A thermally activated delayed fluorescence material for efficient ternary organic solar cells

Yingying Yuan; Geng Feng; Qinxue Li; Junhe Zheng; Jian Zhong

doi:10.1117/12.2508129

8 February 2019 A thermally activated delayed fluorescence material for efficient ternary organic solar cells

Yingying Yuan, Geng Feng, Qinxue Li, Junhe Zheng, Jian Zhong

Proceedings Volume 10843, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing and Imaging; 108431O (2019) https://doi.org/10.1117/12.2508129
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

In this study, we report the ternary organic solar cells by doping a thermally activated delayed fluorescence (TADF) material (4 s ,6 s )-2,4,5,6-tetra( 9H -carbazol-9-yl) isophthalonitrile (4CzIPN) in the binary poly(3-hexylthiophene) (P3HT) :[6,6]-phenyl-C71-butyric acid methyl ester (PC₇₁BM) blends. Given the complementary absorption with P3HT, 4CzIPN was doped into (P3HT:PC₇₁BM)-based binary blends, and ternary OSCs were developed, The ternary OSCs with 1.0 wt% of 4CzIPN displayed better phase separation of active layer, thus leading to an impressive efficiency of 3.94 % with open-circuit voltage of 0.54 V, short-circuit density of 11.58 mA/cm^-2and fill factor of 63.32%.

Citation Download Citation

Yingying Yuan, Geng Feng, Qinxue Li, Junhe Zheng, and Jian Zhong "A thermally activated delayed fluorescence material for efficient ternary organic solar cells", Proc. SPIE 10843, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing and Imaging, 108431O (8 February 2019); https://doi.org/10.1117/12.2508129

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