Large-area graphene on polymer film for flexible and transparent anode in field emission device

Abstract

We present the fabrication and electrical characterization of large graphene structure on polyethylene terephthalate (PET) flexible substrate. Graphene film was grown on Cu foil by thermal chemical vapor deposition and transferred to PET by using hot press lamination. The graphene/PET film shows high quality, flexible transparent conductive structure with unique electrical-mechanical properties; ∼88.80% light transmittance and ∼1.1742 kΩ/sq sheet resistance. We demonstrate application of graphene/PET film as flexible and transparent electrode for field emission displays. Our proposed techniques can be tailored for any flexible substrate and large scale production, which could open up exciting device applications in foldable electronics.

Doped graphene nanohole arrays for flexible transparent conductors

“…The width between two electrodes is about 3.2 lm. The measured range of 1450-2150 X/h for a layer graphene is consistent with that reported by Li et al 11 and Verma et al, 12 but considerably higher than that measured by Bae et al, 9 even though a similar processing condition was adopted in this experiment. One possible explanation is differences in the size of grains and grain boundaries in graphene.…”

“…3,9 Even when using the same process such as CVD, 10 R s of graphene varies quite dramatically. 11,12 One approach for improving R s is to stack multiple layers of graphene. However, adding multiple layers of graphene decreases optical transmission and increases the complexity of transparent conductor fabrication.…”

High-performance rectifiers fabricated on a flexible substrate

“…7,8 The fabrication process and materials are environmentally friendly, and they are also compatible with large-area roll-to-roll manufacturing. There is a lot of interest in this (flexible plastic substrates) technology [9][10][11][12][13] due to the distinct advantages it presents over the rigid substrates in many applications. Unlike the rigid substrates, the flexible plastic substrate is usually more robust and compact, has lighter weight, and is more cost effective.…”

Enhanced 3-Dimensional Carbon Nanotube Based Anodes for Li-ion Battery Applications

“…Graphene film was synthesized by a CVD method [101]. A commercially available Cu foil of 50 to 200 µm thickness (Nimrod Hall Copper, 99.9% purity) was first annealed at 1,000 °C for 1 hour under an Ar gas atmosphere.…”