1. Department of Organic Materials Science; Graduate School of Organic Materials Science; Yamagata University; 4-3-16 Jonan Yonezawa Yamagata 992-8510 Japan
2. Frontier Center for Organic Materials (FROM); Yamagata University; 4-3-16 Jonan Yonezawa Yamagata 992-8510 Japan
3. Research Center for Organic Electronics (ROEL); Yamagata University; 4-3-16 Jonan; Yonezawa Yamagata 992-8510 Japan