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碱式聚苯胺的高激发态极化子 被引量：1

Excited polaron in the pernigraniline-base polymer
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摘要 在改进的Ginder-Epstein模型下,得到了碱式聚苯胺的高激发态极化子.同普通极化子对比,它的晶格畸变更宽、更深,带隙中的两个缺陷能级更接近,其理论吸收谱只有一个低能峰(～1.2eV)并且强度提高～60%.取中等强度的电子—芳环扭角耦合,则高激发态极化子的激发能为17.75eV,较普通极化子的激发能提高1.22eV.这些差异为区分两类极化子提供了判据. Excited polaron in the pernigraniline-base polymer was investigated in an extended Ginder-Epstein model.In comparison with a common polaron,the excited showed some different nature:its lattice relaxasion was wider and deeper;the two gap levels got nearer.In our calculated absorbance for the excited polaron there was only one peak of low energy(～1.2 eV)and its intensity got a rise of ～60%.In the case of medium electron-libron coupling,energy of excitation for an excited polaron was 17.75 eV,which was 1.22 eV higher than that of the common.The facts offered a criterion to distinguish an excited polaron from a common one.
作者 李奎荣 刘杰
机构地区 四川师范大学物理与电子工程学院固体物理研究所
出处 《原子与分子物理学报》 CAS CSCD 北大核心 2009年第2期219-223,共5页 Journal of Atomic and Molecular Physics
基金 四川省教育厅自然科学重点项目(07ZA095)
关键词 聚合物 电子结构 缺陷能级 极化子 polymer electronic structure defect levels polaron
分类号 O521.2 [理学—高压高温物理]
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参考文献10

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同被引文献19

  • 1张永强,李元,李冬梅,刘文,刘德胜,解士杰.一维导电共聚物中极化子输运的动力学研究[J].原子与分子物理学报,2007,24(3):493-499. 被引量：8
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  • 7Ghosh S. Long-range interactions in the quantum many-body problem in one dimension: Ground state[J]. Phys. Rev. E, 25~:, 69.. 036118.
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原子与分子物理学报
2009年 第2期

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