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 36 条
  • [31] Fluorescent Metal-Semiconductor Hybrid Structures by Ultrasound-Assisted in Situ Growth of Gold Nanoparticles on Silica-Coated CdSe-Dot/CdS-Rod Nanocrystals
    Tang, Xiao
    Kroeger, Elvira
    Nielsen, Andreas
    Schneider, Simon
    Strelow, Christian
    Mews, Alf
    Kipp, Tobias
    CHEMISTRY OF MATERIALS, 2019, 31 (01) : 224 - 232
  • [32] Gold coated Cicada wings: Anti-reflective micro-environment for plasmonic enhancement of fluorescence from upconversion nanoparticles
    Gupta, Akash
    Cheng, Hao-Yu
    Lin, Kung-Hsuan
    Wu, Chien Ting
    Roy, Pradip Kumar
    Ghosh, Sandip
    Chattopadhyay, Surojit
    MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2019, 102 : 569 - 577
  • [33] Studying Protein–DNA Complexes Using Gold Nanoparticles by Exploiting Particle Aggregation, Refractive Index Change, and Fluorescence Quenching and Enhancement Principles
    Laura Sutarlie
    Khin Moh Moh Aung
    Michelle Gek Liang Lim
    Steven Lukman
    Edwin Cheung
    Xiaodi Su
    Plasmonics, 2014, 9 : 753 - 763
  • [34] Studying Protein-DNA Complexes Using Gold Nanoparticles by Exploiting Particle Aggregation, Refractive Index Change, and Fluorescence Quenching and Enhancement Principles
    Sutarlie, Laura
    Aung, Khin Moh Moh
    Lim, Michelle Gek Liang
    Lukman, Steven
    Cheung, Edwin
    Su, Xiaodi
    PLASMONICS, 2014, 9 (04) : 753 - 763
  • [35] Effects of gold nanoparticles on the enhancement of upconversion and near-infrared emission in Er3+/Yb3+ co-doped transparent glass-ceramics containing BaF2 nanocrystals
    Dan, Ho Kim
    Zhou, Dacheng
    Wang, Rongfei
    Jiao, Qing
    Yang, Zhengwen
    Song, Zhiguo
    Yu, Xue
    Qiu, Jianbei
    CERAMICS INTERNATIONAL, 2015, 41 (02) : 2648 - 2653
  • [36] Near-infrared photoluminescence enhancement of N-acetyl-L-cysteine (NAC)-protected gold nanoparticles via fluorescence resonance energy transfer from NAC-stabilized CdTe quantum dots
    Liu, Yang
    Gong, Xiaojuan
    Cheng, Zhe
    Shuang, Shaomin
    Choi, Martin M. F.
    Li, Chenzhong
    Dong, Chuan
    RSC ADVANCES, 2016, 6 (91) : 88042 - 88049
1234