作者: Ganesh D. Sharma , S. A. Siddiqui , Agapi Nikiforou , Galateia E. Zervaki , Irene Georgakaki
DOI: 10.1039/C5TC01076D
关键词: Energy conversion efficiency 、 Solar cell 、 Photochemistry 、 Acceptor 、 Short circuit 、 Materials science 、 Organic solar cell 、 Open-circuit voltage 、 Organic chemistry 、 BODIPY 、 Polymer solar cell
摘要: In the present article bulk heterojunction (BHJ) solution processed organic solar cells have been prepared using a mono(carboxy)porphyrin-triazine-(bodipy)2 triad (PorCOOH)(BDP)2 as donor and ([6,6]-phenyl C71 butyric acid methyl ester) (PC71BM) an acceptor. This donor–acceptor system aims to increase light capturing process efficiency of device. The BHJ cell with optimized weight ratio 1 : 1 (PorCOOH)(BDP)2 : PC71BM THF solvent showed overall power conversion (PCE) 3.48% short circuit current Jsc = 8.04 mA cm−2, open voltage Voc 0.94 V fill factor FF 0.46. relatively high value was attributed deeper highest occupied molecular orbital energy level (PorCOOH)(BDP)2. When active layer mixture 4% v/v pyridine in solvent, it achieved PCE 5.29% 10.48 0.90 0.56. ascribed enhancement both values. higher is explained by increased absorption profile blend, stronger incident photon (IPCE) response crystallinity layer, induced additive while may be due better charge transport capability collection later