Inkjet-Printed Reduced Graphene Oxide/Poly(Vinyl Alcohol) Composite Electrodes for Flexible Transparent Organic Field-Effect Transistors
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- Title
- Inkjet-Printed Reduced Graphene Oxide/Poly(Vinyl Alcohol) Composite Electrodes for Flexible Transparent Organic Field-Effect Transistors
- Authors
- Lim, S; Kang, B; Kwak, D; Lee, WH; Lim, JA; Cho, K
- Date Issued
- 2012-04-05
- Publisher
- AMER CHEMICAL SOC
- Abstract
- 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.
- Keywords
- THIN-FILM TRANSISTORS; SELF-ASSEMBLED MONOLAYERS; ENERGY-LEVEL ALIGNMENT; GRAPHITE OXIDE; POLYMER; PENTACENE; MOBILITY; AU(111); SHEETS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15634
- DOI
- 10.1021/JP203441E
- ISSN
- 1932-7447
- Article Type
- Article
- Citation
- JOURNAL OF PHYSICAL CHEMISTRY C, vol. 116, no. 13, page. 7520 - 7525, 2012-04-05
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