1. Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
2. Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho City, Viet Nam
3. Department of Chemistry, University of Houston, Houston, Texas 77204, United States
4. Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
5. Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan