ZHOU Ling-jun1, HE Quan-guo2, LIU Zheng-chun2, YANG Chun1, HE Nong-yue2
1. College of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097, China;2. Key Lab for Molecular and Biomolecular Electronics of Ministry of Education, Southeast University, Nanjing 210096, China