کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5399054 | 1392673 | 2016 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Franck-Condon analysis of fluorescence quenching in hybrid P3HT: wt% TBPO-capped CdSe quantum dot matrix
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Fluorescence and optical absorption spectra of hybrid material׳s structure [Poly (3-hexylthiophene-2, 5-diyl) - wt% TBPO-capped CdSe] are measured and analyzed by the Franck-Condon theory. Fluorescence spectra both in solution and in thin films show a monotonic decrease with the increase in the TBPO-capped CdSe quantum dots concentration. We have used the Franck-Condon analysis method to estimate the vibrational modes energy, the Huang-Rhys factor and the relaxation energy as a function of TBPO-capped CdSe quantum dots concentrations. We notice that the Franck-Condon model is fairly sufficient to describe the decrease in fluorescence intensity. The theoretical phonon energies of symmetric and anti-symmetric C=C, C-H, C-H out plane stretching modes were set up to be in good agreement with experimental data determined by Fourier transform infrared transmission spectroscopy for pristine P3HT film.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 170, Part 1, February 2016, Pages 30-36
Journal: Journal of Luminescence - Volume 170, Part 1, February 2016, Pages 30-36
نویسندگان
Z. Ben Hamed, N. Mastour, A. Ben chaabane, F. Kouki, M.A. Sanhoury, H. Bouchriha,