1. Applied Physics, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE 1410, Brunei Darussalam
2. Department of Chemistry, Faculty of Science, University of Lagos, Akoka, Yaba, Lagos 101017, Nigeria
3. Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE 1410, Brunei Darussalam
4. Optoelectronic Device Research Group, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE 1410, Brunei Darussalam