1. a Department of Materials Science and Technology , Hirosaki University , Hirosaki , 036-8561 , Japan
2. b Central R&D Laboratory , Japan Energy Corporation , 3-17-35 Niizominami, Toda, Saitama , 335-8502 , Japan
3. c Dainippon Ink & Chemicals, INC , Komuro, Ina-machi, Kitaadachi-gun, Saitama , 362-8577 , Japan
4. d Department of Organic and Polymeric Materials , Tokyo Institute of Technology , Meguro-ku, O-okayama, Tokyo , 152-8552 , Japan
5. e Department of Materials Chemistry , Graduate School of Engineering Kyoto University , Yoshida, Kyoto , 606-8501 , Japan