High-temperature resistance of flexible transparent conductive films based on Ag@SnO2 core-shell nanowires for 300 oC

High-temperature resistance of flexible transparent conductive film (FTCF), consisting of an Ag@SnO2 core shell nanowire (Ag NW@SnO2) network embedded in a colorless polyimide (cPI), is fabricated by allsolution-process. The Ag NW@SnO2 are synthesized via a redox reaction in the presence of water. The energy-dispersive X-ray spectroscopy mapping results demonstrate that a SnO2 thin-shell is coated uniformly on the surface of Ag NW. The obtained FTCF shows low sheet resistance of 9.3 O/sq. with similar to 85.3% of optical transmittance. Imbedding the Ag NW@SnO2 network into cPI film enhances the thermostability and improves the mechanical flexibility of the FTCF. Particularly, the FTCFs can withstand a high temperature of 300 C-o in air without deterioration of conductivity. The robust high-temperature FTCFs in this study hold promising commercial application in flexible and high temperature occasions.