1. School Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin; Dublin 2 Ireland
2. School of Electrical and Electronic Engineering, Newcastle University; Newcastle upon Tyne United Kingdom
3. Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology, Universität der Bundeswehr; München Germany