Scalable residue-free graphene for surface-enhanced Raman scattering

IMR OpenIR

	Scalable residue-free graphene for surface-enhanced Raman scattering
	Hinnemo, Malkolm; Ahlberg, Patrik; Hagglund, Carl; Ren, Wencai; Cheng, Hui-Ming; Zhang, Shi-Li; Zhang, Zhi-Bin; zhibin.zhang@angstrom.uu.se
	2016
发表期刊	CARBON
ISSN	0008-6223
卷号	98 页码:567-571
摘要	A room-temperature polymer-assisted transfer process is developed for large-area, single-layer graphene grown by means of chemical vapor deposition (CVD). This process leads to transferred graphene layers free of polymer contamination. The absence of polymer residues boosts the surface-enhanced Raman scattering (SERS) of the CVD graphene with gold nanoparticles (Au NPs) deposited atop by evaporation. The SERS enhancement of the CVD graphene reaches similar to 120 for the characteristic 2D peak of graphene, the highest enhancement factor achieved to date, when the Au NPs are at the threshold of percolation. Our simulation supported by experiment suggests that the polymer residues persistently present on the graphene transferred by the conventional polymer-assisted method are equivalent to an ultrathin film of less than 1 nm thickness. The presence of polymer residues drastically reduces SERS due to the separation of the Au NPs from the underlying graphene. The scalability of CVD graphene opens up for the possibility of graphene-based SERS sensors. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[hinnemo, malkolm ; ahlberg, patrik ; hagglund, carl ; zhang, shi-li ; zhang, zhi-bin] uppsala univ, dept engn sci, angstrom lab, solid state elect, s-75121 uppsala, sweden ; [ren, wencai ; cheng, hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china
资助者	Knut and Alice Wallenberg Foundation [2011.0113, 2011.0082]; Swedish Foundation for Strategic Research [SE13-0061]; Swedish Research Council (VR) [621-2014-5591]
收录类别	sci
语种	英语
WOS记录号	WOS:000367233000070
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75106
专题	中国科学院金属研究所
通讯作者	zhibin.zhang@angstrom.uu.se
推荐引用方式 GB/T 7714	Hinnemo, Malkolm,Ahlberg, Patrik,Hagglund, Carl,et al. Scalable residue-free graphene for surface-enhanced Raman scattering[J]. CARBON,2016,98:567-571.
APA	Hinnemo, Malkolm.,Ahlberg, Patrik.,Hagglund, Carl.,Ren, Wencai.,Cheng, Hui-Ming.,...&zhibin.zhang@angstrom.uu.se.(2016).Scalable residue-free graphene for surface-enhanced Raman scattering.CARBON,98,567-571.
MLA	Hinnemo, Malkolm,et al."Scalable residue-free graphene for surface-enhanced Raman scattering".CARBON 98(2016):567-571.