LI Yong-fu,ZHANG Ya-guang,LIU Jun-liang,WANG Qing-pu.Influence of annealing temperature of ZnO film as the electron transport layer on the performance of polymer solar cells[J].Optoelectronics Letters,2015,11(4):260-263 Influence of annealing temperature of ZnO film as the electron transport layer on the performance of polymer solar cells Author Name Affiliation LI Yong-fu  Advanced Research Center for Optics, Shandong University, Jinan 250100, China  ZHANG Ya-guang  Advanced Research Center for Optics, Shandong University, Jinan 250100, China Institute of Crystal Materials, Shandong University, Jinan 250100, China  LIU Jun-liang  Advanced Research Center for Optics, Shandong University, Jinan 250100, China Institute of Crystal Materials, Shandong University, Jinan 250100, China  WANG Qing-pu  Advanced Research Center for Optics, Shandong University, Jinan 250100, China  Abstract:       The surface morphology of ZnO films at different annealing temperatures and the performance of polymer solar cells (PSCs) with ZnO as the electron transport layer are studied. The low temperature sol-gel processed ZnO film has smoother surface than that in higher temperature, which results in the best photovoltaic performance with a power conversion efficiency (PCE) of 3.66% for P3HT:PC61BM based solar cell. With increasing annealing temperature, the photovoltaic performance first deceases and then increases. It could be ascribed to the synergy effects of interface area, the conductivity and surface energy of ZnO film and series resistance of devices. Hits: 3923 Download times: 0 This work has been supported by the Independent Innovation Foundation of Shandong University (No.2014YQ015). View Full Text    Download reader