1. Department of Chemistry and Centre for Processable Electronics Imperial College London London SW7 2AZ UK
2. Department of Chemical Engineering National Chung Hsing University Taichung 40227 Taiwan
3. Department of Chemical Engineering National Taiwan University Taipei 10617 Taiwan
4. School of Engineering and Materials Science Queen Mary University of London London E1 4NS UK
5. Department of Hydrogen & Renewable Energy Kyungpook National University Daegu 41566 Korea
6. Department of Chemistry University of Oxford Oxford OX1 4BH UK
7. SPECIFIC IKC College of Engineering Swansea University Swansea SA2 7AX UK