BTR has a backbone consisting of a benzodithiophene (BDT) unit in conjugation with two terthiophenes and two rhodanine periphera end groups forming a coplanar structure. In combination with the additional hexyl group on the thienyl-BDT unit, the side chains provide BTR with strong intermolecular interactions showing nematic liquid crystal behaviour.
BTR shows an excellent solubility of 211 mg/ml in chloroform,.
|Full name||5,5'- [[4,8-bis[5-(2-ethylhexyl)-4-hexyl-2-thienyl]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl]bis[(3',3''-dihexyl[2,2':5',2''-terthiophene]-5'',5-diyl)methylidyne ]]bis[3-hexyl-2-thioxo-4-thiazolidinone]|
|Purity||98% (1H NMR)|
|Molecular weight||2031.41 g/mol|
|HOMO / LUMO||HOMO = -5.34 eV LUMO = -3.52 eV |
|Melting point (DSC)||TGA: 405 °C (0.5% weight loss), 175°C (Tg)|
|Solubility/processing solvents||Chloroform, chlorobenzene|
|Classification / Family||Benzodithiophene (BDT) derivatives, Heterocyclic five-membered ring, Organic semiconducting materials, Organic Photovoltaics, Small molecule donor, SM-OPVs|
|M2255A1||5 - 10 g*||Please enquire|
Literature and Reviews
- A molecular nematic liquid crystalline materialfor high-performance organic photovoltaics, K. Sun et al., Nat. Commun., 6:6013 (2014); DOI: 10.1038/ncomms7013.
- Liquid crystal material as the third component for ternary polymer solar cells with efficiency of 10.83% and enhanced stability, X. Ma et al., J. Mater. Chem. A, 5, 13145-13153 (2017); DOI: 10.1039/C7TA03472E.
- Nematic liquid crystal materials as a morphology regulator for ternary small molecule solar cells with power conversion efficiency exceeding 10%, M. Zhang et al., J. Mater. Chem. A, 5, 3589–3598 (2017); DOI: 10.1039/c7ta00211d.
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