Annealing free, clean graphene transfer using alternative polymer scaffolds

被引：134

作者：

Wood, Joshua D. ^{[1
,2
,3
]}

Doidge, Gregory P. ^{[1
,2
,3
]}

Carrion, Enrique A. ^{[1
,3
]}

Koepke, Justin C. ^{[1
,2
,3
]}

Kaitz, Joshua A. ^{[2
,4
]}

Datye, Isha ^{[1
,2
,3
]}

Behnam, Ashkan ^{[1
,3
]}

Hewaparakrama, Jayan ^{[1
,3
]}

Aruin, Basil ^{[1
,2
]}

Chen, Yaofeng ^{[1
,2
]}

Dong, Hefei ^{[2
,4
]}

Haasch, Richard T. ^{[5
]}

Lyding, Joseph W. ^{[1
,2
]}

Pop, Eric ^{[6
]}

机构：

[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

[2] Univ Illinois, Beckman Inst, Urbana, IL 61801 USA

[3] Univ Illinois, Micro & Nanotechnol Lab, Urbana, IL 61801 USA

[4] Univ Illinois, Dept Chem, Urbana, IL 61801 USA

[5] Univ Illinois, Mat Res Lab, Urbana, IL 61801 USA

[6] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA

来源：

NANOTECHNOLOGY | 2015年 / 26卷 / 05期

基金：

美国国家科学基金会;

关键词：

transfer; graphene; polymers; contaminants; chemical vapor deposition; layering; LARGE-AREA GRAPHENE; RAMAN; FILMS; GROWTH; METHACRYLATE); BOUNDARIES; SCATTERING; SUBSTRATE; SPECTRA; WATER;

D O I：

10.1088/0957-4484/26/5/055302

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We examine the transfer of graphene grown by chemical vapor deposition (CVD) with polymer scaffolds of poly(methyl methacrylate) (PMMA), poly(lactic acid) (PLA), poly(phthalaldehyde) (PPA), and poly(bisphenol A carbonate) (PC). We find that optimally reactive PC scaffolds provide the cleanest graphene transfers without any annealing, after extensive comparison with optical microscopy, x-ray photoelectron spectroscopy, atomic force microscopy, and scanning tunneling microscopy. Comparatively, films transferred with PLA, PPA, PMMA/PC, and PMMA have a two-fold higher roughness and a five-fold higher chemical doping. Using PC scaffolds, we demonstrate the clean transfer of CVD multilayer graphene, fluorinated graphene, and hexagonal boron nitride. Our annealing free, PC transfers enable the use of atomically-clean nanomaterials in biomolecule encapsulation and flexible electronic applications.

引用

页数：9

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