TY - GEN
T1 - Ultrafast relaxation dynamics of photoexcitations in one-dimensional conjugated polymers
AU - Yoshizawa, Masayuki
AU - Kobayashi, Takayoshi
PY - 1991/12/1
Y1 - 1991/12/1
N2 - Ultrafast optical response in conjugated polymers has been investigated by femtosecond absorption spectroscopy. Several nonlinear processes, i.e., hole burning, Raman gain, inverse Raman scattering, and induced-frequency shift, were observed. The formation and relaxation of self-trapped excitons were observed in both polydiacetylenes and polythiophenes. A model of the relaxation process is proposed and the short life of excitons and difference between fluorescent and nonfluorescent polymers are explained.
AB - Ultrafast optical response in conjugated polymers has been investigated by femtosecond absorption spectroscopy. Several nonlinear processes, i.e., hole burning, Raman gain, inverse Raman scattering, and induced-frequency shift, were observed. The formation and relaxation of self-trapped excitons were observed in both polydiacetylenes and polythiophenes. A model of the relaxation process is proposed and the short life of excitons and difference between fluorescent and nonfluorescent polymers are explained.
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M3 - Conference contribution
AN - SCOPUS:0026283115
SN - 0750301988
T3 - Institute of Physics Conference Series
SP - 503
EP - 508
BT - Institute of Physics Conference Series
PB - Publ by IOP Publishing Ltd
T2 - Proceedings of the 7th International Symposium on Ultrafast Processes in Spectroscopy
Y2 - 7 October 1991 through 10 October 1991
ER -