1. Department
of Chemistry, Faculty of Science, Sultan Qaboos University, P.O. Box 36, 123 Muscat, Sultanate of Oman
2. Centre of Printable Electronics, Deputy Vice Chancellor Office (Research & Innovation), University of Malaya, 50603 Kuala Lumpur, Malaysia
3. Department of Electronic & Electrical Engineering, University of Bath, Bath BA2 7AY, United Kingdom
4. Research Institute & Department of Chemistry, Faculty of Engineering and Technology, SRM University Kattankulathur, Chennai 603 203, Tamil Nadu, India