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
  • [31] Silicon Nanocrystals With Organic Passivation: More Efficient Luminescence From Silicon
    Herynkova, Katerina
    Kusova, Katerina
    Cibulka, Ondrej
    Pelant, Ivan
    Lang, Jan
    NANOCON 2011, 2011, : 18 - 24
  • [32] Preparation and surface modification of photoluminescent CdS nanocrystals
    Tachibana, Yasuhiro
    Sato, Keiichi
    Hattori, Shinya
    Chiba, Taeko
    Ueda-Sarson, Keiko
    Torimoto, Tsukasa
    Kuwabata, Susumu
    Transactions of the Materials Research Society of Japan, Vol 31, No 2, 2006, 31 (02): : 433 - 436
  • [33] High quality CdS nanocrystals: surface effects
    Zezza, F
    Comparelli, R
    Striccoli, M
    Curri, ML
    Tommasi, R
    Agostiano, A
    Della Monica, M
    SYNTHETIC METALS, 2003, 139 (03) : 597 - 600
  • [34] Electronic Properties of Surface Vacancies in CdS Nanocrystals
    Kupchak, I. M.
    Serpak, N. F.
    Kapush, O. A.
    Korbutyak, D. V.
    PHYSICS AND CHEMISTRY OF SOLID STATE, 2018, 19 (01): : 34 - 39
  • [35] Blinking Behavior of Surface-Defect and Impurity Luminescence in Nondoped and Mn2+-Doped CdS Nanocrystals
    Ishizumi, Atsushi
    Kanemitsu, Yoshihiko
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2009, 78 (08)
  • [36] Spectroelectrochemical Signatures of Surface Trap Passivation on CdTe Nanocrystals
    van der Stam, Ward
    du Fosse, Indy
    Grimaldi, Gianluca
    Monchen, Julius O. V.
    Kirkwood, Nicholas
    Houtepen, Arjan J.
    CHEMISTRY OF MATERIALS, 2018, 30 (21) : 8052 - 8061
  • [37] Modulation of the Band Gap Increase in Nanocrystals by Surface Passivation
    Liu, Xin
    Sun, Y. Y.
    West, D.
    Gao, Xingfa
    Zhang, S. B.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (25): : 14026 - 14030
  • [38] DNA-passivated CdS nanocrystals: Luminescence, bioimaging, and toxicity profiles
    Ma, Nan
    Yang, Jun
    Stewart, Kelly M.
    Kelley, Shana O.
    LANGMUIR, 2007, 23 (26) : 12783 - 12787
  • [39] Photo luminescence from CdS nanocrystals fabricated by sequential ion implantation
    Kanemitsu, Y
    Ando, M
    Matsuura, D
    Kushida, T
    White, CW
    JOURNAL OF LUMINESCENCE, 2001, 94 : 235 - 238
  • [40] CdS:Mn nanocrystals in transparent xerogel matrices: Synthesis and luminescence properties
    Counio, G
    Esnouf, S
    Gacoin, T
    Boilot, JP
    JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (51): : 20021 - 20026
12345