A method to estimate adhesion energy of as-grown graphene in a roll-to-roll dry transfer process

Hong, Nan; Zhao, Qishen; Chen, Dongmei; Liechti, Kenneth M.; Li, Wei

doi:10.1016/j.carbon.2022.08.062

Cited by 10 publications

(3 citation statements)

References 24 publications

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“…Na et al 14 further showed that the rate of delamination was key to obtaining successful transfer from the desired interface under nominally mode I fracture conditions. More recently, adhesion energy measurements between copper foil and graphene were obtained using roll-to-roll dry transfer by Hong et al 15 to transfer large area graphene from copper foil using PVA. Adopting the dry transfer method for copper foil might present some challenges due to the compliance and lack of mechanical rigidity of the foils.…”

Section: Introductionmentioning

confidence: 99%

Direct Metal-Free Growth and Dry Separation of Bilayer Graphene on Sapphire: Implications for Electronic Applications

Mohan,

Kireev,

Kutagulla

et al. 2023

ACS Appl. Nano Mater.

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The rate at which graphene is used in different fields of science and engineering has only increased over the past decade and shows no indication of saturating. At the same time, the most common source of high-quality graphene is through chemical vapor deposition (CVD) growth on copper foils with subsequent wet transfer steps that bring environmental problems and technical challenges due to the compliance of copper foils. To overcome these issues, thin copper films deposited on silicon wafers have been used, but the high temperatures required for graphene growth can cause dewetting of the copper film and consequent challenges in obtaining uniform growth. In this work, we explore sapphire as a substrate for the direct growth of graphene without any metal catalyst at conventional metal CVD temperatures. First, we found that annealing the substrate prior to growth was a crucial step to improve the quality of graphene that can be grown directly on such substrates. The graphene grown on annealed sapphire was uniformly bilayer and had some of the lowest Raman D/G ratios found in the literature. In addition, dry transfer experiments have been performed that have provided a direct measure of the adhesion energy, strength, and range of interactions at the sapphire/graphene interface. The adhesion energy of graphene to sapphire is lower than that of graphene grown on copper, but the strength of the graphene–sapphire interaction is higher. The quality of the several centimeter scale transfer was evaluated using Raman, SEM, and AFM as well as fracture mechanics concepts. Based on the evaluation of the electrical characteristics of the graphene synthesized in this work, this work has implications for several potential electronic applications.

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Section: Introductionmentioning

confidence: 99%

Direct Metal-Free Growth and Dry Separation of Bilayer Graphene on Sapphire: Implications for Electronic Applications

Mohan,

Kireev,

Kutagulla

et al. 2023

ACS Appl. Nano Mater.

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“…Since the residues of the polymer support layer adversely affect the final properties of graphene, considerable effort is required to get rid of the residues . Various innovative graphene transfer methods have been proposed that either do not use a support layer or reduce the negative effects of the support layer. − …”

Section: Introductionmentioning

confidence: 99%

Transfer of CVD-Graphene on Real-World Surfaces in an Eco-Friendly Manner

Yılmaz

Gürsoy

Şakalak

et al. 2023

ACS Appl. Eng. Mater.

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Here we report a one-step and all-dry transfer method for transfer of chemical vapor deposited graphene (CVD-graphene) on different application surfaces using pressure sensitive adhesive (PSA) material as the transfer medium, which is deposited on the application surface by the initiated CVD (iCVD) method in the form of a thin film. The as-deposited PSA film is a copolymer of acrylic acid and ethylhexyl acrylate, in which the relative amount of each component was shown to be a determining factor for the proper adjustment of the adhesive force required for the adhesion-based transfer process. With the help of the thin PSA film on the real-world application surface, graphene transfer was achieved with ease and at high quality by just peeling off the copper substrate, where CVD-graphene was initially deposited. With the all-dry and eco-friendly transfer procedure outlined in this study, it was possible to transfer graphene to a flexible large-area PET substrate (10 cm × 10 cm) on which higher conductivity values were obtained from the I− V experiments as compared with the graphene transferred using the classical wet approach.

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“…Several dry transfer methods, such as the use of thermal release tapes, polyvinyl alcohol (PVA), polydimethylsiloxane, polyethylene terephthalate (PET)/ethylene vinyl acetate, and electrochemical delamination have been proposed. [20][21][22][23][24][25][26][27] Most dry methods require a high-level skill, experience, and a suitable facility.…”

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confidence: 99%

Quantum Hall effect in graphene transferred by water-soluble transfer sheet and home-use laminator

Suzuki,

Ichiki,

Kitazaki

et al. 2023

Jpn. J. Appl. Phys.

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For electronic device applications, large-area graphene grown on a metal catalyst by chemical vapor depositionrequires a transfer to an insulating substrate. Previously, a transfer method that uses water-solublepolyvinyl alcohol and a laminator was proposed. The method is simple, harmless, and does not require advancedfacilities. Based on this method, we fabricated fine patterns on graphene transferred onto a SiO2/Sisubstrate using lithography and investigated their transport properties. The carrier is controlled between theelectrons and holes. The quantum Hall effect is observed at low temperatures. This method can be an optionfor graphene device production.

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A method to estimate adhesion energy of as-grown graphene in a roll-to-roll dry transfer process

Cited by 10 publications

References 24 publications

Direct Metal-Free Growth and Dry Separation of Bilayer Graphene on Sapphire: Implications for Electronic Applications

Direct Metal-Free Growth and Dry Separation of Bilayer Graphene on Sapphire: Implications for Electronic Applications

Transfer of CVD-Graphene on Real-World Surfaces in an Eco-Friendly Manner

Quantum Hall effect in graphene transferred by water-soluble transfer sheet and home-use laminator

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