High-Quality Uniform Dry Transfer of Graphene to Polymers

Lock, Evgeniya H.; Baraket, Mira; Laskoski, Matthew; Mulvaney, Shawn P.; Lee, Woo K.; Sheehan, Paul E.; Hines, D. R.; Robinson, Jeremy T.; Tosado, Jacob; Fuhrer, Michael S.; Hernández, Sandra C.; Walton, Scott G.

doi:10.1021/nl203058s

Cited by 126 publications

(90 citation statements)

References 26 publications

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“…14, 6 15 Although thermal annealing under various gas environments has been employed to burn out the PMMA residue, it has been found that polymer residue cannot be completely removed from the sample surface. [15][16][17][18][19] In this work, annealing of the h-BN sample in air for 3 hours at 300 o C was found to be ineffective in removing the PMMA residue. …”

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confidence: 77%

Thermal Conductivity and Phonon Transport in Suspended Few-Layer Hexagonal Boron Nitride

et al. 2013

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The thermal conductivity of suspended few-layer hexagonal boron nitride (h-BN was measured using a micro-bridge device with built-in resistance thermometers. Based on the measured thermal resistance values of 11-12 atomic layer h-BN samples with suspended length ranging between 3 and 7.5 m, the room-temperature thermal conductivity of a 11-layer sample was found to be about 360 Wm -1 K -1 , approaching the basal plane value reported for bulk h-BN.The presence of a polymer residue layer on the sample surface was found to decrease the thermal conductivity of a 5-layer h-BN sample to be about 250 Wm -1 K -1 at 300 K. Thermal conductivities for both the 5 layer and the 11 layer samples are suppressed at low temperatures, suggesting increasing scattering of low frequency phonons in thin h-BN samples by polymer residue.

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confidence: 77%

Thermal Conductivity and Phonon Transport in Suspended Few-Layer Hexagonal Boron Nitride

et al. 2013

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“…First, it provides a platform not only for investigating the properties of pristine graphene, including many-body interaction, Dirac-fermion physics, but also for constructing a variety of quasi-freestanding Van der Waals heterostructures with other 2D materials 31,32 . Second, by combining well-developed graphene transfer methods 12,33,34 , for example, the bubbling transfer based on water electrolysis process which is nondestructive to both graphene and the Pt(111) substrate 12 , the as-grown epitaxial graphene can be transferred to other substrate for device applications, and the Pt(111) substrate can be recycled for repeated growth. Corresponding Author * E-mail: syzhou@mail.tsinghua.edu.cn…”

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confidence: 99%

Monolayer charge-neutral graphene on platinum with extremely weak electron-phonon coupling

et al. 2015

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Epitaxial growth of graphene on transition metal substrates is an important route for obtaining large scale graphene. However, the interaction between graphene and the substrate often leads to multiple orientations, distorted graphene band structure, large doping and strong electron-phonon coupling. Here we report the growth of monolayer graphene with high crystalline quality on Pt(111) substrate by using very low concentration of internal carbon source with high annealing temperature. The controlled growth leads to electronically decoupled graphene: it is nearly charge neutral and has extremely weak electron-phonon coupling (coupling strength λ ≈ 0.056) as revealed by angle-resolved photoemission spectroscopic measurements. The thermodynamics and kinetics of carbon diffusion process is investigated by DFT calculation. Such graphene with negligible graphene-substrate interaction provides an important platform for fundamental research as well as device applications when combined with nondestructive sample transfer technique.

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“…Other PMMA-free techniques have been investigated, including using thermal release tape as the transfer membrane (10), directly transferring onto polydimethylsiloxane (PDMS) (12,19), or using particular functional groups to attach graphene to other flexible substrates (20,21). Nevertheless, the types of substrates investigated have been limited [polyethylene terephthalate (PET), PDMS, or polystyrene], and such techniques often leave other unwanted residues, which can degrade the quality of the graphene (10,12,19,21). Fig.…”

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confidence: 99%

Direct transfer of graphene onto flexible substrates

Martins

Song²,

Zeng³

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

177

128

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In this paper we explore the direct transfer via lamination of chemical vapor deposition graphene onto different flexible substrates. The transfer method investigated here is fast, simple, and does not require an intermediate transfer membrane, such as polymethylmethacrylate, which needs to be removed afterward. Various substrates of general interest in research and industry were studied in this work, including polytetrafluoroethylene filter membranes, PVC, cellulose nitrate/cellulose acetate filter membranes, polycarbonate, paraffin, polyethylene terephthalate, paper, and cloth. By comparing the properties of these substrates, two critical factors to ensure a successful transfer on bare substrates were identified: the substrate's hydrophobicity and good contact between the substrate and graphene. For substrates that do not satisfy those requirements, polymethylmethacrylate can be used as a surface modifier or glue to ensure successful transfer. Our results can be applied to facilitate current processes and open up directions for applications of chemical vapor deposition graphene on flexible substrates. A broad range of applications can be envisioned, including fabrication of graphene devices for opto/ organic electronics, graphene membranes for gas/liquid separation, and ubiquitous electronics with graphene.

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High-Quality Uniform Dry Transfer of Graphene to Polymers

Cited by 126 publications

References 26 publications

Thermal Conductivity and Phonon Transport in Suspended Few-Layer Hexagonal Boron Nitride

Thermal Conductivity and Phonon Transport in Suspended Few-Layer Hexagonal Boron Nitride

Monolayer charge-neutral graphene on platinum with extremely weak electron-phonon coupling

Direct transfer of graphene onto flexible substrates

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