Coordination-Bonded Ag NWs Micromesh-Based Transparent Electrodes for Electro- and Thermo- Dual Responsive Chromatic Devices.

Abstract

Metal nanowire-based transparent electrodes have emerged as promising alternatives to conventional indium tin oxide (ITO) due to their excellent electrical conductivity and mechanical flexibility. However, weak adhesion between metal nanowires and conventional substrates results in poor mechanical stability. Moreover, random silver nanowire (Ag NW) nanostructures in conventional electrodes leads to high junction resistance and light scattering, reducing conductivity and transparency. Herein, we develop highly stable and flexible transparent electrodes by embedding micromesh-structured Ag NWs in hydroxyl-rich cellulose. Benefiting from strong coordination bonding between the Ag NWs and hydroxyethyl cellulose (HEC) and the embedded micromesh structure, the electrode displays superior photoelectric performance (5 Ω/sq at 83.5% transmittance) and robust mechanical stability (bending, twisting, folding, and peeling off). Furthermore, we assembled an electro- and thermo- dual responsive chromatic device, enabling rapid heat generation and multicolor switching. We believe that our work provides an innovative approach to fabricating high-performance electrodes for optoelectronic devices.