High-Quality Monolithic Graphene Films via Laterally Stitched Growth and Structural Repair of Isolated Flakes for Transparent Electronics

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	High-Quality Monolithic Graphene Films via Laterally Stitched Growth and Structural Repair of Isolated Flakes for Transparent Electronics
	Sun, Hongyan; Li, Xinming; Li, Yuanchang; Chen, Guoxin; Liu, Zhiduo; Alam, Fakhr E.; Dai, Dan; Li, Li; Tao, Li; Xu, Jian-Bin
刊名	CHEMISTRY OF MATERIALS
	2017
卷号	29 期号:18 页码:7808-7815
ISSN号	0897-4756
英文摘要	Exfoliation of graphene flakes in solution is a high-yield and low-cost synthesis method, but the quality of the obtained graphene flakes is not high, because of the presence of functional groups and structural defects. Therefore, the ability to synthesize high-quality graphene with excellent electrical properties is desirable for electronic applications. Here, we present a facile and rapid annealing approach with nickel for structural repair in isolated graphene flakes on rough insulating substrates, accompanied by lateral stitching of the isolated parts to form a continuous and monolithic film. This process involves the active carbon species being coalesced at the desaturation edge of graphene flakes. Meanwhile, the defects in graphene can be also repaired to improve its crystal quality and electrical properties. Significantly, the carrier mobility of graphene with excellent structural properties is > 1000 cm(2) V-1 s(-1) on average, nearly 10 times higher than that of the process with copper or 100 times higher than that of graphene via mere annealing. This approach to high-quality graphene on rough insulating substrates, with transfer-free and well-adapted characteristics, is promising for electronic and optoelectronic applications.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13609]
专题	2017专题
推荐引用方式 GB/T 7714	Sun, Hongyan,Li, Xinming,Li, Yuanchang,et al. High-Quality Monolithic Graphene Films via Laterally Stitched Growth and Structural Repair of Isolated Flakes for Transparent Electronics[J]. CHEMISTRY OF MATERIALS,2017,29(18):7808-7815.
APA	Sun, Hongyan.,Li, Xinming.,Li, Yuanchang.,Chen, Guoxin.,Liu, Zhiduo.,...&Lin, Cheng-Te.(2017).High-Quality Monolithic Graphene Films via Laterally Stitched Growth and Structural Repair of Isolated Flakes for Transparent Electronics.CHEMISTRY OF MATERIALS,29(18),7808-7815.
MLA	Sun, Hongyan,et al."High-Quality Monolithic Graphene Films via Laterally Stitched Growth and Structural Repair of Isolated Flakes for Transparent Electronics".CHEMISTRY OF MATERIALS 29.18(2017):7808-7815.