Methoxylation of quinoidal bithiophene as a single regioisomer building block for narrow-bandgap conjugated polymers and high-performance organic field-effect transistors
Yunlong Sun, Yunpeng Zhang, Yang Ran, Longxian Shi, Qingsong Zhang, Jinyang Chen, Qingyuan Li, Yunlong Guo, Yunqi Liu
Abstract
Methoxyl group was introduced to obtain isomer-free methoxylation quinoidal bithiophene building block. Four polymers displayed narrow bandgap (<1.20 eV) and hole mobility of up to 2.70 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup>.
Topics & Concepts
Conjugated systemBand gapMaterials scienceBlock (permutation group theory)PolymerTransistorStructural isomerOptoelectronicsCrystallographyPolymer chemistryStereochemistryChemistryElectrical engineeringMathematicsGeometryVoltageComposite materialEngineeringOrganic Electronics and PhotovoltaicsPerovskite Materials and ApplicationsConducting polymers and applications