Optical Spectroscopy of Single Semiconductor Nanocrystals Close to Gold Nanoparticles

被引：0
|
作者：
Ma, Xuedan [1 ]
Tan, Hua [1 ]
Kipp, Tobias [1 ]
Mews, Alf [1 ]
机构：
[1] Univ Hamburg, Inst Phys Chem, D-20146 Hamburg, Germany
来源：
COLLOIDAL NANOCRYSTALS FOR BIOMEDICAL APPLICATIONS VII | 2012年 / 8232卷
关键词：
semiconductor nanocrystals; photoluminescence; gold nanoparticles; surface plasmon; blinking; gray states; recombination dynamics; QUANTUM DOTS; FLUORESCENCE; INTERMITTENCY; CELLS;
D O I：
10.1117/12.914454
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
The electronic interaction of semiconductor nanocrystals with adjacent metallic nanostructures is investigated by single nanocrystal fluorescence spectroscopy. We synthesized CdSe multishell semiconductor nanocrystals coated with silica shells and coupled them to self-assembled gold nanoparticle films. The nanocrystals showed an average increase of the on-time photoluminescence intensity by a factor of up to three and a decreased photoluminescence lifetime by about one order of magnitude. In addition, we observed photoluminescence from gray states and a strong blinking suppression with an increase of the on-state fraction from 60% to more than 90%.
引用
收藏
页数：10
相关论文
共 50 条
  • [21] Density-matrix-electronic-oscillator representation of optical spectroscopy of semiconductor nanocrystals
    J Chem Phys, 10 (3837):
  • [22] Density-matrix-electronic-oscillator representation of optical spectroscopy of semiconductor nanocrystals
    Yokojima, S
    Meier, T
    Mukamel, S
    JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (10): : 3837 - 3853
  • [23] Optical spectroscopy of lanthanides doped in wide band-gap semiconductor nanocrystals
    Liu, Yongsheng
    Luo, Wenqin
    Zhu, Haomiao
    Chen, Xueyuan
    JOURNAL OF LUMINESCENCE, 2011, 131 (03) : 415 - 422
  • [24] Gain Spectroscopy of Solution-Based Semiconductor Nanocrystals in Tunable Optical Microcavities
    Patel, Robin K.
    Trichet, Aurelien A. P.
    Coles, David M.
    Dolan, Philip R.
    Fairclough, Simon M.
    Leontiadou, Marina A.
    Tsang, S. C. Edman
    Binks, David J.
    Jang, Eunjoo
    Jang, Hyosook
    Taylor, Robert A.
    Smith, Jason M.
    ADVANCED OPTICAL MATERIALS, 2016, 4 (02): : 285 - 290
  • [25] Optical extinction spectroscopy of single silver nanoparticles
    Billaud, P.
    Huntzinger, J.-R.
    Cottancin, E.
    Lerme, J.
    Pellarin, M.
    Arnaud, L.
    Broyer, M.
    Del Fatti, N.
    Vallee, F.
    EUROPEAN PHYSICAL JOURNAL D, 2007, 43 (1-3): : 271 - 274
  • [26] Optical extinction spectroscopy of single silver nanoparticles
    P. Billaud
    J.-R. Huntzinger
    E. Cottancin
    J. Lermé
    M. Pellarin
    L. Arnaud
    M. Broyer
    N. Del Fatti
    F. Vallée
    The European Physical Journal D, 2007, 43 : 271 - 274
  • [27] Detection and spectroscopy of single gold nanoparticles and their interactions with single emitters.
    Sandoghdar, V
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2004, 227 : U341 - U341
  • [28] Ultrafast laser spectroscopy of semiconductor nanocrystals
    Maly, P
    CZECHOSLOVAK JOURNAL OF PHYSICS, 2002, 52 (05) : 645 - 667
  • [29] Vibrational spectroscopy of compound semiconductor nanocrystals
    Dzhagan, V. M.
    Azhniuk, Yu M.
    Milekhin, A. G.
    Zahn, D. R. T.
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2018, 51 (50)
  • [30] Spectroscopy of single nanocrystals
    Fernee, Mark J.
    Tamarat, Philippe
    Lounis, Brahim
    CHEMICAL SOCIETY REVIEWS, 2014, 43 (04) : 1311 - 1337
12345