Morphology control effects of ternary blended C60 towards high performance thick film organic solar cells

Xiaohua Zhang; Dongxu Wu; Zijun Wang; Junsheng Yu

doi:10.1117/12.2506447

8 February 2019 Morphology control effects of ternary blended C₆₀ towards high performance thick film organic solar cells

Xiaohua Zhang, Dongxu Wu, Zijun Wang, Junsheng Yu

Author Affiliations +

Proceedings Volume 10843, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing and Imaging; 1084316 (2019) https://doi.org/10.1117/12.2506447
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

We have fabricated poly[(5,6-difluoro-2,1,3-benzothiadiazol-4,7-diyl)-alt-(3,3000-di(2-octyldodecyl)- 2,20;50,200;500,2000-quaterthiophen-5,5000-diyl)] PffBT4T-2OD/fullerene (C₆₀)/[6,6]-phenyl C₇₁-butyric acid methyl ester (PC₇₁BM) ternary blend films. The thin films have been characterized by atomic force microscope (AFM) and ultraviolet/visible spectroscopy in order to study the influence of C₆₀ doping on the morphological and optical properties of the active layer. The results show the incorporation of C₆₀ into PffBT4T-2OD : PC₇₁BM thin film improves the photovoltaic characteristics and shows preferable morphology. Furthermore, we demonstrate the addition of C₆₀ can suppress bimolecular recombination and thus enhanced FF. This work illustrates a valuable strategy towards thick film OSCs with high-performances.

Citation Download Citation

Xiaohua Zhang, Dongxu Wu, Zijun Wang, and Junsheng Yu "Morphology control effects of ternary blended C₆₀ towards high performance thick film organic solar cells", Proc. SPIE 10843, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing and Imaging, 1084316 (8 February 2019); https://doi.org/10.1117/12.2506447

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