1. Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
2. Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
3. SCNU-TUE Joint Lab of Device Integrated Responsive Materials (DIRM), National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510005, China