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Benzotriazole (TAZ): A versatile building block for conjugated polymers based solar cells (Conference Presentation)
Author(s): Wei You
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Paper Abstract

The fluorinated triazole (FTAZ) based conjugated polymers (e.g., PBnDT-FTAZ) have been used widely in organic solar cells, reaching efficiencies over 13% with non-fullerene acceptors. However, fluorination is just one structural variation that the triazole unit can be modified to. In recent year, we have explored a number of other structural variations. In particular, new synthetic strategies allow us to create a diverse set of triazole based conjugated molecular units bearing various electron accepting abilities. The structural differences of as-synthesized three new triazole acceptors have a significant impact on the optoelectronic properties of conjugated polymers incorporating these triazoles. Bulk heterojunction solar cells based on these new polymers, show a wide range of efficiencies (up to 8.6% with PCBM) with active layer thickness around 300 nm.

Paper Details

Date Published: 18 September 2018
Proc. SPIE 10737, Organic, Hybrid, and Perovskite Photovoltaics XIX, 107371B (18 September 2018); doi: 10.1117/12.2320418
Show Author Affiliations
Wei You, The Univ. of North Carolina at Chapel Hill (United States)

Published in SPIE Proceedings Vol. 10737:
Organic, Hybrid, and Perovskite Photovoltaics XIX
Zakya H. Kafafi; Paul A. Lane; Kwanghee Lee, Editor(s)

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