1. Synthesis of large area graphene sheets using chemical vapour deposition for electronic applications
Supervisor: Dr Jamie Warner
The 2D crystalline nature of graphene makes it suitable for large area transparent conducting electrodes and in nanoelectronics. The biggest challenge in synthetic graphene is achieving large single crystals of graphene and uniformity in the layer number on the centimeter scale. We have recently shown how chemical vapour deposition (CVD) can be used to grow centimeter scale continuous films of pure monolayer graphene with graphene crystal grain sizes approaching the millimeter scale. This project will extend this body of work to focus on understanding the growth mechanisms behind CVD grown graphene and then developing approaches to improve the atomic structure and electronic properties. Techniques to transfer the sheets to transparent substrates, such as glass or flexible polymers will be examined and the sheet resistance determined. Nanoelectronic devices such as field effect transistors and Hall bar structures will be fabricated using lithography in order to evaluate the electronic properties of the synthetic graphene. Methods to incorporate dopants into the CVD growth process will be pursued with the aim of improving conductivity. Controlling the number of graphene layers grown by CVD will be investigated. The material produced in this project will underpin a wide range of applications based on graphene and has the potential for significant impact.
LWP Price at posting:
0.4¢ Sentiment: Buy Disclosure: Held
