Improved Thermoelectric Properties of PEDOT:PSS Nanofilms Treated with Oxalic Acid

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• 作者：Congcong Liu ; Hui Shi ; Jingkun Xu ; Qinglin Jiang…
• 关键词：PEDOT ; PSS ; oxalic acid (OA) ; nanofilms ; thermoelectric
• 刊名：Journal of Electronic Materials
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：44
• 期：6
• 页码：1791-1795
• 全文大小：2,478 KB
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• 作者单位：Congcong Liu (1)
  Hui Shi (1)
  Jingkun Xu (1)
  Qinglin Jiang (1)
  Haijun Song (1)
  Zhengyou Zhu (1)
  
  1. Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Optical and Electronic Materials
  Characterization and Evaluation Materials
  Electronics, Microelectronics and Instrumentation
  Solid State Physics and Spectroscopy
  
• 出版者：Springer Boston
• ISSN：1543-186X

文摘

Poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) nanofilms were prepared by a simple spin-coating method. The thermoelectric properties of PEDOT:PSS nanofilms were improved by treatment with different concentrations of oxalic acid at 140°C. The electrical conductivity of PEDOT:PSS nanofilms can be improved from 0.48 to over 800?S?cm?, that is, by a factor of more than 1600 higher than for untreated PEDOT:PSS films. The Seebeck coefficient of the PEDOT:PSS nanofilms decreases slightly and the electrical conductivity increases. The maximum power factor of PEDOT:PSS nanofilms is up to 6.96?μW?m??K?. Atomic force microscopy and x-ray photoelectron spectroscopy were conducted to characterize the PEDOT:PSS nanofilms.