Category

Renewable energy

(Natural) polymersApplicationCharacteristic dimensionCharacterizationCrystalline fractionCustomer publicationsGIWAXSMaterialRenewable energyTechniqueThin films

The effect of side-chain substitution on the aggregation and photovoltaic performance of diketopyrrolopyrrole-alt-dicarboxylic ester bithiophene polymers

Heuvel, Ruurd; Colberts, Fallon J. M.; Li, Junyu; Wienk, Martijn M.; Janssen, René A. J.

Using a dicarboxylic ester bithiophene (DCBT) co-monomer, electron-withdrawing ester groups are introduced on the two central thiophene rings of an alternating donor–acceptor polymer (PDPP4T) consisting of diketopyrrolopyrrole (DPP) and quaterthiophene (4T) to increase the oxidation potential and reduce the photon energy loss in solar cells. To counteract the increased solubility…
12 March 2019