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Modulated Thermoelectric Properties of Organic Semiconductors Using Field-Effect Transistors

机译：使用场效应晶体管的有机半导体的调制热电特性

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摘要

Organic thermoelectric materials, which can transform heat flow into electricity, have great potential for flexible, ultra-low-cost and large-area thermoelectric applications. Despite rapid developments of organic thermoelectric materials, exploration and investigation of promising organic thermoelectric semiconductors still remain as a challenge. Here, the thermoelectric properties of several p- and n-type organic semiconductors are investigated and studied, in particular, how the electric field modulations of the Seebeck coefficient in organic field-effect transistors (OFETs) compare with the Seebeck coefficient in chemically doped films. The extracted relationship between the Seebeck coefficient (S) and electrical conductivity (sigma) from the field-effect transistor (FET) geometry is in good agreement with that of chemically doped films, enabling the investigation of the trade-off relationship among sigma, S, carrier concentration, and charging level. The results make OFETs an effective candidate for the thermoelectric studies of organic semiconductors.
机译：可以将热流转化为电能的有机热电材料在柔性，超低成本和大面积热电应用中具有巨大的潜力。尽管有机热电材料发展迅速，但对有前途的有机热电半导体的探索和研究仍然是一个挑战。在这里，研究和研究了几种p型和n型有机半导体的热电特性，特别是如何比较有机场效应晶体管（OFET）中塞贝克系数的电场调制与化学掺杂膜中塞贝克系数的比较。从场效应晶体管（FET）几何形状中提取的塞贝克系数（S）和电导率（sigma）之间的关系与化学掺杂膜的关系很一致，从而可以研究sigma与S之间的权衡关系，载流子浓度和充电水平。结果使OFETs成为有机半导体热电研究的有效候选者。

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  • 来源
    《Advanced Functional Materials》 |2015年第20期|3004-3012|共9页
  • 作者

    Zhang Fengjiao; Zang Yaping; Huang Dazhen; Di Chong-an; Gao Xike; Sirringhaus Henning; Zhu Daoben;

  • 作者单位

    Univ Chinese Acad Sci, Beijing 100049, Peoples R China|Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China;

    Univ Chinese Acad Sci, Beijing 100049, Peoples R China|Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China;

    Univ Chinese Acad Sci, Beijing 100049, Peoples R China|Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Shanghai Inst Organ Chem, Lab Synthet & Self Assembly Chem Organ Funct Mol, Shanghai 200032, Peoples R China;

    Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England;

    Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    field-effect transistor; organic semiconductors; thermoelectric;

    机译：场效应晶体管;有机半导体;热电;

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