Ultrafast relaxation dynamics of photoexcitations in fullerenes

被引：4
|
作者：
Nakamura, A [1 ]
Ichida, M [1 ]
Yajima, T [1 ]
机构：
[1] NAGOYA UNIV,FAC ENGN,DEPT APPL PHYS,CHIKUSA KU,NAGOYA,AICHI 46401,JAPAN
来源：
PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS | 1996年 / 33卷 / 1-3期
关键词：
D O I：
10.1016/0960-8974(96)83636-9
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
We have studied relaxation dynamics of photoexcitations of C-60 and C-70 molecules in solution and in solid by means of a femtosecond pump and probe spectroscopy. Comparing the results for both C-60 and C-70, we discuss especially relaxation processes in C-70. With the excitation of the dipole allowed transition at 3 eV, the photoexcitations of C-70 molecules in solution are relaxed into the triplet state in similar to 1 ns. For C-70 solid, however, the fast relaxation occurs in 1.2 ps, which is interpreted in terms of the self-trapping of charge-transfer (CT) excitons.
引用
收藏
页码：169 / 173
页数：5
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