Near IR photoluminescence in mixed films of conjugated polymers and fullerenes

被引:29
|
作者
Hasharoni, K [1 ]
KeshavarzK, M [1 ]
Sastre, A [1 ]
Gonzalez, R [1 ]
BellaviaLund, C [1 ]
Greenwald, Y [1 ]
Swager, T [1 ]
Wudl, F [1 ]
Heeger, AJ [1 ]
机构
[1] MIT,DEPT CHEM,CAMBRIDGE,MA 02139
来源
JOURNAL OF CHEMICAL PHYSICS | 1997年 / 107卷 / 07期
关键词
D O I
10.1063/1.474607
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The photoinduced electron transfer between conjugated polymers and a series of functionalized fullerenes was studied, A new photoluminescence signal was observed in the near IR (similar to 1,4 eV), This weak IR photoluminescence does not result from direct excitation of the fullerene, but from radiative electron-hole recombination between the fullerene excited state and the polymer ground state. The intensity of this recombination luminescence depends on the electrochemical nature of the functional group; it is observed only for fullerenes with first reduction potential higher than that of C-60. (C) 1997 American Institute of Physics.
引用
收藏
页码:2308 / 2312
页数:5
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