Efficient energy transfer from InGaN quantum wells to Ag nanoparticles

G. W. Shu; C. H. Chiu; L. T. Huang; T. N. Lin; C. C. Yang; J. S. Wang; C. T. Yuan; J. L. Shen; H. C. Kuo; C. A. J. Lin; W. H. Chang; H. H. Wang; H. I. Yeh; W. H. Chan; W. C. Fan; W. C. Chou

doi:10.1039/C3CP43894E

Efficient energy transfer from InGaN quantum wells to Ag nanoparticles

G. W. Shu,^a C. H. Chiu,^b L. T. Huang,^a T. N. Lin,^a C. C. Yang,^a J. S. Wang,^a C. T. Yuan,^a J. L. Shen,*^a H. C. Kuo,*^b C. A. J. Lin,^c W. H. Chang,^c H. H. Wang,^d H. I. Yeh,^d W. H. Chan,^e W. C. Fan^f and W. C. Chou^f

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* Corresponding authors

^a Physics Department, Chung Yuan Christian University, Chung-Li, Taiwan
E-mail: jlshen@cycu.edu.tw

^b Department of Photonic and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsin-chu, Taiwan
E-mail: hckuo@faculty.nctu.edu.tw

^c Department of Biomedical Engineering, Chung Yuan Christian University, Chung-Li, Taiwan

^d Department of Internal Medicine, Mackay Memorial Hospital, Mackay Medical College, New Taipei City, Taiwan

^e Department of Bioscience Technology, Chung Yuan Christian University, Chung Li, Taiwan

^f Department of Electrophysics, National Chiao Tung University, Hsin-chu 30010, Taiwan

Abstract

Nonradiative energy transfer from an InGaN quantum well to Ag nanoparticles is unambiguously demonstrated by the time-resolved photoluminescence. The distance dependence of the energy transfer rate is found to be proportional to 1/d³, in good agreement with the prediction of the dipole interaction calculated from the Joule losses in acceptors. The maximum energy-transfer efficiency of this energy transfer system can be as high as 83%.

Physical Chemistry Chemical Physics

Efficient energy transfer from InGaN quantum wells to Ag nanoparticles

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