| Photoexcitation of Bipolarons in Conducting Polymers |
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| 作者姓名： | 李盛 龙德顺 |
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| 作者单位： | [1]StateKeyLaboratoryofSurfaceScienceandResearchCenterforTheoreticalPhysics,FudanUniversity,Shanghai200433 [2]StateKeyLaboratoryofSurfaceScienceandResearchCenterforTheoreticalPhysics,FudanUniversity,Shangha |
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| 摘 要： | We theoretically study the photoexcitation process in a conducting polymer with a non-degenerate ground state,where the carrier with out spin is a bipolaron.The dynamical simulation reveals a photoinduced phenomenon in which a positive bipolaron is split into two polarons by absorbing one photon.The relaxation time of this photoinduced bipolaron split is about 40fs.It is predicted that this photoinduced phenomenon can be detected experimentally by observing the change of magnetic susceptibility.
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| 关 键 词： | 聚合物 导电聚合物 双极化子光致激光 |
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