CdTe/CdS core shell quantum dots for photonic applications

被引:29
|
作者
de Menezes, FD
Brasil, AG
Moreira, WL
Barbosa, LC
Cesar, CL
Ferreira, RD
de Farias, PMA
Santos, BS [1 ]
机构
[1] Univ Fed Pernambuco, Dept Quim Fundamental, BR-50670901 Recife, PE, Brazil
[2] Univ Fed Pernambuco, Dept Ciencias Farmaceut, BR-50670901 Recife, PE, Brazil
[3] Univ Fed Pernambuco, Dept Biofis & Radiobiol, BR-50670901 Recife, PE, Brazil
[4] Univ Estadual Campinas, Dept Elect Quant, BR-13083970 Campinas, SP, Brazil
关键词
quantum dots; CdTe; luminescence;
D O I
10.1016/j.mejo.2005.04.005
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this work, we show a simple experimental procedure to obtain CdTe/CdS (diameter=3-7 nm) core shell nanocrystals in colloidal suspension. The nanocrystals were characterized by transmission electronic microscopy and powder X-ray diffraction analysis. The optical properties were determined by electronic absorption, excitation and emission spectroscopies and are discussed in terms of chemical changes that occur at the surface of the particles. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:989 / 991
页数:3
相关论文
共 50 条
  • [21] Synthesis of Aqueous CdTe/CdS/ZnS Core/shell/shell Quantum Dots by a Chemical Aerosol Flow Method
    Chuanmiao Yan
    Fangqiong Tang
    Linlin Li
    Hongbo Li
    Xinglu Huang
    Dong Chen
    Xianwei Meng
    Jun Ren
    Nanoscale Research Letters, 5
  • [22] Synthesis of Aqueous CdTe/CdS/ZnS Core/shell/shell Quantum Dots by a Chemical Aerosol Flow Method
    Yan, Chuanmiao
    Tang, Fangqiong
    Li, Linlin
    Li, Hongbo
    Huang, Xinglu
    Chen, Dong
    Meng, Xianwei
    Ren, Jun
    NANOSCALE RESEARCH LETTERS, 2010, 5 (01): : 189 - 194
  • [23] Synthesis of CdSe/CdS core/shell quantum dots for biological sensing applications
    Xu, Yang
    Mariam, Poojitha
    Sethi, Varun
    Jones, Mason
    Meehan, Kathleen
    OPTICAL DIAGNOSTICS AND SENSING VI, 2006, 6094
  • [24] The effect of core size on the fluorescence emission properties of CdTe@CdS core@shell quantum dots
    Zhu, Jian
    Wang, Si-Nan
    Li, Jian-Jun
    Zhao, Jun-Wu
    JOURNAL OF LUMINESCENCE, 2018, 199 : 216 - 224
  • [25] Synthesizing and Investigating Photoluminescence Properties of CdTe and CdTe@CdS Core-Shell Quantum Dots (QDs): A New and Simple Microwave Activated Approach for Growth of CdS Shell Around CdTe Core
    Molaei, M.
    Hasheminejad, H.
    Karimipour, M.
    ELECTRONIC MATERIALS LETTERS, 2015, 11 (01) : 7 - 12
  • [26] Synthesizing and investigating photoluminescence properties of CdTe and CdTe@CdS core-shell quantum dots (QDs): A new and simple microwave activated approach for growth of CdS shell around CdTe core
    M. Molaei
    H. Hasheminejad
    M. Karimipour
    Electronic Materials Letters, 2015, 11 : 7 - 12
  • [27] Design, synthesis and photophysical properties of InP/CdS/CdSe and CdTe/CdS/CdSe (core/shell/shell) quantum dots for photon upconversion
    Sellers, Diane G.
    Doty, Matthew F.
    2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC), 2015,
  • [28] Aqueous L-cysteine Capped CdTe and CdTe/CdS Core-Shell Quantum Dots: Preparation and Characterization
    Zhang Mengya
    Gao Bing
    Liu Cui
    Yuan Xiao
    Yang Yunxia
    Li Hongbo
    RARE METAL MATERIALS AND ENGINEERING, 2016, 45 : 554 - 559
  • [29] Synthesis and characterization of CdTe/CdS and CdTe/CdSe core/shell type-II quantum dots in a noncoordinating solvent
    Chang, Jia-Yaw
    Shiuann-Ren Wang
    Yang, Cheng-Hsien
    NANOTECHNOLOGY, 2007, 18 (34)
  • [30] Nonlinear Optical Properties of CdSe and CdTe Core-Shell Quantum Dots and Their Applications
    Kalsoom, Um e
    Yi, Rongxing
    Qu, Junle
    Liu, Liwei
    FRONTIERS IN PHYSICS, 2021, 9