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18 September 2018 Benzotriazole (TAZ): A versatile building block for conjugated polymers based solar cells (Conference Presentation)
Wei You
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Proceedings Volume 10737, Organic, Hybrid, and Perovskite Photovoltaics XIX; 107371B (2018) https://doi.org/10.1117/12.2320418
Event: SPIE Organic Photonics + Electronics, 2018, San Diego, California, United States
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.
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Citation Download Citation
Wei You "Benzotriazole (TAZ): A versatile building block for conjugated polymers based solar cells (Conference Presentation)", Proc. SPIE 10737, Organic, Hybrid, and Perovskite Photovoltaics XIX, 107371B (18 September 2018); https://doi.org/10.1117/12.2320418
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KEYWORDS
Polymers
Solar cells
Heterojunctions
Optoelectronics
Organic photovoltaics
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