General Information

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CAS Number	N/A
Chemical Formula	[(C68H76F2O2S8)0.8(C41H44F2O2S5)0.2]n
Full Name	Poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-fluoro)thiophen-2-yl)-benzo[1,2-b:4,5-b’]dithiophene))-alt-(5,5-(1’,3’-di-2-thienyl)-5’,7’-bis(2-ethylhexyl)benzo[1’,2’-c:4’,5’-c’]dithiophene-4,8-dione)]-ran-poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)-benzo[1,2-b:4,5-b’]dithiophene))-alt-(2,2-ethyl-3(or4)-carboxylate-thiophene)]
HOMO / LUMO	HOMO = -5.48 eV, LUMO = -3.63 eV [1]
Solubility	o-Xylene, chloroform, chlorobenzene and dichlorobenzene
Processing Solvent	o-Xylene, chloroform, chlorobenzene and dichlorobenzene
Synonyms	T1
Classification / Family	Organic semiconducting materials, Medium band-gap polymers, Organic Photovoltaics, Polymer solar cells, NF-PSCs, All-polymer solar cells (all-pscs).

Chemical Structure

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Chemical structure of PBDB-TF-T1 (T1) and its solubility in o-xylene

Characterisations

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UV-Vis Absorption

UV-Vis absorption of of PBDB-TF-T1 in chloroform (CF) and in film (as-cast film on glass) and its solubility in THF at 8 mg/ml.

Cyclic Voltammetry

Cyclic voltammograms of the PBDB-TF-T1 film on platinum electrode in 0.1M Bu4NClO4in acetonitrile at a scan rate of 100 mV s−1.

The cyclic voltammograms (CV) measurements were recorded on Ossila Potentiostat by using a three-electrode system with platinum disc as the working electrode, platinum wire as the counter electrode, Ag/Ag+ electrode as the reference electrode with a scanning rate of 100 mV/s in a 0.1 M tetrabutylammonium perchlorate (Bu4NClO4) solution. The potential of Ag/Ag+ reference electrode was internally calibrated by using ferrocene/ferroncenium (Fc/Fc+) as the redox couple.