Oil boundary approach for sublimation enabled camphor mediated graphene transfer

Chandrashekar, Bananakere Nanjegowda; Cai, Nianduo; Liu, Louis Wy; Shankaregowda, Smitha Ankanahalli; Wu, Zefei; Chen, Pengcheng; Shi, Run; Wang, Jingwei; Tang, Chunmei; Cheng, Chun

doi:10.1016/j.jcis.2019.03.053

Cited by 14 publications

(16 citation statements)

References 49 publications

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“…Effective transfer is evidenced by the small D peak in the Raman spectrum (the D peak is related to the presence of defects in the graphene structure) and high transmittance (Figs. 3(c) and 3(d), respectively) [44]. PMMA generally disrupts the sp 2 nature of graphitic carbon (facilitating sp 3 hybridization), which results in strong PMMA-graphene interactions.…”

Section: Wet Transfermentioning

confidence: 99%

Graphene transfer methods: A review

et al. 2021

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Graphene is a material with unique properties that can be exploited in electronics, catalysis, energy, and bio-related fields. Although, for maximal utilization of this material, high-quality graphene is required at both the growth process and after transfer of the graphene film to the application-compatible substrate. Chemical vapor deposition (CVD) is an important method for growing high-quality graphene on non-technological substrates (as, metal substrates, e.g., copper foil). Thus, there are also considerable efforts toward the efficient and non-damaging transfer of quality of graphene on to technologically relevant materials and systems. In this review article, a range of graphene current transfer techniques are reviewed from the standpoint of their impact on contamination control and structural integrity preservation of the as-produced graphene. In addition, their scalability, cost- and time-effectiveness are discussed. We summarize with a perspective on the transfer challenges, alternative options and future developments toward graphene technology.

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Section: Wet Transfermentioning

confidence: 99%

Graphene transfer methods: A review

et al. 2021

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“…[ 156 ] Camphor can be used as a sublimable support (Figure 6c). [ 157 ] The adsorption energy of camphor/graphene is 0.09 eV. It is one of the lowest adsorption energies found in all reported transfer agents.…”

Section: Transfer Of Large‐area Graphene Synthesized By Cvd Techniquementioning

confidence: 99%

Section: Transfer Of Large‐area Graphene Synthesized By Cvd Techniquementioning

confidence: 99%

“…Less residue contamination; low surface roughness; versatile to different target substrates; removal can be accomplished by evaporation or sublimation; [148,157] weak interaction with graphene; high solubility in organic solvents; [154,156,157] reduce wrinkles [50] Mechanically vdW interaction (PDMS/PVA/PMMA/ hBN, [181,182] TRT/hBN [172] ) lithography process. [105,106] Exposure to polymers will inevitably contaminate the surface of graphene, which cannot be fully removed by standard chemical solvents.…”

Section: Pmma-assisted Transfermentioning

confidence: 99%

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Recent Progress in the Transfer of Graphene Films and Nanostructures

Gao

Chen

et al. 2021

Small Methods

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electronics, [9] photonics, [10,11] biosensors, [12,13] etc.One reason that graphene research has developed so fast is the relatively simple and cheap production procedures. Many production approaches have been established, such as top-down approaches, including: mechanical exfoliation, [14] liquid phase exfoliation, [15] reduction of graphene oxide (GO), [16] and electrochemical exfoliation, [17] etc.; as well as bottomup approaches, including: epitaxial growth on SiC, [18] chemical vapor deposition (CVD), [19] etc. Among these approaches, CVD on metal substrates has been widely used to synthesize high quality, large-area graphene (LAG) films. The production of square meters of graphene has been realized, and the state of art devices have been demonstrated. [20] CVD graphene films are ready for applications like transparent conductive films, [20,21] wearable transparent sensors, [22] and ionic/molecular nanofiltration membrane. [23] Despite graphene's extraordinary electronic properties and fast progress in production, zero bandgap of graphene hinders the application of graphene as an electronic transistor. [24] One solution is to engineer graphene into graphene nanostructures (GNs), e.g., graphene nanoribbons (GNRs), [25] graphene nanomeshes (GNMs), [26] graphene quantum dots (GQDs), [27] and other complex shaped nanostructures. [28] Theory predicted that GNRs' bandgap (ΔE(W)) varies as a function of the ribbon width W, ΔE(W) = α W −1 , α is a coefficient with unit [nm eV]. [29][30][31][32] Contrary to the fixed bandgap of a semiconductor-silicon, the bandgap of GNs can be precisely tuned by regulating their edge structure, shape, size, and crystallographic orientation. [26,[33][34][35] Currently, extremely small and dense graphene based-nanoelectronic devices have been achieved by top-down approaches, e.g., electron-beam lithography, [36] block copolymer lithography, [37] and nanosphere lithography. [38] However, top-down patterning of graphene to nanometer scale is challenging without compromising its transport properties. As the pattern density increases, the introduced edge disorders will gradually dominate the electronic properties. Bottom-up approaches, on the other hand, provide an opportunity to synthesize graphene with well-defined edges via solution-mediated or surface-assisted cyclodehydrogenation reactions. [39,40] Since CVD-grown graphene films and surface-assisted grown GNs are generally synthesized on metal foils, their further applications require post-transfer to target substrates. [12,[41][42][43] The one-atom-thick graphene has excellent electronic, optical, thermal, and mechanical properties. Currently, chemical vapor deposition (CVD) graphene has received a great deal of attention because it provides access to large-area and uniform films with high-quality. This allows the fabrication of graphene based-electronics, sensors, photonics, and optoelectronics for practical applications. Zero bandgap, however, limits the application of a graphene film as electronic transistor. The most commonly u...

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“…Consequently, the adhesion energy between the metal and the donor substrate was significantly reduced under the action of the graphene AAL, increasing the pickup yield of the embedded metallic electrode almost by 100%, regardless of the different types of metals tested. In addition, there have been some reports regarding green strategies wherein the graphene film can be transferred onto the target substrates without polymeric residues or toxic chemical agents issues. − Adoption of such approaches may further help in achieving high-quality metallic electrodes through the graphene AAL assisted method for the environmentally friendly peel-and-pick transfer process. The influence of the graphene AAL on the metal–substrate interfacial energy modulation was systematically investigated through the qualitative evaluation of the experimental data combined with density functional theory (DFT) calculations.…”

Section: Introductionmentioning

confidence: 99%

Graphene Antiadhesion Layer for the Effective Peel-and-Pick Transfer of Metallic Electrodes toward Flexible Electronics

Jeong

Seo

Kim

et al. 2021

ACS Appl. Mater. Interfaces

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Owing to its exceptional physicochemical properties, graphene has demonstrated unprecedented potential in a wide array of scientific and industrial applications. By exploiting its chemically inert surface endowed with unique barrier functionalities, we herein demonstrate antiadhesive monolayer graphene films for realizing a peel-and-pick transfer process of target materials from the donor substrate. When the graphene antiadhesion layer (AAL) is inserted at the interface between the metal and the arbitrary donor substrate, the interfacial interactions can be effectively weakened by the weak interplanar van der Waals forces of graphene, enabling the effective release of the metallic electrode from the donor substrate. The flexible embedded metallic electrode with graphene AAL exhibited excellent electrical conductivity, mechanical durability, and chemical resistance, as well as excellent performance in flexible heater applications. This study afforded an effective strategy for fabricating high-performance and ultraflexible embedded metallic electrodes for applications in the field of highly functional flexible electronics.

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Oil boundary approach for sublimation enabled camphor mediated graphene transfer

Cited by 14 publications

References 49 publications

Graphene transfer methods: A review

Graphene transfer methods: A review

Recent Progress in the Transfer of Graphene Films and Nanostructures

Graphene Antiadhesion Layer for the Effective Peel-and-Pick Transfer of Metallic Electrodes toward Flexible Electronics

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