|Molecular weight||1004.68 g/mol|
|Classification / Family||Thiophene, Fused thiophene, Benzo-dithiophene heterocylic aromatics, Five-membered ring, Semiconductor synthesis intermediates, Low band-gap polymers, OFETs, Organic photovoltaics, Polymer solar cells|
|Purity||>99% (by HPLC)|
|Appearance||Light yellow crystals|
2,6-bis(trimethytin)-4,8-bis(5-(2-ethylhexyl)-3-fluorothiophen-2-yl)benzo[1,2-b:4,5-b’]dithiophene (BDTTDfSn) is an electron-rich building block that has been used for the synthesis of small molecules and low band-gap polymer semiconductors (such as PBDB-T-SF) for highly efficient OSCs and OPV applications.
Bearing two ethylhexyl thioalkyl side chains, with fused thiophenes and thiophenes as electron-rich pendants, BDTTDfSn offers good solubility for the targeted compounds. The introduction of the fluoro atoms on the side thiophene rings can also lower the HOMO/LUMO energy levels of the desired polymers.
Literature and Reviews
- Molecular Optimization Enables over 13% Efficiency in Organic Solar Cells, W. Zhao at al., J. Am. Chem. Soc., 139 (21), 7148–7151 (2017); DOI: 10.1021/jacs.7b02677.
- Enhancing Indacenodithiophene Acceptor Crystallinity via Substituent Manipulation Increases Organic Solar Cell Efficiency, T. J. Aldrich et al, Chem. Mater., 29(24), 10294-10298 (2017); DOI: 10.1021/acs.chemmater.7b04616.
- A Large‐Bandgap Conjugated Polymer for Versatile Photovoltaic Applications with High Performance, M. Zhang et al., Adv. Mater., 27, 4655–4660 (2015); DOI: 10.1002/adma.201502110.