1. State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Advanced Gas Sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
2. College of Chemistry, Jilin University, Changchun 130012, P. R. China
3. School of Electronic and Information Engineering, Changchun University of Science and Technology, Changchun 130022, China
4. International Center of Future Science, Jilin University, Changchun 130012, China