1. Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing401331, China
2. College of Physical and Electrical Engineering, Chongqing Normal University, Chongqing401331, P. R. China
3. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing401331, China