Yong Chan Choi obtained his B.S. in 2007 and Ph.D in 2011 at Chonbuk National University (Republic of Korea). He is currently a postdoctoral fellow of Division of Advanced Materials at Korea Research Institute of Chemical Technology (KRICT) in Republic of Korea. He is working on the development of antimony chalcogenides sensitizer-architecture solar cells, under the supervision of Dr. Seok in KRICT.