6533b85bfe1ef96bd12ba951

RESEARCH PRODUCT

Effects of Carbon-sp3 Bridging on the Electronic Properties of Oligothiophenes

Maria J. SanchisRafael ViruelaEnrique OrtíPedro M. Viruela

subject

Bridging (networking)Materials scienceBand gapMechanical EngineeringMetals and AlloysElectronic structureElectronCondensed Matter PhysicsPhotochemistryElectronic Optical and Magnetic MaterialsMechanics of MaterialsComputational chemistryChemical-mechanical planarizationMaterials ChemistryDensity functional theoryElectronic properties

description

Abstract The electronic properties of rigidified, carbon sp 3 -bridged bithiophenes and terthiophenes have been investigated using density functional theory calculations, sp 3 Bridging has no effect on the bandgap other than that associated to the planarization of the system. Rigidification significantly improves the ability of oligothiophenes as electron donors but diminishes their electron accepting capacity. Grafting of substituents at the sp 3 bridging carbon slightly modifies the electronic properties.

https://doi.org/10.1016/s0379-6779(98)01201-6