Study on the diffusions of a quantum rod using polarized fluorescence correlation spectroscopy

J. Lee; F. Fujii; S. Y. Kim; C. G. Back; S. K. Kim

doi:10.1117/12.2018690

20 May 2013 Study on the diffusions of a quantum rod using polarized fluorescence correlation spectroscopy

J. Lee, F. Fujii, S. Y. Kim, C. G. Back, S. K. Kim

Proceedings Volume 8879, Nano-Bio Sensing, Imaging, and Spectroscopy; 88790R (2013) https://doi.org/10.1117/12.2018690
Event: Nano-Bio Sensing, Imaging and Spectroscopy, 2013, Jeju, Korea, Republic of

Abstract

The polarization dependence of rotational diffusion of quantum rods was investigated and characterized by analyzing amplitude and characteristic time of the correlation functions. In order to measure the polarization dependence, a polarized fluorescence correlation spectroscopy system was composed based on a microscope. From the results, the rotational diffusion region of Qrod was observed at a time range below 10^-5 s, and the rotational diffusion parameters were extracted by using a rotational diffusion model. The parameters revealed the polarization dependence of rotational diffusion of Qrod in solution. We showed that polarized FCS is quite useful to investigate rotational diffusion of rod-like particles.

Citation Download Citation

J. Lee, F. Fujii, S. Y. Kim, C. G. Back, and S. K. Kim "Study on the diffusions of a quantum rod using polarized fluorescence correlation spectroscopy", Proc. SPIE 8879, Nano-Bio Sensing, Imaging, and Spectroscopy, 88790R (20 May 2013); https://doi.org/10.1117/12.2018690

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