1. Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603Kuala Lumpur, Malaysia
2. Centre of Advanced Materials, Faculty of Engineering, University of Malaya, 50603Kuala Lumpur, Malaysia
3. Graphene & Advanced 2D Materials Research Group (GAMRG), School of Science and Technology, Sunway University, No. 5, Jalan University, Bandar Sunway, 47500Subang Jaya, Selangor, Malaysia
4. School of Engineering and Mathematical Sciences, La Trobe University, 3552Bendigo, Victoria, Australia
5. Sustainable Energy Materials Lab, School of Chemistry and Physics, Faculty of Science, Queensland University of Technology, 4000Brisbane, Queensland, Australia