Synthesis and characterization of a fluorinated oligosiloxane-containing encapsulation material for organic field-effect transistors, prepared via a non-hydrolytic sol-gel process

► We synthesized an inorganic-organic hybrid material (TPDt) to encapsulate OFETs. ► TPDt, prepared via a non-hydrolytic sol-gel process, contains fluoroalkyl groups. ► TPDt film showed smooth surface, hydrophobicity, transparency and low gas permeability. ► TPDt with fluorine showed better film properties than without fluorine. ► The field-effect mobility of the OFETs with TPDt decreased only negligibly.