The deviation of growth model for transparent conductive graphene
نویسندگان
چکیده
An approximate growth model was employed to predict the time required to grow a graphene film by chemical vapor deposition (CVD). Monolayer graphene films were synthesized on Cu foil at various hydrogen flow rates from 10 to 50 sccm. The sheet resistance of the graphene film was 310Ω/□ and the optical transmittance was 97.7%. The Raman intensity ratio of the G-peak to the 2D peak of the graphene film was as high as ~4 when the hydrogen flow rate was 30 sccm. The fitting curve obtained by the deviation equation of growth model closely matches the data. We believe that under the same conditions and with the same setup, the presented growth model can help manufacturers and academics to predict graphene growth time more accurately.
منابع مشابه
Control of thickness uniformity and grain size in graphene films for transparent conductive electrodes.
Large-scale and transferable graphene films grown on metal substrates by chemical vapor deposition (CVD) still hold great promise for future nanotechnology. To realize the promise, one of the key issues is to further improve the quality of graphene, e.g., uniform thickness, large grain size, and low defects. Here we grow graphene films on Cu foils by CVD at ambient pressure, and study the grap...
متن کاملHighly conductive, flexible and scalable graphene hybrid thin films with controlled domain size as transparent electrodes.
Highly conductive, transparent, flexible and scalable graphene hybrid thin films with controlled domain size were successfully fabricated via a mechanochemical method, screen printing and pressure-assisted reduction process.
متن کاملThe role of graphene formed on silver nanowire transparent conductive electrode in ultra-violet light emitting diodes
This paper reports a highly reliable transparent conductive electrode (TCE) that integrates silver nanowires (AgNWs) and high-quality graphene as a protecting layer. Graphene with minimized defects and large graphene domains has been successfully obtained through a facile two-step growth approach. Ultraviolet light emitting diodes (UV-LEDs) were fabricated with AgNWs or hybrid electrodes where ...
متن کاملFast and Non-Catalytic Growth of Transparent & Conductive Graphene-Like Carbon Films on Glass at Low Temperature
This article presents the synthesis and systematic study on graphene-like carbon thin films directly grown on commercial glass by using remote-ECR Plasma Assisted CVD. The fabrication process is extremely rapid and performed on to 2 inch scale dielectric substrate at relatively low temperature (< 550oC) without using metal catalyst. This method avoids damaging and expensive transfer processes o...
متن کاملTransparent and conductive thin films of graphene/polyaniline nanocomposites prepared through interfacial polymerization.
This communication reports a simple, one-pot procedure for the synthesis and processing of transparent and conductive thin films of graphene/polyaniline nanocomposites based on an interfacial polymerization. Thin films presenting transmittance of 89% and sheet resistance of 60.6 Ω sq(-1) are spontaneously obtained and can be easily transferred to suitable substrates.
متن کامل