Dr. Yunfeng Deng received his doctor degree in January 2015 at Changchun Institute of Applied Chemistry (CIAC) under Prof. Yanhou Geng, Chinese Academy of Sciences (CAS). And then work at University of Waterloo (Canada) in the group of Prof. Yuning Li as post-doc during 2015-2016. Dr. Yunfeng Deng works in the field of organic semiconductor synthesis and organic devices fabrication during Ph. D. period. Currently, he serves as a postdoctoral fellow in the group of Prof. Hossam Haick. His research focuses on the development of self-healing transistor for volatile organic compounds (VOCs) detection and discrimination.