Inorganic surface passivation of CdS nanocrystals resulting in strong luminescence

被引：0
|
作者：
Nisha, K.D. [1 ]
Navaneethan, M. [2 ]
Ponnusamy, S. [2 ]
Muthamizhchelvan, C. [2 ]
机构：
[1] Department of Physics, Asan Memorial College of Engineering and Technology, Chengalpattu, 603105 Tamil Nadu, India
[2] Department of Physics, SRM University, Kattankulathur 603203, Kancheepuram (Dt.), Tamil Nadu, India
来源：
Journal of Alloys and Compounds | 2009年 / 486卷 / 1-2期
关键词：
Cadmium sulphide (CdS) nanocrystals have been synthesized by wet chemical route using cadmium chloride; thiourea and sodium hydroxide in ethanol solution. Triethylamine (TEA) is used as a capping agent. The products were characterized by high resolution transmission electron microscope (HRTEM); powder X-ray diffraction (XRD) pattern; UV-visible; FT-Raman; thermal and photoluminescence studies. The spherical morphology of the TEA capped CdS has been observed by TEM. Broadening of the XRD peaks and asymmetrical broadening of longitudinal optical (LO) modes in FT-Raman indicated the nanocrystal formation. Strong photoluminescence was observed in TEA capped nanocrystals. UV spectrum showed blue shift due to size quantization effect. The high temperature behavior of CdS nanocrystallites has been studied using thermal analyses. © 2009 Elsevier B.V. All rights reserved;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
页码：844 / 847
相关论文
共 50 条
  • [41] Blue luminescence from (CdS)ZnS core-shell nanocrystals
    Steckel, JS
    Zimmer, JP
    Coe-Sullivan, S
    Stott, NE
    Bulovic, V
    Bawendi, MG
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (16) : 2154 - 2158
  • [42] White luminescence from CdS nanocrystals under the blue light excitation
    Li, Bo
    Zhang, Xiaosong
    Li, Lan
    Li, Mengzhen
    Xu, Jianping
    Hong, Yuan
    JOURNAL OF SOLID STATE CHEMISTRY, 2014, 214 : 108 - 111
  • [43] LUMINESCENCE OF SURFACE-POLARITONS IN CDS CRYSTALS
    TRAVNIKOV, VV
    JETP LETTERS, 1986, 44 (03) : 169 - 173
  • [44] Luminescence related processes in semiconductor nanocrystals - The strong confinement regime
    Jungnickel, V
    Henneberger, F
    JOURNAL OF LUMINESCENCE, 1996, 70 : 238 - 252
  • [45] EFFECTS OF CHEMICAL SURFACE PASSIVATION ON THE LUMINESCENCE PROPERTIES OF GAAS
    SKROMME, BJ
    SANDROFF, CJ
    YABLONOVITCH, E
    GMITTER, TJ
    JOURNAL OF ELECTRONIC MATERIALS, 1987, 16 (04) : A30 - A30
  • [46] Sensitive Surface States and their Passivation Mechanism in CdS Quantum Dots
    Vempati, Sesha
    Ertas, Yelda
    Uyar, Tamer
    JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (41): : 21609 - 21618
  • [47] SXPS analysis of passivation and complexation on the CdS (101¯ 0) surface
    D. Mayer
    K. H. Hallmeier
    T. Chassé
    R. Szargan
    Fresenius' Journal of Analytical Chemistry, 1998, 361 : 689 - 692
  • [48] Coordination assembling of nickel tetrathiooxalate on surface of CdS nanocrystals
    Guo, L
    Dai, J
    Bian, GQ
    Jia, DX
    Zhu, QY
    Zhang, JS
    INORGANIC CHEMISTRY COMMUNICATIONS, 2003, 6 (10) : 1323 - 1325
  • [49] Surface states effect on photoluminescence of CdS colloidal nanocrystals
    Katsaba, A. V.
    Ambrozevich, S. A.
    Vitukhnovsky, A. G.
    Fedyanin, V. V.
    Lobanov, A. N.
    Krivobok, V. S.
    Vasiliev, R. B.
    Samatov, G.
    JOURNAL OF APPLIED PHYSICS, 2013, 113 (18)
  • [50] Localizing newly introduced ligands on the surface of CdS nanocrystals
    Li, Xin
    Tang, Ming Lee
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2014, 248
12345