Volume 41, Issue 6 (November 2013)

    Concentration Effect on Photoluminescence Tests of the CdSe Colloid Nanocrystal System

    (Received 12 November 2012; accepted 15 April 2013)

    Published Online: 2013

    CODEN: JTEOAD

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    Abstract

    In this study, monodispersed CdSe nanocrystal (NCs) were prepared by means of solution-phase synthesis. CdSe/CdS NCs were synthesized via successive ion layer adsorption and reaction on CdSe core NCs. The optical properties of CdSe and CdSe/CdS core/shell NCs dissolved in different solvents were investigated. We discuss here the photoluminescence properties of an NC system that are affected by the NC concentration and the solvent variety, including photoluminescence intensity variation and photoluminescence peak shift. The change in emission intensity is due to the influence of the solvent polarity and the NC concentration quenching effect. The phenomenon of a large blue shift of photoluminescence peaks with NC concentration is caused by interactions among the NCs.


    Author Information:

    Lin, Zhonghai
    Key Laboratory of Intelligent Information Processing in Universities of Shandong, Shandong Institute of Business and Technology, Yantai, 264005

    International Center for Dielectric Research, Xi’an Jiaotong Univ., Xi’an,

    Zhu, Zhilin
    Key Laboratory of Intelligent Information Processing in Universities of Shandong, Shandong Institute of Business and Technology, Yantai,

    Wang, Minqiang
    International Center for Dielectric Research, Xi’an Jiaotong Univ., Xi’an,

    Wei, Guangfen
    Key Laboratory of Intelligent Information Processing in Universities of Shandong, Shandong Institute of Business and Technology, Yantai,

    Du, Huiqiu
    Key Laboratory of Intelligent Information Processing in Universities of Shandong, Shandong Institute of Business and Technology, Yantai,

    Wang, Pinjian
    Key Laboratory of Intelligent Information Processing in Universities of Shandong, Shandong Institute of Business and Technology, Yantai,

    Liu, Yanwu
    Key Laboratory of Intelligent Information Processing in Universities of Shandong, Shandong Institute of Business and Technology, Yantai,

    Yang, Zhi
    International Center for Dielectric Research, Xi’an Jiaotong Univ., Xi’an,


    Stock #: JTE20120326

    ISSN: 0090-3973

    DOI: 10.1520/JTE20120326

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    Author
    Title Concentration Effect on Photoluminescence Tests of the CdSe Colloid Nanocrystal System
    Symposium , 0000-00-00
    Committee F01