基金V. ACKNOWLEDGEMENTS This work was supported by the Scientific Research Program Funded by Shaanxi Provincial Education Department (No.2013JK0690), and the Shaanxi Province Natural Science Foundation (No.2013JM2013), the National Natural Science Foundation of China (No.21203160), and the Special Research Fund of Xianyang Normal University (No. 11XSYK204).
基金Supported by National Natural Science Foundation of China (Grant No.50072013)the Natural Science Foundation of Shandong Province,China (No. Z2003F04)
基金National Natural Science Foundation of China(51572076,51508172,51378183)Science and Technology Bureau of Xiangyang,and the Foundation of Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices(14XKL1002)