Embedded ultra-high stability flexible transparent conductive films based on exfoliated graphene-silver nanowires-colorless polyimide

Transparent conductive films with high stability were prepared by embedding silver nanowires in colorless polyimide and adding a protective layer of exfoliated graphene. The films exhibit great light transmission and conductivity with a sheet resistance of 22 omega sq(-1) at transmittance of 83%. Due to its special embedded structure, the conductive layer can withstand several peeling experiments without falling off. In addition, the most outstanding advantage is the ultra-high stability of the films, including high mechanical robustness, strong chemical corrosion resistance and high operating voltage capacity. The organic light-emitting diode devices prepared based on this transparent conductive electrode exhibit comparable efficiency to indium tin oxide (ITO) based devices, with C.E. (max) = 2.78 cd A(-1), P ( -1 ) .E. (max) = 1.89 lm W-1, EQE (max) = 0.89%. Moreover, the efficiencies were even higher than that of ITO devices when the operating voltage of the device exceeds 5 V. The above performances show that the transparent conductive electrode based on this structure has high potential for application in organic electronic devices.

Automated summary

Transparent conductive films with high stability were developed by incorporating silver nanowires into colorless polyimide and adding a protective layer of exfoliated graphene. The resulting films demonstrated excellent light transmission, conductivity, and resistance to peeling, showcasing potential for use in organic electronic devices. Organic light-emitting diode devices utilizing this transparent conductive electrode exhibited comparable efficiency to indium tin oxide (ITO) based devices, with even higher efficiency at operating voltages exceeding 5 V.