CuS nanotrough-networks for highly stable transparent conducting electrodes

Abstract

Here, we present a newly designed, highly flexible transparent conductive electrode based on a copper sulfide nanotrough network (CuS NN) film. This electrode achieves the sheet resistance of ∼20 Ω sq⁻¹ with a transmittance of up to 80%, which is produced by a process involving electrospinning, metal deposition and low temperature solvothermal reaction. The novel CuS NN film shows excellent chemical stability, exposed to various conditions of thermal oxidation at 160 °C, humid air with 80% relative humidity at 85 °C, and H₂O₂ solution, respectively. During the bending test, the CuS NN electrode exhibited remarkable mechanical stability. We have finished the four wire resistive touch-screen devices based on the CuS NN electrode, which illustrate a promising alternative to traditional TCE materials for wearable electronic devices.