Yiwei Zhang was born in Changli, a small town in Hebei Province, China. He got his BSc from Nanjing University in 2010 majoring in Physics. Then he studied in Chinese Academy of Sciences for his MSc, which was got in 2013. During his MSc program, he involved in the research of organic thin film transistors and he also has great interest in organic photovoltaic devices. So after graduating from CAS, he came to EPMM as a PhD candidate under the supervision of Prof. D. Lidzey to explore the physics problem in organic photovoltaic materials and devices.