Inside Cover: High‐Performance Organic Solar Cells Based on a Non‐Fullerene Acceptor with a Spiro Core (Chem. Asian J. 7/2017). Issue 7 (23rd March 2017) - Sun, Hua
Abstract : Up the junction : A non‐fullerene acceptor, SCPDT‐PDI4, composed of perylenediimide (PDI) and a spiro core of 4, 4'‐spirobi[cyclopenta[2, 1‐b;3, 4‐b']dithiophene] (SCPDT), has been developed. SCPDT‐PDI4 exhibits a unique 3D structure and isotropic charge transport properties. Organic solar cells based on SCPDT‐PDI4 and a donor polymer of poly[4, 8‐bis(5‐(2‐ethylhexyl)thiophen‐2‐yl)benzo[1, 2‐b;4, 5‐b']di‐thiophene‐2, 6‐diyl‐alt‐(4‐(2‐ethylhexyl)‐3‐fluorothieno[3, 4‐b]thiophene‐)‐2‐carboxylate‐2–6‐diyl)] PTB7‐Th achieved a remarkable quantum efficiency of 7.11%, indicating SCPDT‐PDI4 is a very promising non‐fullerene acceptor for organic solar cells. More information can be found in the Communication by Fei Chen, Zongxiang Xu, Zhi‐Kuan Chen, Wei Huang et al. onpage 721 in Issue 7, 2017 (DOI: 10.1002/asia.201601741).