| 聚对苯乙炔的基态、极化子与双极化子激发态及其稳定性 |
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| 引用本文： | 刘德胜,赵俊卿,魏建华,解士杰,梅良模.聚对苯乙炔的基态、极化子与双极化子激发态及其稳定性[J].物理学报,1999,48(7):1327-1333. |
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| 作者姓名： | 刘德胜 赵俊卿 魏建华 解士杰 梅良模 |
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| 作者单位： | 山东大学物理系,济南 250100 |
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| 基金项目： | 国家自然科学基金(批准号：59871024)资助的课题. |
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| 摘 要： | 提出了描述聚对苯乙炔(PPV)晶格及电子结构的物理模型，并在该模型的基础上给出了PPV的基态及可能的极化子、双极化子激发态，并对影响激发态稳定性的因素进行了研究.
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| 关 键 词： | 聚对苯乙炔 基态极化子 激发态 稳定性 |
| 收稿时间： | 1998-11-02 |
GROUND STATE, POLARON AND BIPOLARON EXCITATIONS AND THEIR STABILITY IN PPV |
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| LIU DE-SHENG,ZHAO JUN-QING,WEI JIAN-HUA,XIE SHI-JIE and MEI LIANG-MO.GROUND STATE, POLARON AND BIPOLARON EXCITATIONS AND THEIR STABILITY IN PPV[J].Acta Physica Sinica,1999,48(7):1327-1333. |
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| Authors: | LIU DE-SHENG ZHAO JUN-QING WEI JIAN-HUA XIE SHI-JIE and MEI LIANG-MO |
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| Abstract: | A tight-binding model for conducting polymer poly(phenylene vinylene) (PPV) has been suggested in the framework of one-dimensional chains. The calculations showed that this model is effective to describe the ground state, polaron and bipolaron excitations in PPV. The stability of polarons and bipolarons was discussed by considering the effect of the dimensions, e-ph and e-e interactions. |
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