• 文献标题:   Inkjet-Printed Reduced Graphene Oxide/Poly(Vinyl Alcohol) Composite Electrodes for Flexible Transparent Organic Field-Effect Transistors
  • 文献类型:   Article
  • 作  者:   LIM S, KANG B, KWAK D, LEE WH, LIM JA, CHO K
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF PHYSICAL CHEMISTRY C
  • ISSN:   1932-7447
  • 通讯作者地址:   Pohang Univ Sci Technol
  • 被引频次:   75
  • DOI:   10.1021/jp203441e
  • 出版年:   2012

▎ 摘  要

The characteristics of organic field-effect transistors (OFETs) prepared with inkjet-patterned reduced graphene oxide (RGO)/poly(vinylalcohol) (PVA) composite electrodes were studied. PVA was blended with graphite oxide to enhance exfoliation of the graphite sheets and to provide for stable inkjet printing. Multistep reduction based on a combination of chemical and thermal reduction was conducted to increase the conductivity. Use of the inkjet-patterned RGO/PVA electrodes increased field-effect mobility of the bottom-contact pentacene FETs to 0.23 cm(2)/(V.s), which was significantly enhanced relative to that of FETs with Au or PEDOT:PSS electrodes. Moreover, we successfully prepared all-organic flexible transparent OFETs using inkjet-patterned RGO/PVA electrodes on plastic substrates.