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다차원 탄소재료 연구단
다차원 탄소재료 연구단
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Conversion of Langmuir-Blodgett monolayers and bilayers of poly (amic acid) through polyimide to graphene

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Title
Conversion of Langmuir-Blodgett monolayers and bilayers of poly (amic acid) through polyimide to graphene
Author(s)
Hye Jin Jo; Ji Hong Lyu; Rodney S. Ruoff; Hyunseob Lim; Seong In Yoon; Hu Young Jeong; Tae Joo Shin; Christopher W. Bielawski; Hyeon Suk Shin
Publication Date
2017-03
Journal
2D MATERIALS, v.4, no.1, pp.014005 -
Publisher
IOP PUBLISHING LTD
Abstract
Various solid carbon sources, particularly poly(methyl methacrylate), have been used as precursors to graphene. The corresponding growth process generally involves the decomposition of the solids to hydrocarbon gases followed by their adsorption on metallic substrates (e.g., Cu). We report a different approach that uses a thermally-resistant polyimide (PI) as a carbon precursor. Langmuir-Blodgett films of poly(amic acid) (PAA) were transferred to copper foils and then converted to graphene via a PI intermediate. The Cu foil substrate was also discovered to facilitate the orientation of aromatic moieties upon carbonization process of the PI. As approximately 50% of the initial quantity of the PAA was found to remain at 1000 degrees C, thermally-stable polymers may reduce the quantity of starting material required to prepare high quality films of graphene. Graphene grown using this method featured a relatively large domain size and an absence of adventitious adlayers ©2016 IOP Publishing Ltd
URI
https://pr.ibs.re.kr/handle/8788114/3547
ISSN
2053-1583
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
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