Elucidating the effects of the sidechain substitution direction on the optoelectronic properties of isomeric diketopyrrolopyrrole-based conjugated polymers for near-infrared organic phototransistors
Tao Shen, Wu Zeng, Zhen Jiang, Dongsheng Yan, Yan Zhao, Yang Wang, Yunqi Liu
Abstract
Compared to P3BT-out, P3BT-in with sidechains in the inner way has better molecular planarity, narrower bandgap, and stronger light absorption ability, resulting in an increased electron mobility and higher near-infrared photoresponsivity.
Topics & Concepts
Planarity testingConjugated systemMaterials scienceInfraredPolymerBand gapAbsorption (acoustics)PhotochemistrySubstitution (logic)OptoelectronicsElectron mobilityCrystallographyOpticsChemistryPhysicsProgramming languageComposite materialComputer scienceOrganic Electronics and PhotovoltaicsConducting polymers and applicationsPerovskite Materials and Applications