SPECIAL TOPI—International Conference on Nanoscience & Technology, China 2013 |
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Enhanced photoluminescence of CdSe quantum dots by the coupling of Ag nanocube and Ag film |
Jiang Tong-Tong (蒋童童)a, Shao Wei-Jia (邵伟佳)a, Yin Nai-Qiang (尹乃强)a, Liu Ling (刘玲)a, Song Jiang-Lu-Qi (宋江鲁奇)a, Zhu Li-Xin (朱立新)b, Xu Xiao-Liang (许小亮)a |
a Department of Physics, University of Science and Technology of China, Hefei 230026, China; b Center Laboratory, First Affiliated Hospital of Anhui Medical University, Hefei 230022, China |
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Abstract The coupling of local surface plasmon (LSP) of nanoparticle and surface plasmon (SP) mode produced by metal film can lead to the enhanced electromagnetic field, which has an important application in enhancing the fluorescence of quantum dots (QDs). Herein, the Ag nanocube and Ag film are used to enhance the fluorescence of CdSe QDs. The enhancement is found to relate to the sizes of the Ag nanocube and the thickness of the Ag film. Moreover, we also present the fluorescence enhancement caused by only SP. The result shows that the coupling between metal nanoparticles and metal film can realize larger field enhancement. Numerical simulation verifies that a nanocube can localize a strong electric field around its corner. All the results indicate that the fluorescence of QDs can be efficiently improved by optimizing the parameters of Ag film and Ag cubes.
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Received: 04 September 2013
Revised: 31 March 2014
Accepted manuscript online:
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PACS:
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61.46.Df
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(Structure of nanocrystals and nanoparticles ("colloidal" quantum dots but not gate-isolated embedded quantum dots))
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73.63.Kv
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(Quantum dots)
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78.67.Bf
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(Nanocrystals, nanoparticles, and nanoclusters)
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68.37.Hk
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(Scanning electron microscopy (SEM) (including EBIC))
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51272246 and 81172082) and the Fundamental Research Funds for the Central Universities, China (Grant No. 2030000001). |
Corresponding Authors:
Zhu Li-Xin, Xu Xiao-Liang
E-mail: lx-zhu@163.com;xlxu@ustc.edu.cn
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Cite this article:
Jiang Tong-Tong (蒋童童), Shao Wei-Jia (邵伟佳), Yin Nai-Qiang (尹乃强), Liu Ling (刘玲), Song Jiang-Lu-Qi (宋江鲁奇), Zhu Li-Xin (朱立新), Xu Xiao-Liang (许小亮) Enhanced photoluminescence of CdSe quantum dots by the coupling of Ag nanocube and Ag film 2014 Chin. Phys. B 23 086102
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[1] |
Jang L W, Jeon D W, Sahoo T, Polyakov A Y, Saravanakumar B, Yu Y T, Cho Y H, Yang J K and Lee I H 2012 J. Mater. Chem. 22 21749
|
[2] |
Yeh D M, Huang C F, Chen C Y, Lu Y C and Yang C C 2008 Nanotechnology 19 345201
|
[3] |
Kim K, Kim D J, Moon S, Kim D and Byun K M 2009 Nanotechnology 20 315501
|
[4] |
Liu L, Xu X L, Lei J M, Liu Y S and Yang Z 2011 Thin Solid Films 519 5582
|
[5] |
Gao T T, Xu Z W, Fang F Z, Gao W L, Zhang Q and Xu X X 2012 Nanoscale Res. Lett. 7 399
|
[6] |
Wang J, Huang L Q, Tong H M, Zhai L P, Yuan L, Zhao L H, Zhang W W, Shan D Z, Hao A W and Feng X H 2013 Chin. Phys. B 22 047301
|
[7] |
Deng W and Goldys E M 2012 Langmuir 28 10152
|
[8] |
Hutter E and Fendler J H 2004 Adv. Mater. 16 1685
|
[9] |
EI-sayed I H, Huang X and EI-sayed M A 2005 Nano Lett. 5 829
|
[10] |
Liu Y M, Stefano Palomba, Yongshik Park, Thomas Zentgraf, Yin X B and Zhang X 2012 Nano Lett. 12 4853
|
[11] |
Hermoso W, Alves T V, Ornellas F R and Camargo P H C 2012 Eur. Phys. J. D 66 135
|
[12] |
Kan C X, Zhu J Jand Zhu X G 2008 J. Phys. D: Appl. Phys. 41 155304
|
[13] |
Zhou F, Liu Y and Li Z Y 2011 Chin. Phys. B 20 037303
|
[14] |
Li X P, Chen B J, Shen R S, Zhang J S, Sun J S, Cheng L H, Zhong H Y, Tian Y, Fu S B and Du G T 2013 Chin. Phys. B 22 023202
|
[15] |
Hèléne Y L, Daniel G, Réal V and Anna M R 2009 J. Phys. Chem. C 113 21293
|
[16] |
Stuart H R and Hall D G 1998 Phys. Rev. Lett. 80 5663
|
[17] |
Yang L Y O, Wang J Y and Kiang Y W 2010 Opt. Commun. 283 2967
|
[18] |
Cesario J 2005 Opt. Lett. 30 3404
|
[19] |
Papanikolaou N 2007 Phys. Rev. B 75 235426
|
[20] |
Qu L H and Peng X G 2002 J. Am. Chem. Soc. 124 2049
|
[21] |
Skrabalak S E, Au L, Li X D and Xia Y N 2007 Nat. Protoc. 2 2183
|
[22] |
Wang Y, Zheng Y Q, Huang C Z and Xia Y N 2013 J. Am. Chem. Soc. 135 1941
|
[23] |
Yuan L, Zhu J, Ren Y J and Bai S W 2011 J. Nanopart. Res. 13 6305
|
[24] |
Zakharko Y, Serdiuk T, Nychyporuk T, Géloën A, Lemiti M and Lysenko V 2012 Plasmonics 7 725
|
[25] |
Chen Y, Munechika K and Ginger D S 2007 Nano Lett. 7 690
|
[26] |
Chowdhury M H, Pond J, Gray S K and Lakowicz J R 2008 J. Phys. Chem. C 112 11236
|
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