標題: Enhancing efficiency for additive-free blade-coated small-molecule solar cells by thermal annealing
作者: Tsai, Pei-Ting
Meng, Hsin-Fei
Chen, Yongsheng
Kan, Bin
Horng, Sheng-Fu
物理研究所
Institute of Physics
關鍵字: Additive-free;Small-molecule;Thermal annealing;Organic solar cells;Blade coating
公開日期: 1-Oct-2016
摘要: Blade coating was successfully applied to realise high-efficiency small-molecule organic solar cells (OSCs) with a solution-processed active layer comprising a small organic molecule DR3TBDTT with a benzo[1,2 -b: 4,5-b'] dithiophene (BDT) unit as the central building block as the donor and [6,6] -phenyl-C71 -butyric acid methyl ester (PC71BM) as the acceptor. Using chloroform as the solvent, a DR3TBDTT/PC71BM blend active layer without an additive was effectively formed through blade coating. The power conversion efficiency (PCE) of small organic molecule solar cells was enhanced by 3.7 times through thermal annealing at 100 degrees C. This method produces OSCs with a high PCE of up to 6.69%, with an open circuit voltage (V-oc) of 0.97 V, a short-circuit current density (J(sc)) of 12.60 mA/cm(2), and a fill factor (FF) of 0.55. (C) 2016 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.orgel.2016.06.029
http://hdl.handle.net/11536/147834
ISSN: 1566-1199
DOI: 10.1016/j.orgel.2016.06.029
期刊: ORGANIC ELECTRONICS
Volume: 37
起始頁: 305
結束頁: 311
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