Professor Jon Heffernan
Tel: +44 (0)114 22 25165
Research Centre: National Epitaxy Facility
I graduated with a PhD in Physics from Trinity College Dublin in 1994 with a thesis on optical switching for optical computing applications. From 1994 to 1996 I was a post-doctoral researcher working on the first blue-green laser diodes in collaboration with Sony Corporation. From 1996 to 2013 I was employed in the European research laboratories of Sharp Corporation in Oxford, eventually as Director of Advanced Optoelectronic Devices for the company. In this seventeen years in industrial research I was involved in the development of three generations of optical storage technology: CD, DVD and Blu-ray. I also led research and development on LED lighting and display technologies using blue LEDs and novel quantum dot phosphors, and on record-holding Silicon and GaAs-based solar cells. Much of this work was transferred into mass production and commercialised globally.
In 2013 I joined the University of Sheffield as Professor of Semiconductor Materials and Devices and concurrently Director of the EPSRC National Epitaxy Facility (http://www.nationalepitaxyfacility.co.uk)