1. Lee Kong Chian Faculty of Engineering & Science, Universiti Tunku Abdul Rahman, Kuala Lumpur, Malaysia
2. Faculty of Science, Universiti Tunku Abdul Rahman, Kampar, Malaysia
3. Liquid Crystal Research Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, Minden, Malaysia
4. Department of Materials Science & Engineering, National Chiao Tung University, Hsinchu, Taiwan, ROC