1. Reverse polarization in conjugated heterocycle polythiophene
- Author
-
Mei Liang-Mo, Liu De-Sheng, Zhang Da-Cheng, Han Sheng-Hao, Wang Lu-Xia, and Xie Shi-Jie
- Subjects
chemistry.chemical_compound ,Materials science ,chemistry ,Electric field ,Excited state ,Heteroatom ,Physics::Atomic and Molecular Clusters ,General Physics and Astronomy ,Polythiophene ,Conjugated system ,Polarization (waves) ,Molecular physics ,Biexciton - Abstract
Reverse polarization in polythiophene under an applied electric field has been studied in the framework of the tight-binding model. It is found that the applied electronic field has a great influence on the excited states of polythiophene. The effect of the heteroatoms on the polarization has been calculated and analysed carefully. It is indicated that a reverse polarization of biexcitons in polythiophene will be observed more easily. The heteroatoms increase this reversed polarization strength apparently.
- Published
- 2004