Sub-10 fs excited state evolution in polycarbazolyldiacetylene-polyethylene blends

被引：11
作者：
Cerullo, G [1 ]
Lanzani, G
Zavelani-Rossi, M
De Silvestri, S
Comoretto, D
Moggio, I
Dellepiane, G
机构：
[1] Ist Nazl Fis Mat, Milan, Italy
[2] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy
[3] Univ Genoa, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy
来源：
SYNTHETIC METALS | 2001年 / 116卷 / 1-3期
关键词：
time resolved spectroscopy; photoinduced absorption; Raman spectroscopy;
D O I：
10.1016/S0379-6779(00)00515-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report on sub-10 femtosecond time-resolved optical dynamics in polycarbazolyldiacetylene blended in a polyethylene matrix which is a prototype of single chain systems. Transmission difference data reveal an ultrafast kinetics which is assigned to the rapid internal conversion taking place following photoexcitation. Oscillations in the time-dependent traces are assigned to impulsive stimulated resonant Raman scattering, based on the comparison with cw Raman data. (C) 2001 Elsevier Science B.V. All rights reserved.
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收藏
页码：57 / 60
页数：4
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