EHThCHO-Br, for the synthesis of low band gap non-fullerene acceptors
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5-Bromo-4-(2-ethylhexyl)-2-thiophenecarboxaldehyde (EHThCHO-Br) is the intermediate that is used for the synthesis of low band-gap non-fullerene acceptors (NFAs). Semiconducting materials bearing 5-bromo-4-(2-ethylhexyl)-2-thiophenecarboxaldehyde such as IEIC and IEIC-4F exhibit good thermal stability, strong absorption in the 500–750 nm region with great extinction coefficients.
Ternary non-fullerene polymer solar cell based on PBDB-T:ITCN:IT-M mixture gained a power conversion efficiency of 12.16% with increased short-circuit current density (Jsc) and open-circuit voltage (Voc) comparing PBDB-T:ITM-based device.
|Molecular weight||303.26 g/mol|
|Classification / Family||Thiophene derivatives, Organic semiconducting materials, Semiconductor Synthesis, Low band gap polymers, OFETs, OLED, Organic Photovoltaics, None-fullerene acceptors (NFAs), NFA-OSCs.|
Literature and Reviews
- High-performance fullerene-free polymer solar cells with 6.31% efficiency, Y. Lin etal., Energy Environ. Sci.,8, 610-616 (2015); DOI:10.1039/C4EE03424D.
- Ternary Nonfullerene Polymer Solar Cells with 12.16% Efficiency by Introducing One Acceptor with Cascading Energy Level and Complementary Absorption. W. Jiang et al., Adv Mater., 30(1), (2018); doi: 10.1002/adma.201703005.
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