Open AccessTWO-DIMENSIONAL LOCALIZED VIBRATIONAL MODES OF POLYTHIOPHENE AROUND AN ELECTRONIC BIPOLARON
Author(s) -
Xie Zun,
Zhongwei An,
You-Cheng Li
Publication year - 1999
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.48.1938
Subject(s) - bipolaron , polythiophene , infrared , raman spectroscopy , materials science , planar , molecular vibration , molecular physics , infrared spectroscopy , physics , optics , polaron , conductive polymer , electron , computer science , polymer , computer graphics (images) , quantum mechanics , composite material
In consideration of the influence of a planar polythiophene configuration,we study the localized vibrational modes around an electronics bipolaron by using a two-dimensional SSH model.Fifteen lo-calized vibrational modes have been found,among them,four infrared active localized vibrational modes and four Raman active ones could be used to interpret the four observed intense infrared ab-sorption lines at 1020,1120,1200 and 1323 cm-1,and the four Raman active absorption peaks at 700,1047,1175 and 1220 cm-1,respectively.