Simple Route to Increase Electrical Conductivity and Optical Transmittance in Graphene/Silver Nanoparticles Hybrid Suspensions

Electrical and optical properties of graphene/silver nanoparticles hybrid suspensions intended for use in inkjet printing technologies were studied. Few-layered graphene particles manufactured via a direct ultrasonic-assisted liquid-phase exfoliation route water/surfactant system, whereas silver synthetized using polyol process. Hybrid mixtures showed significant reduction mean particle size while electrical conductivity remained almost intact even after thorough centrifugation. Structuring effects mixed colloids very pronounced as both transmission maxima at 65 wt.% graphene. Suspensions with conductivities above 300 μSm/cm, much higher than previously reported, obtained, resulted the manufacturing films less 10% absorption throughout visible region. These samples did not demonstrate peaks attributed to nanoparticles’ surface plasmon resonance, which is suitable transparent electrode applications. Suspension optimal composition (65 graphene) are promising printed electronics well conductive coating In paper, we establish that suspension matches film; therefore, more attention should be paid carefully studying electrically suspensions.