Search results for "Electrochemical doping"

showing 2 items of 2 documents

Infrared study of the MoO3 doping efficiency in 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP)

2013

AbstractElectrochemical doping produces clear changes in the vibrational spectra of organic semiconductors as we show here for the system molybdenum oxide (MoO3) doped into the charge transport material 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP). Based on density-functional theory (DFT) calculations of vibrational spectra, the new spectral features can be attributed to the CBP cation that forms as a result of electron transfer from CBP to MoO3. The intensity of the new vibrational lines is a direct measure for the probability of charge transfer. MoO3 agglomerating within the CBP matrix limits the active interface area between the two species. The appearance of a broad electronic transition …

Charge dissociationChemistry(all)Electrochemical dopingInfraredChemistryAgglomerationDopingAnalytical chemistryInfrared spectroscopyDoping efficiencyGeneral ChemistryElectronic structureCondensed Matter PhysicsMolecular electronic transitionElectronic Optical and Magnetic MaterialsBiomaterialsOrganic semiconductorElectron transferCharge transferMaterials ChemistryElectrical and Electronic EngineeringInfrared spectroscopyExcitationOrganic Electronics
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New n-dopable thiophene based polymers

1999

Abstract New conjugated polymers containing variable amounts of thienyl and thienyl-S,S-dioxide units have been prepared by chemical or electrochemical polymerization of the appropriate substrates. The presence of the thienyl S,S-dioxide units leads to the decrease of the LUMO energies with respect to those of the ‘all thienyl’ counterparts. Electrochemical and spectro electrochemical data of n-doping of these materials are reported.

chemistry.chemical_classificationMaterials scienceElectrochemical polymerizationMechanical EngineeringMetals and AlloysPolymerConjugated systemCondensed Matter PhysicsPhotochemistryElectrochemistryElectronic Optical and Magnetic MaterialsElectrochemical dopingchemistry.chemical_compoundchemistryMechanics of MaterialsMaterials ChemistryThiopheneHOMO/LUMOSynthetic Metals
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