1. Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
2. Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
3. Center for Condensed Matter Science, National Taiwan University, Taipei 10617, Taiwan
4. Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
5. Center of Atomic Initiative for New Materials, National Taiwan University, Taipei 10617, Taiwan