Preparation of uncurled and planar multilayered graphene using polythiophene derivatives via liquid-phase exfoliation of graphite

Iguchi, Hiroki; Miyahara, Koki; Higashi, Chisato; Fujita, Keisuke; Nakagawa, Naoki; Tamba, Shunsuke; Mori, Atsunori; Yoshitani, Hiroshi; Nakasuga, Akira; Maruyama, Tatsuo

https://hdl.handle.net/20.500.14094/90005135

このアイテムのアクセス数:12件（2024-04-26 11:25 集計）

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メタデータID	90005135
アクセス権	open access
出版タイプ	Accepted Manuscript
タイトル	Preparation of uncurled and planar multilayered graphene using polythiophene derivatives via liquid-phase exfoliation of graphite
著者	Iguchi, Hiroki ; Miyahara, Koki ; Higashi, Chisato ; Fujita, Keisuke ; Nakagawa, Naoki ; Tamba, Shunsuke ; Mori, Atsunori ; Yoshitani, Hiroshi ; Nakasuga, Akira ; Maruyama, Tatsuo
著者名 Iguchi, Hiroki
著者名 Miyahara, Koki
著者名 Higashi, Chisato
著者名 Fujita, Keisuke
著者名 Nakagawa, Naoki
著者名 Tamba, Shunsuke
著者ID A0132 研究者ID 1000090210111 KUID https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=7d6c575d6eaeaeac520e17560c007669 著者名 Mori, Atsunori 森, 敦紀モリ, アツノリ所属機関名先端膜工学研究センター
著者名 Yoshitani, Hiroshi
著者名 Nakasuga, Akira
著者ID A1709 研究者ID 1000030346811 KUID https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=9932913cd2f5b830520e17560c007669 著者名 Maruyama, Tatsuo 丸山, 達生マルヤマ, タツオ所属機関名工学研究科
収録物名	FlatChem
巻(号)	8
ページ	31-39
出版者	Elsevier B.V.
刊行日	2018-03
公開日	2020-04-01
抄録	We have investigated the effects of the preparation conditions of polythiophene/graphene complexes on their dispersion in organic solvents, and on the in-solution morphology of the multilayered graphene. Among four different regioregular polythiophene derivatives synthesized, poly(3-hexylthiophene) (P3HT) with a low molecular weight (Mn 6000) was the most effective derivative for exfoliating graphite and for dispersing the multilayered graphene in toluene. Spectroscopic analysis revealed that P3HT interacted strongly with graphene to form a P3HT/graphene complex. We investigated the in situ morphology of multilayered graphene in organic solvents, using a flow particle image analyzer (FPIA) and revealed that the presence of polythiophenes produced larger P3HT/graphene complexes than that prepared in N-methylpyrrolidone (NMP). Microscopy analysis demonstrated that graphite flakes and multilayered graphene shrunk in the absence of P3HT when drying in organic solvents. The presence of P3HT immobilized the extended morphology of the multilayered graphene by forming the complex. This prevented shrinkage of the multilayered graphene when drying in toluene. Transmission electron, atomic force and field-emission scanning electron microscopy observations revealed that the P3HT/graphene complex consisted of relatively flat and ultrathin multilayered graphene of approximately <10 nm in thickness. The polythiophene/graphene complexes had high electrical conductivity, which depended on the kinds of polythiophenes. These findings further our understanding of the morphology of multilayered graphene, and will promote the development of uncurled multilayered graphene.
キーワード	In-situ morphology
	Graphene nanosheets
	Polythiophene
	Wrinkleless
カテゴリ	工学研究科
	先端膜工学研究センター
	学術雑誌論文
権利	© 2018 Elsevier B.V.
権利	This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

資源タイプ	journal article
言語	English (英語)
eISSN	2452-2627　OPACで所蔵を検索　 CiNiiで学外所蔵を検索
関連情報	DOI https://doi.org/10.1016/j.flatc.2018.03.003

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