[1] State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun,130012, China
[2] College of Physics, Jilin University, 2699 Qianjin Street, Changchun,130012, China
[3] Longjiapu Mining Co., Ltd., Longjiapu Town, Jiutai District, Changchun,130504, China
[4] Changchun East Coal High-tech Co., Ltd., 8722 Weixing Road, Changchun,130012, China
[5] Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston,TX,77005, United States