General Information

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Full name	Poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-chloro)thiophen-2-yl)-benzo[1,2-b:4,5-b’]dithiophene))-alt-(2,2-ethyl-3(or4)-carboxylate-thiophene)]
Synonyms	PTO2-Cl
Chemical formula	(C41H44Cl2O2S5)n
CAS number	n.a.
HOMO / LUMO	HOMO = -5.66 eV, LUMO = -3.41 eV (measured please see charaterisations)
Solubility	THF, o-xylene, chloroform, chlorobenzene and dichlorobenzene
Processing solvent	THF, o-xylene, chloroform, chlorobenzene
Classification / Family	Organic semiconducting materials, Wide band-gap polymers, Organic Photovoltaics, Polymer solar cells, NF-PSCs, All-polymer solar cells (all-pscs), Clean energy materials.

Chemical Structure

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Chemical structure of PClTO2 and its solubility in THF and o-xylene.

Characterisations

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UV-Vis Absorption

UV-Vis absorption of of PClTO2 in chlorobenzene (CB) and in film (as-cast film on glass).

Cyclic Voltammetry

Cyclic voltammograms of the PClTO2 film on platinum electrode in 0.1M Bu4NClO4 in 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 perchloroate Bu4NClO4) solution. The potential of Ag/Ag+ reference electrode was internally calibrated by using ferrocene/ferroncenium (Fc/Fc+) as the redox couple.