Effect of interchain coupling on the inversed polarization of a biexciton in conjugated polymers

被引：2

作者：

Gao, K ^{[1
]}

Fu, JY ^{[1
]}

Liu, DS ^{[1
]}

Xie, SJ ^{[1
]}

机构：

[1] Shandong Univ, Sch Phys & Microelect, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

ACTA PHYSICA SINICA | 2005年 / 54卷 / 02期

关键词：

inversed polarization; biexciton state; interchain coupling;

D O I：

10.7498/aps.54.665

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Effect of interchain coupling on the inversed polarization of a biexciton has been studied in the framework of a tight-binding approximation. It was found that a biexciton state is mainly confined in one chain even the interchain coupling is included. The inversed polarization will be enhanced remarkably with the interchain coupling in the case of a weak non-degenerate confinement. However, the inversed polarization will keep nearly unchanged for a strong non-degenerate confinement.

引用

页码：665 / 668

页数：4

共 19 条

[11] THEORY OF TRIPLET EXCITON POLARONS AND PHOTOINDUCED ABSORPTION IN CONJUGATED POLYMERS
SHIMOI, Y
ABE, S
[J]. PHYSICAL REVIEW B, 1994, 49 (20): : 14113 - 14121
[12] EXACT NUMERICAL INVESTIGATION OF THE POLARON-SOLITON GENERATION IN POLYACETYLENE
STAFSTROM, S
CHAO, KA
[J]. PHYSICAL REVIEW B, 1984, 29 (12): : 7010 - 7011
[13] Photoinduced polarization inversion in a polymeric molecule
Sun, X
Fu, RL
Yonemitsu, K
Nasu, K
[J]. PHYSICAL REVIEW LETTERS, 2000, 84 (13) : 2830 - 2832
[14] Sun X, 2001, PHYS REV A, V64, DOI 10.1103/PhysRevA.64.032504
[15] Effect of atomic disorder or chain length on the stability of photoinduced polarization inversion
Wang, LX
Liu, DS
Wei, JH
Xie, SJ
Han, SH
Mei, LM
[J]. JOURNAL OF CHEMICAL PHYSICS, 2002, 116 (15): : 6760 - 6763
[16] Effect of atomic disorder fluctuation on the stability of photoinduced polarization inversion
Wang, LX
Liu, DS
Xie, SJ
[J]. ACTA PHYSICA SINICA, 2002, 51 (02) : 362 - 366
[17] Interchain coupling and localized vibration modes in conjugated polymers of finite length
Xie, SJ
Wei, JH
Liu, DS
Mei, LM
Lin, DL
[J]. PHYSICAL REVIEW B, 1997, 56 (20): : 13162 - 13166
[18] Exciton states and luminescent properties in one-dimensional semiconductor polymer and the effect of lattice distortion - Lanczos exact diagonalization method
Xiong, Y
[J]. ACTA PHYSICA SINICA, 1999, 48 (06) : 1138 - 1146
[19] 傅柔励, 1998, 物理学报, V47, P94

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