First‐Generation Subporphyrinatoboron(III) Sensitizers Surpass the 10 % Power Conversion Efficiency Threshold |
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| Authors: | Dr Graeme Copley Daesub Hwang Prof Dr Dongho Kim Prof Dr Atsuhiro Osuka |
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| Institution: | 1. Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, Japan;2. Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, Korea |
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| Abstract: | Subporphyrinatoboron(III) (SubB) sensitizers were synthesized for use in dye‐sensitized solar cells (DSSCs). The prototype, which comprises a sterically demanding 3,5‐di‐tert‐butylphenyl scaffold, a meso‐ethynylphenyl spacer, and a cyanoacrylic acid anchoring group, achieved an open‐circuit voltage VOC of 836 mV, short‐circuit current density JSC of 15.3 mA cm?2, fill factor of 0.786, and a photon‐to‐current conversion efficiency of 10.1 %. Such astonishing figures suggest that a bright future lies ahead for SubB in the realm of DSSCs. |
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| Keywords: | boron dyes/pigments macrocycles sensitizers solar cells |
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