1. Low Dimensional Materials Research Centre (LDMRC), Department of Physics, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
2. eProfiler Solutions Malaysia Sdn Bhd, Suite 3.5, Level 3, UM Innovation Incubator Complex, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
3. Centre For Ionics Universiti Malaya (CIUM), Department of Physics, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
4. Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
5. Department of Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India