a
Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Tenjin-cho 1-5-1, Kiryu, Japan
E-mail: mhanaya@gunma-u.ac.jp
;
Fax: +81-277-30-1360
;
Tel: +81-277-30-1360
b
Human Resource Cultivation Center (HRCC), Gunma University, Tenjin-cho 1-5-1, Kiryu, Japan
c
International Education and Research Center for Silicon Science (Silicon Center), Graduate School of Engineering, Gunma University, Tenjin-cho 1-5-1, Kiryu, Japan