Octahexyltetrabenzotriazaporphyrin: A Discotic Liquid Crystalline Donor for High-performance Small-molecule Solar Cells

Phase-transition, optical, and photoconductive properties of a discotic liquid crystalline donor, nonperipherally substituted octahexyltetrabenzotriazaporphyrin (C6TBTAPH2), was characterized for high-performance solution-processed bulk heterojunction (BHJ) organic solar cells (OSCs). C6TBTAPH2 exhi...

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Published in:Chemistry letters 2014-11, Vol.43 (11), p.1761-1763
Main Authors: Dao, Quang-Duy, Watanabe, Koichi, Itani, Hiromichi, Sosa-Vargas, Lydia, Fujii, Akihiko, Shimizu, Yo, Ozaki, Masanori
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container_issue 11
container_start_page 1761
container_title Chemistry letters
container_volume 43
creator Dao, Quang-Duy
Watanabe, Koichi
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description Phase-transition, optical, and photoconductive properties of a discotic liquid crystalline donor, nonperipherally substituted octahexyltetrabenzotriazaporphyrin (C6TBTAPH2), was characterized for high-performance solution-processed bulk heterojunction (BHJ) organic solar cells (OSCs). C6TBTAPH2 exhibited high hole and electron mobilities at room temperature, exceeding 0.18 cm2 V−1 s−1, and strong absorption at both B-band and Q-band. A high power conversion efficiency of 4.9% under AM 1.5G irradiation (100 mW cm−2) was achieved for BHJ OSCs utilizing phase-separated nanomaterials comprising C6TBTAPH2 and 1-(3-methoxycarbonyl)propyl-1-phenyl-(6,6)C71.
doi_str_mv 10.1246/cl.140685
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title Octahexyltetrabenzotriazaporphyrin: A Discotic Liquid Crystalline Donor for High-performance Small-molecule Solar Cells
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