Coupled Ag nanocrystal-based transparent mesh electrodes for transparent and flexible electro-magnetic interference shielding films

摘要

In this study, we developed a fabrication method of conductive and transparent Ag mesh electrodes on flexible polymer film at temperatures lower than 100 degrees C. Random patterned Ag mesh film was fabricated on a flexible PET substrate over 15 x 15 cm(2) by a self-assembly process. It became conducive by a coupling process at low temperatures. The coupled Ag mesh film showed more than 88% transmittance in visible wavelength and less than 8.2 Q sq -1 in sheet resistance with figure of merit (FoM) value of 350. This transparent flexible EMI shield film fabricated with a coupled Ag mesh pattern showed high EM shielding effectiveness of - 23 dB at 1.5-10 GHz frequency with a high transparency of 88%.