极化子单激发态的反向极化研究  

Inversed polarization of the single excited state of polaron

作　　者：高琨[1] 刘晓静[1] 刘德胜[1] 解士杰[1] 

机构地区：[1]山东大学物理与微电子学院,晶体材料国家重点实验室,济南250100

出　　处：《物理学报》2005年第11期5324-5328,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:50323006;10474056;90403110)资助的课题.~~

摘　　要：通过对有机高分子中极化子的单激发态进行研究,发现该态在外电场下呈现反向极化特征,极化规律与双激子态类似.在强电场下,反向极化消失,极化子单激发态解离为一个单极化子和一个双极化子态.The single excited state of a polaron in polymers has been studied. It was found that its polarization is negative under an extemal electric field. The single excited state of a polaron has a similar behavior with that of a biexciton. The inversed polarization will disappear under a strong electric field and the single excited state of a polaron will dissociate into a polaron and a bipolaron.

关 键 词：极化子态 激子态 反向极化 双极化子 反向极化 激发态 有机高分子 极化特征 双激子态 外电场 强电场 类似 

分 类 号：O471.3[理学—半导体物理]