Dr. Chang-Qi Ma received his PhD degree at the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences in 2003. After that he was a postdoctoral research assistant at Heriot-Watt University in Edinburgh, UK, until he joined the research group of Professor Peter Bäuerle at the University of Ulm in 2004 as a Humboldt research fellow. From January 2007 till May 2011, he did his Habilitation in Institute of Organic Chemistry II and Advanced Materials, Ulm University. Since June 2011 he joined Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, as a professor of chemistry. His research group mainly works on solution-processed flexible thin film solar cells, including polymer and perovskite solar cells. He has published over 150 papers and filed over 30 patents.