1. College of Printing and Dyeing Chemical Engineering, Henan University of Engineering, Zhengzhou450007, China
2. Sinopec Petroleum Engineering Zhongyuan Corporation, Zhengzhou450046, China
3. College of Materials Engineering, Henan University of Engineering, Zhengzhou450007, China
4. Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng475004, China