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RESEARCH PRODUCT
A Very Low Band Gap Diketopyrrolopyrrole-Porphyrin Conjugated Polymer
Claude P. GrosDaniel FortinGanesh D. SharmaPierre D. HarveyLéo BucherLéo BucherNicolas DesboisLoïc Tanguysubject
Materials scienceBand gapbuilding-blockporphyrinoidsElectron donorthin-film transistors02 engineering and technologyConjugated system010402 general chemistryPhotochemistry[ CHIM ] Chemical Sciences01 natural sciencesPolymer solar cellheterojunction solar-cellschemistry.chemical_compound[CHIM]Chemical Sciencessmall-moleculepolymerschemistry.chemical_classificationsemiconducting polymerscharge transferGeneral ChemistryPolymerChromophoreElectron acceptorside-chains021001 nanoscience & nanotechnologyPorphyrinphotovoltaic properties0104 chemical sciencesphotodynamic therapychemistryorganic photovoltaics0210 nano-technologyabsorptionperformanceconjugationdescription
International audience; A porphyrin-diketopyrrolopyrrole-containing polymer (poly(porphyrin-diketopyrrolopyrrole) (PPDPP)) shows impressive molar absorption coefficients from lambda=300 to 1000 nm. The photophysical and structural properties of PPDPP have been studied. With PPDPP as the electron donor and [ 6,6]phenyl C-71 butyric acid methyl ester (PC71BM) as the electron acceptor, the bulk heterojunction polymer solar cell showed overall power conversion efficiencies of 4.18 and 6.44% for as-cast and two-step annealing processed PPDPP: PC71BM (1: 2) active layers, respectively. These results are quite impressive for porphyrin-containing polymers, especially when directly included in the pi-conjugated backbone, and offer interesting perspectives for the design of new materials based on this chromophore.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-04-20 | ChemPlusChem |