The Natural Science Foundation of China(Nos.61435009;61177087;61377099);National Program on Key Basic Research Project(973 Program)(No.2012CB722703);International Science&Technology Cooperation Program of China(No.2011DFA12040);Scientific Research Fund of Zhejiang Provincial Education Department(No.R1101263);Natural Science Foundation of Ningbo(No.2013A610118);Teaching and Research Award Program for Outstanding Young Teachers in Higher Education Institutions of MOE,P.R.C.Ningbo Optoelectronic Materials and Devices Creative Team(No.2009B21007);Scientific Research Foundation of Graduate School of Ningbo University,K.C.Wong Magna Fund of Ningbo University and the Outstanding(No.Postgraduate);Dissertation Growth Foundation of Ningbo University(No.PY2014014)