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Highly efficient and stable organic solar cell modules processed by blade coating with 5.6% module efficiency and active area of 216 cm 2

2018; Wiley; Volume: 27; Issue: 3 Linguagem: Inglês

10.1002/pip.3078

1099-159X

Kuan‐Min Huang, Ying Qian Wong, Man‐Chun Lin, Chao‐Hsuan Chen, Chung‐Hung Liao, J F Chen, Yuan‐Han Huang, Yu‐Fan Chang, Pei‐Ting Tsai, Szu‐Han Chen, Ching‐Ting Liao, Yu‐Cih Lee, Ling Hong, Chih‐Yu Chang, Hsin‐Fei Meng, Ziyi Ge, Hsiao‐Wen Zan, Sheng‐Fu Horng, Yu‐Chiang Chao, Wong Hin Yong,

Perovskite Materials and Applications

Abstract In this study, an efficient and stable large‐area blade‐coated organic solar cell (OSC) module with an active area of 216 cm 2 (16 elementary cells connected in series) is demonstrated by combining appropriate thermal annealing treatment with the use of 4,4′‐(((methyl(4‐sulphonatobutyl)ammonio)bis(propane‐3,1‐diyl))bis(dimethyl‐ammoniumdiyl))bis‐(butane‐1‐sulfonate) (MSAPBS) as the cathode interfacial layer. For the opaque device using poly[4,8‐bis(5‐(2‐ethylhexyl)thiophen‐2‐yl)benzo[1,2‐b;4,5‐b′]dithiophene‐2,6‐diyl‐alt‐(4‐(2‐ethylhexyl)‐3‐fluorothieno[3,4‐b]thiophene‐)‐2‐carboxylate‐2‐6‐diyl)] (PBDTTT‐EFT (PTB7‐Th)):[6,6]‐phenyl C 71 ‐butyric acid methyl ester (PC 71 BM) blend film as the active layer, the power conversion efficiency (PCE) of 5.6% is achieved under AM 1.5G solar light illumination. Very encouragingly, our strategy can be applicable for semitransparent OSCs, and a remarkable PCE up to 4.5% is observed. To the best of our knowledge, the PCE of 5.6% for opaque device and 4.5% for semitransparent device represent the highest PCE ever reported for OSCs with the active area exceeding 100 cm 2 . The devices also show an impressive stability under outdoor environment, where the efficiency decay is less than 30% for 60 days. Our findings can pave the way toward the development of organic solar cell modules with high performance and long‐term stability.