1. Materials Chemistry Section,
Department of Chemistry, University College Cork, College Road, Cork, Ireland
2. Centre for Adaptive Nanostructures
and Nanodevices (CRANN), Trinity College Dublin, College Green, Dublin 2, Ireland
3. Tyndall National Institute, Lee Maltings, Prospect Row, Cork, Ireland
4. Intel Ireland Limited, Collinstown Industrial Estate, Leixlip, Co. Kildare, Ireland