Dr. Letian Dou obtained his B.S. in Chemistry from Peking University in 2009. He then joined Prof. Yang Yang’s group in the Department of Materials Science and Engineering at UCLA, and obtained his Ph.D. in 2014. His doctoral research focused on the design and synthesis of conjugated polymers for organic photovoltaic applications. Currently, he is a Chemist Postdoc Fellow working with Prof. Peidong Yang at the Department of Chemistry, University of California-Berkeley and Lawrence Berkeley National Laboratory. His research interest includes the synthesis of organic semiconductors, inorganic nano structures, hybrid materials, and related optoelectronic properties and devices. He has published 32 papers with more than 7000 citations (H index = 25). He is recipient of the prestigious MRS student awards (2014), Chinese Government Award For Outstanding Students Abroad (2014), and the Link Foundation Energy Fellowship (2013-2015).