Electrochromic,\nSurface-Anchored Metal–Organic\nFrameworks for Stabilized Silver Nanowire Flexible Transparent Electrodes

Despite excellent optical and electrical properties,\nthe brittleness\nof indium tin oxide (ITO), used as a transparent electrode, prevents\nthe realization of stable flexible devices. If silver nanowire (AgNW)\nnetworks represent a promising alternative, their lack of thermal\nand electrochemical stability still prevents their fast development\nin numerous applications. Herein, we report a novel strategy consisting\nof the deposition of an electrochromic and protective layer of oriented\nhybrid materials, also known as surface-anchored metal–organic\nframeworks (SurMOFs). Furthermore, the dual role played by the SurMOF\nis achieved using a room-temperature and low-cost method for the efficient\nuse of bare AgNWs. A step forward was achieved by demonstrating electrochemical\nand mechanical stability for flexible electrochromic SurMOF@AgNW/PET\nthin films, switching reversibly from orange (+0.2 V) to blue (−0.8\nV) in 8.4 s and 10.4 s, respectively, with a color efficiency of 158\ncm<sup>2</sup>/C after being bent 300 times.