147. Wansun Kim†, Joonhyeong Choi†, Jae-Han Kim, Taesu Kim, Changyeon Lee, Seungjin Lee, Mingoo Kim, Bumjoon J. Kim*, and Taek-Soo Kim*, "Comparative Study of the Mechanical Properties of All-Polymer and Fullerene-Polymer Solar Cells: The Importance of Polymer Acceptors for High Fracture Resistance", Accepted in Chemistry of Materials(2018)(2016 IF=9.466)