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Research Fellows Directory

Jamie Warner

Professor Jamie Warner

Research Fellow


University of Oxford

Research summary

Electronics and computers are now integral to our everyday life, with mobile phones, ipods, memory sticks, cameras and laptops in routine use. Computing power that once occupied an entire floor of a building now fits into the palm of your hand. This was made possible by the miniaturization of electronic components. Building electronic components, such as transistors and interconnects, that are smaller and with new modes of operation is essential to the further advancement of technology. This proposal examines next-generation electronics that utilize carbon as the active electronic nanomaterial. Nanomaterial made from carbon, in particular graphene, are promising candidates to lead the next technological revolution in the electronics industry. Graphene is a 2D crystal one atom thick consisting of carbon atoms arranged in a hexagonal lattice with honeycomb pattern. Its large 2D sheet is ideal for cutting out sophisticated patterns of electrical circuits, including transistors in a top-down approach. I will develop the technology to grow large area graphene sheets using chemical vapour deposition and fabricate nanostructures with sub-10 nm features using a focussed electron beam. The electron beam will act as a knife and cut out tracks and patterns in the graphene sheet with atomic resolution. The graphene nanostructures will be made into electronic devices with improved performance. What makes this work extra-special is that I will use a state-of-the-art electron microscope which can magnify samples up to 2.6 million times and image the carbon atoms in graphene. By knowing how the atoms are arranged and I can understand how this affects the device performance and then fine tune the structure to improve the performance.

Grants awarded

Large Scale Layered Semiconducting 2D Crystal Heterostructures

Scheme: University Research Fellowship

Dates: Oct 2015 - Sep 2018

Value: £319,181.99

Engineering carbon nanomaterials using controlled electron beam irradiation

Scheme: University Research Fellowship

Dates: Oct 2010 - Sep 2015

Value: £548,049.87