Effect of Acid Treatment on Carbon Nanotube-Based Flexible Transparent Conducting Films

Geng, Hong-Zhang; Kim, Ki Kang; So, Kyeong A; Lee, Young Sil; Chang, Youngkyu; Lee, Young Hee

doi:10.1021/ja0722224

Cited by 886 publications

(829 citation statements)

References 13 publications

Supporting

Mentioning

788

Contrasting

Unclassified

Order By: Relevance

“…S8), and are comparable to those of Ni grains. Our results imply that we have more room for improvement in graphene quality by Ni GB engineering, that is, micrometre-scale or larger grain sizes in graphene layers can be obtained by creating macrocrystalline Ni films with GBs located far enough from each other and/or by wet chemical doping 8,29 of the films with high controllability.…”

Section: Diffusion-assisted Synthesis (Das) Methodmentioning

confidence: 75%

Near room-temperature synthesis of transfer-free graphene films

et al. 2012

View full text Add to dashboard Cite

Large-area graphene films are best synthesized via chemical vapour and/or solid deposition methods at elevated temperatures (~1,000 °C) on polycrystalline metal surfaces and later transferred onto other substrates for device applications. Here we report a new method for the synthesis of graphene films directly on sio 2 /si substrates, even plastics and glass at close to room temperature (25-160 °C). In contrast to other approaches, where graphene is deposited on top of a metal substrate, our method invokes diffusion of carbon through a diffusion couple made up of carbon-nickel/substrate to form graphene underneath the nickel film at the nickelsubstrate interface. The resulting graphene layers exhibit tunable structural and optoelectronic properties by nickel grain boundary engineering and show micrometre-sized grains on sio 2 surfaces and nanometre-sized grains on plastic and glass surfaces. The ability to synthesize graphene directly on non-conducting substrates at low temperatures opens up new possibilities for the fabrication of multiple nanoelectronic devices.

show abstract

Section: Diffusion-assisted Synthesis (Das) Methodmentioning

confidence: 75%

Near room-temperature synthesis of transfer-free graphene films

et al. 2012

View full text Add to dashboard Cite

show abstract

“…But all these methods create groups at CNT walls, which can act as recombination. Alternativelly, CNTs are suspended in aqueous media by non-covalent interactions using surfactants [7,20,[63][64][65].…”

Section: Cnt Dispersions and Thin Film Formationmentioning

confidence: 99%

“…By subsequent drying, the SWNT films can be lifted off with a poly dimethylsiloxane (PDMS) stamp and transferred to a flexible poly-ethylene terephthalate (PET) substrate by printing. The printing method produces a relatively smooth, homogeneous film with a transmittance of 85% at 550 nm and a sheet resistance Rs of 200 Ohm/sq after acid treatment [65].…”

Section: Figure 1 A) Schematic Images Of the Cnts With Different Strmentioning

confidence: 99%

Carbon nanotubes for organic/inorganic hybrid solar cells

Arici

Karazhanov

2016

Materials Science in Semiconductor Processing

View full text Add to dashboard Cite

show abstract

“…Many attempts have been made to optimise the room temperature conductance of nanotube networks by the chemical doping and hybridization with a host network of guest components by various methods, including acid treatment [11,12], decoration by metal nanoparticles [3,13], production of conducting polymer composite films [14] and graphene-SWNT networks [15].…”

Section: Introductionmentioning

confidence: 99%

High electrical conductance enhancement in Au-nanoparticle decorated sparse single-wall carbon nanotube networks

McAndrew

Baxendale

2013

Nanotechnology

View full text Add to dashboard Cite

We report high electrical conductivity enhancement in sparse single-walled carbon nanotube networks by decoration with Au nanoparticles. The optimised hybrid network exhibited a sheet resistance of 650 /sq: 1/1500 of the resistance of the host undecorated network, with a negligible optical transmission penalty (>90% transmittance at 550 nm wavelength). The electrical transport at room temperature in host and decorated networks was dominated by 2-dimensional variable range hopping.The high conductance enhancement was due to positive charge transfer from the decorating Au nanoparticles in intimate contact with the host network causing a Fermi energy shift into the high density of states at a van Hove singularity and enhanced electron delocalisation relative to the host network which beneficially modifies the hopping parameters in such a way that the network behaves as an integral whole. The effect is most pronounced when the nanoparticle diameter is comparable to the electron mean free path in the bulk material at room temperature and there is minimum nanoparticle agglomeration. For higher than optimal values of nanoparticles per unit area or nanoparticle diameter, the conductivity enhancement is countered by metallic inclusions in the current pathways that are of higher resistance than the VRH-controlled elements.

show abstract

Effect of Acid Treatment on Carbon Nanotube-Based Flexible Transparent Conducting Films

Cited by 886 publications

References 13 publications

Near room-temperature synthesis of transfer-free graphene films

Near room-temperature synthesis of transfer-free graphene films

Carbon nanotubes for organic/inorganic hybrid solar cells

High electrical conductance enhancement in Au-nanoparticle decorated sparse single-wall carbon nanotube networks

Contact Info

Product

Resources

About