Localized Vibrational Modes of Excitation in Electroluminescent Polymers

Chin. Phys. Lett.

1999, Vol. 16

Issue (11): 836-837 DOI:

Original Articles

Localized Vibrational Modes of Excitation in Electroluminescent Polymers

JIANG Hao¹;XU Xiao-hua¹;SUN Xin^1,2;K. Yonemitsu³

¹T. D. Lee Laboratory and Department of Physics, Fudan University, Shanghai 200433 ²National Laboratory of Infrared Physics, Shanghai Institute for Technical Physics, Shanghai 200083 ³Institute for Molecular Science, Okazaki 444-8585, Japan

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JIANG Hao, XU Xiao-hua, SUN Xin et al 1999 Chin. Phys. Lett. 16 836-837

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Abstract The localized vibrational modes of exciton and polaron are investigated, and the results show that the frequencies of the three even parity modes of exciton are very different from those of polaron. For the exciton, three modes are distinctly separated; but, for the polaron, two modes with higher frequencies are close to each other, Then, it is possible to distinguish exciton from polaron by watching their Roman spectra. Therefore, the localized mode may be used to specify the exciton and polaron in the electroluminesent polymers.

Keywords: 71.38.+i 63.22.+m 78.30.-j

Published: 01 November 1999

PACS:	71.38.+i
	63.22.+m
	78.30.-j	(Infrared and Raman spectra)

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