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김성엽

Kim, Sung Youb
Computational Advanced Nanomechanics Lab.
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Highly Conductive and Environmentally Stable Organic Transparent Electrodes Laminated with Graphene

Author(s)
Chu, Jae HwanLee, Do HeeJo, JunhyeonKim, Sung YoubYoo, Jung-WooKwon, Soon-Yong
Issued Date
2016-10
DOI
10.1002/adfm.201602125
URI
https://scholarworks.unist.ac.kr/handle/201301/20458
Fulltext
http://onlinelibrary.wiley.com/doi/10.1002/adfm.201602125/abstract
Citation
ADVANCED FUNCTIONAL MATERIALS, v.26, no.40, pp.7234 - 7243
Abstract
Improving the lifetime and the operational and thermal stability of organic thin-film materials while maintaining high conductivity and mechanical flexibility is critical for flexible electronics applications. Here, we report that highly conductive and environmentally stable organic transparent electrodes (TEs) can be fabricated by mechanically laminating poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) films containing dimethylsulfoxide and Zonyl fluorosurfactant (PDZ films) with a monolayer graphene barrier. The proposed lamination process allows graphene to be coated onto the PDZ films uniformly and conformally with tight interfacial binding, free of wrinkles and air gaps. The laminated films exhibit an outstanding room-temperature hole mobility of ~85.1 cm2/Vs since the graphene can serve as an effective bypass for charge carriers. The significantly improved stability of the graphene-laminated TEs against high mechanical/thermal stress, humidity and ultraviolet irradiation is particularly promising. Furthermore, the incorporation of the graphene barrier increases the expected lifetime of the TEs by more than two orders of magnitude.
Publisher
WILEY-V C H VERLAG GMBH
ISSN
1616-301X
Keyword
POLYMER SOLAR-CELLSFIELD-EFFECT TRANSISTORSTHIN-FILM TRANSISTORSPREDICT THERMAL LIFETHERMOGRAVIMETRIC ANALYSISPEDOT-PSSELECTROCHEMICAL TRANSISTORSSEMICONDUCTING POLYMERSHIGH-MOBILITYENHANCEMENT

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