1. Key Laboratory of Novel Thin Film Solar Cells; Institute of Plasma Physics, Chinese Academy of Sciences; Hefei P.R. China
2. University of Science and Technology of China; Hefei P.R. China
3. Faculty of Science; King Abdulaziz University; Jeddah Saudi Arabia
4. Department of Mathematics; Quaid-I-Azam University; Islamabad Pakistan
5. Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions; Soochow University; Suzhou P.R. China