Fast and simple fabrication of a large transparent chemically-converted graphene film by spray-coating

被引：308
作者：
Pham, Viet Hung [1 ]
Cuong, Tran Viet [1 ]
Hur, Seung Hyun [1 ]
Shin, Eun Woo [1 ]
Kim, Jae Seong [1 ]
Chung, Jin Suk [1 ]
Kim, Eui Jung [1 ]
机构：
[1] Univ Ulsan, Sch Chem Engn & Bioengn, Ulsan 680749, South Korea
来源：
CARBON | 2010年 / 48卷 / 07期
关键词：
AQUEOUS DISPERSIONS; OXIDE-FILMS; CONDUCTIVITY; REDUCTION;
D O I：
10.1016/j.carbon.2010.01.062
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We report the fast, low-cost, simple fabrication of a large chemically-converted graphene (CCG) films by spray deposition of graphene oxide (GO)-hydrazine dispersions. The GO-hydrazine dispersion was prepared by mixing GO dispersion with excess amount of hydrazine monohydrate. By spray deposition on preheated substrate, the creation of the thin film and the reduction of GO to CCG were carried out simultaneously. The prepared CCG films had a low sheet resistance of 2.2 x 10(3) Omega square(-1) and a high transmittance of 84% at a wavelength of 550 nm. Atomic force microscope images clearly showed continuous films resulting from the overlap of graphene sheets and a uniform surface morphology with root mean square about 1 nm. (C) 2010 Elsevier Ltd. All rights reserved.
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收藏
页码：1945 / 1951
页数：7
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