Multi layer silver nanowire/polyethylene terephthalate mesh structure for highly efficient transparent electromagnetic interference shielding.
Electromagnetic interference protection in optoelectronic devices is challenging because of the dual requirements of optical transmittance and high shielding effectiveness. Herein, we propose a novel silver nanowire (AgNW)/polyethylene terephthalate (PET) multi layer mesh pattern structure for transparent electromagnetic shielding obtained via laser marking and transfer printing. A three layer composite shielding film with an optical transmittance of 67.8% exhibits a shielding effectiveness of 44 dB at 10 GHz, which is superior to most of the reported transparent shielding films composed of AgNWs to date. The newly designed multi layer composite structure can enhance the transparent shielding properties of the shielding film via optimization of the AgNW distribution and the shielding film structure. It is expected that this multi layer mesh composite structure will have splendid application prospects in electromagnetic shielding films, which require both light transmittance and high shielding effectiveness.
Nanotechnology