Valery Zwiller, Yining Huang, Shuman Liu, Reine Wallenberg, Jan-Olov Bovin, Lars Samuelson, Energy structure and fluorescence of Eu2+ in ZnS : Eu nanoparticles Physical Review B. ,vol. 61, pp. 11021- 11024 ,(2000) , 10.1103/PHYSREVB.61.11021
S. Sambasivam, D. Paul Joseph, J.G. Lin, C. Venkateswaran, Doping induced magnetism in Co–ZnS nanoparticles Journal of Solid State Chemistry. ,vol. 182, pp. 2598- 2601 ,(2009) , 10.1016/J.JSSC.2009.07.015
P. Yang, M. Lü, D. Xü, D. Yuan, C. Song, G. Zhou, The effect of Co2+ and Co3+ on photoluminescence characteristics of ZnS nanocrystallines Journal of Physics and Chemistry of Solids. ,vol. 62, pp. 1181- 1184 ,(2001) , 10.1016/S0022-3697(00)00287-0
Lun Ma, Wei Chen, ZnS:Cu,Co water-soluble afterglow nanoparticles: synthesis, luminescence and potential applications Nanotechnology. ,vol. 21, pp. 385604- ,(2010) , 10.1088/0957-4484/21/38/385604
Xiaosheng Fang, Limin Wu, Linfeng Hu, ZnS Nanostructure Arrays: A Developing Material Star Advanced Materials. ,vol. 23, pp. 585- 598 ,(2011) , 10.1002/ADMA.201003624
Xuanjie Liu, Xun Cai, Jifang Mao, Chengyu Jin, ZnS/Ag/ZnS nano-multilayer films for transparent electrodes in flat display application Applied Surface Science. ,vol. 183, pp. 103- 110 ,(2001) , 10.1016/S0169-4332(01)00570-0