共轭高聚物双分子链中激子生成的动力学研究

Dynamics study of exciton formation in dual conjugated polymer molecular chains

通过对耦合共轭高分子双链中激子生成的动力学研究,讨论了受到光激发后,激子在分子内或分子间生成的制约因素.激子的生成除了受分子链间耦合强度的制约,还受到光激发模式的影响.结果表明,激子既可以在分子内生成,也可以在耦合分子间生成.增大分子之间的相互作用强度,可以增大在分子之间生成激子的概率.

By the dynamics study of exciton formation in two coupling molecular chains of conjugated polymer,the dominant formation mechanism of intra-molecule or inter-molecuole exciton is discussed after photo-excitation.Exction formation is controlled by the interaction strength of the molecules.Besides,It is also influenced by the pattern of the photoexctation.The results show that an exciton can form within a molecule,and it can also be created between two coupling molecules after photoexcitaton.Increasing the coupling strength of the molecules,the occasion of the exciton formed between the molecules is increased.