Zhu, Zonglong A PCBM Electron Transport Layer Containing Small Amounts of Dual Polymer Additives that Enables Enhanced Perovskite Solar Cell Performance. [electronic resource] - Advanced science (Weinheim, Baden-Wurttemberg, Germany) Sep 2016 - 1500353 p. digital Publication Type: Journal Article ISSN: 2198-3844 Standard No.: 10.1002/advs.201500353 doi