1. Research Institute for Ubiquitous
Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577,
Japan
2. Department of Chemistry,
Graduate
School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
3. Department of Materials Engineering
Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
4. Department of Advanced Material
Science, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Chiba 277-8561, Japan