Multilayer Graphene Synthesized by CVD Using Liquid Hexane as the Carbon Precursor

TL;DR

This paper reports the synthesis of multilayer graphene via CVD at atmospheric pressure using liquid hexane as the carbon source, and introduces an optical method to estimate the number of layers.

Contribution

It demonstrates a novel CVD process for multilayer graphene using liquid hexane and develops an optical transmittance technique for layer estimation.

Findings

Multilayer graphene with approximately 11 layers was synthesized.

Liquid hexane effectively served as a carbon precursor in CVD.

An optical transmittance device was successfully used to estimate layer number.

Abstract

We produce multilayer graphene by the Chemical Vapor Deposition (CVD) method at atmospheric pressure and 1000 {\deg}C, using flexible copper substrates as catalyst and liquid hexane as the source of carbon. We designed an optical device to measure the transmittance of the carbon films; with this information we calculate that the approximate number of layers is 11.