Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 116, Issue 13, Pages 7520-7525Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp203441e
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Funding
- Center for Advanced Soft Electronics of the Ministry of Education, Science and Technology, Korea [2011-0031627]
- National Research Foundation of Korea [2011-0031628] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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.
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