1 Research Center for Organic Electronics (ROEL), Graduate School of Science and Engineering, Yamagata University,Yonezawa, Yamagata, 992-8510, Japan. tomohito@yz.yamagata-u.ac.jp.
2 Research Center for Organic Electronics (ROEL), Graduate School of Science and Engineering, Yamagata University,Yonezawa, Yamagata, 992-8510, Japan.
3 Arkema-Piezotech, 63493, Pierre-Benite Cedex, France.
4 Arkema K. K., 93, Chudoji, Awatacho, Shimogyo, Kyoto, 600-8815, Japan.
5 Research Center for Organic Electronics (ROEL), Graduate School of Science and Engineering, Yamagata University,Yonezawa, Yamagata, 992-8510, Japan. tokito@yz.yamagata-u.ac.jp.