Direct Low Temperature Nano-Graphene Synthesis over a Dielectric Insulator

TL;DR

This paper presents a simple chemical vapor deposition method for directly synthesizing nano-graphene on dielectric insulators at low temperatures, avoiding high-temperature processes and transfer steps.

Contribution

It introduces a novel low-temperature CVD process for direct graphene growth on dielectric insulators, simplifying fabrication for electronic applications.

Findings

Nano-graphene and few-layer graphene can be synthesized directly on MgO.

The process operates at temperatures as low as 325°C.

The method eliminates the need for transfer from metal substrates.

Abstract

Graphene ranks highly as a possible material for future high-speed and flexible electronics. Current fabrication routes, which rely on metal substrates, require post synthesis transfer of the graphene onto a Si wafer or in the case of epitaxial growth on SiC, temperatures above 1000 {\deg}C are required. Both the handling difficulty and high temperatures are not best suited to present day silicon technology. We report a facile chemical vapor deposition approach in which nano-graphene and few layer graphene is directly formed over magnesium oxide and can be achieved at temperatures as low as 325 {\deg}C.