利用電場調制光譜研究駢苯衍生物(PTCDI-CnH2n+1)之激子行為

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利用電場調制光譜研究駢苯衍生物(PTCDI-CnH2n+1)之激子行為

The exciton behavior of PTCDI thin films studied by electric field modulation spectroscopy

洪士淮 , Masters　　Advisor：周維揚　　

繁體中文

電場調制光譜；駢苯衍生物；激子； electro-modulation spectroscopy ； CER ； PTCDI ； exciton

Abstract │ Reference (41) │ Altmetrics

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Room-temperature contactless electroreflectance (CER) was used to investigate the optical properties of a N,N’-didecylperylene-3,4,9,10-tetracarboxylic diimide (PTCDI) thin film sandwiched between indium tin oxide and aluminum electrodes (Al/PTCDI/PI/ITO/glass substrate) at ambient.  The electro-modulated optical responses of the Al/PTCDI/PI/ITO/glass structures were characterized by various alternating current biases. The energy levels of PTCDI-C_3 H_7 and PTCDI-C_13 H_27 are discussed in terms of the absorption spectrum and electromodulation spectrum.
A red shift of the absorption peak and π-conjugate bonding for PTCDI-C_13 H_27 are observed in the absorption spectra under thin-film and  solvent states. The presence of the exciton peak is inferred by the energy differences between the PTCDI-C_3 H_7 thin-film and the PTCDI-C_13 H_27 thin-film in the electro-modulation spectroscopy and the absorption spectra. At last, the effects of the exciton for charge transfer in the thin-film structures of the PTCDI-C_3 H_7 and the PTCDI-C_13 H_27 can be found by the X-ray diffraction spectrum analyses.

Reference ( 41 ) 〈TOP〉

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連結：
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連結：
[3] F. Ebisawa, T. Kurokawa, and S. Nara, "Electrical Properties of Polyacetylene Polysiloxane Interface," Journal of Applied Physics, vol. 54, pp. 3255-3259, 1983.
連結：
[4] D.Gamota, P. Brazis, K. Kalyanasundaram, and J. Zhang, "Printed organic and molecular electronics," Kluwer Academic Publishers, 2004.
連結：
[5] M.-m. Ling, Z. Bao, P. Erk, M. Koenemann, and M. Gomez, "Complementary inverter using high mobility air-stable perylene di-imide derivatives," Applied Physics Letters, vol. 90, 2007.
連結：

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