Fluorescence Enhancement, Blinking Suppression, and Gray States of Individual Semiconductor Nanocrystals Close to Gold Nanoparticles

被引：109
|
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：
NANO LETTERS | 2010年 / 10卷 / 10期
关键词：
CdSe nanocrystals; gold nanoparticles; silica coating; photoluminescence; blinking suppression; CDSE QUANTUM DOTS; EMISSION; INTERMITTENCY; PHOTOLUMINESCENCE; FLUCTUATIONS; LUMINESCENCE; MONOLAYERS; BEHAVIOR; CELLS;
D O I：
10.1021/nl102451c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The optical properties of nanocrystals arc drastically changed by the interaction with adjacent metal nanoparticules By time-resolved photoluminescence spectroscopy. we investigate CdSe multishell nanocrystals coupled to self-assembled films of Au nanoparticles The distance between emitter and metal is adjusted by coating the nanocrystals with silica shells These NCs showed increased fluorescence intensity, a decreased fluorescence lifetime, strong blinking suppression, and fluorescence from gray states These observations can be explained by the metal particle induced change of excitation and recombination rates
引用
收藏
页码：4166 / 4174
页数：9
相关论文
共 50 条
  • [21] Fluorescence quenching of CdTe nanocrystals by bound gold nanoparticles in aqueous solution
    Zhang, Jian
    Badugu, Ramachandram
    Lakowicz, Joseph R.
    PLASMONICS, 2008, 3 (01) : 3 - 11
  • [22] FRET enhancement close to gold nanoparticles positioned in DNA origami constructs
    Aissaoui, Nesrine
    Moth-Poulsen, Kasper
    Kall, Mikael
    Johansson, Peter
    Wilhelmsson, L. Marcus
    Albinsson, Bo
    NANOSCALE, 2017, 9 (02) : 673 - 683
  • [23] Photoluminescence enhancement of silicon nanocrystals by excimer laser implanted gold nanoparticles
    Richter, Lukas Janos
    Ihlemann, Juergen
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2022, 128 (09):
  • [24] Photoluminescence enhancement of silicon nanocrystals by excimer laser implanted gold nanoparticles
    Lukas Janos Richter
    Jürgen Ihlemann
    Applied Physics A, 2022, 128
  • [25] Unusual fluorescence enhancement of a novel carbazolyldiacetylene bound to gold nanoparticles
    Li, Cuihong
    Liu, Xiaofeng
    Yuan, Mingjian
    Li, Junbo
    Guo, Yanbing
    Xu, Jialiang
    Zhu, Mei
    Lv, Jing
    Liu, Huibiao
    Li, Yuliang
    LANGMUIR, 2007, 23 (12) : 6754 - 6760
  • [26] Fluorescence lifetime enhancement of organic chromophores attached to gold nanoparticles
    Hernández, FE
    Yu, SJ
    García, M
    Campiglia, AD
    JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (19): : 9499 - 9504
  • [27] Gold nanoparticles quench fluorescence by phase induced radiative rate suppression
    Dulkeith, E
    Ringler, M
    Klar, TA
    Feldmann, J
    Javier, AM
    Parak, WJ
    NANO LETTERS, 2005, 5 (04) : 585 - 589
  • [28] Enhancement of fluorescence of single quantum dots by encasing in semiconductor and metal nanoparticles
    Rani, Sweta
    Kumar, Jitendra
    JOURNAL OF APPLIED PHYSICS, 2021, 130 (16)
  • [29] Enhancing the fluorescence of individual thick shell CdSe/CdS nanocrystals by coupling to gold structures
    Canneson, D.
    Mallek-Zouari, I.
    Buil, S.
    Quelin, X.
    Javaux, C.
    Dubertret, B.
    Hermier, J-P
    NEW JOURNAL OF PHYSICS, 2012, 14
  • [30] Fluorescence Enhancement / Quenching of Pyrromethene Laser Dyes Hybridized with Gold Nanoparticles
    Sakr, Mahmoud E.
    Abou Kana, Maram T. H.
    ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS, 2014, 47 (01): : 86 - 98
12345