Research On Flexible Silver Nanowires-metal Oxide Composite Electrode

Transparent conductive electrode?TCE?is one of the important components of opto-electronics.The most commonly material used as electrode is indium tin oxide?ITO?.It has been used in TCE materials for flat panel display,solar cell,thin-film resistor,sensor and functional glass field.However,with the demand for wearable devices,electronic products are further going toward the flexible,foldable,and arbitrarily curved forms,it requires higher performance of transparent conductive electrodes,making the brittle transparent conductive electrode materials--ITO difficult to be used in the next generation of flexible electronic products.In recent years,many researchers have focus their work on flexible transparent conductive electrode materials,which can be potential token the place of ITO.The silver nanowires?AgNWs?are considered to be a substitute for ITO because of its excellent flexibility,conductivity and transparency.However,the high contact resistance and the surface roughness of the AgNWs film make it difficult in practical applications.In this thesis,the ultra-smooth surface and high conductivity AgNWs-Aluminum doped Zinc oxide?AZO?composite electrode has been prepared by the method of“peel off and transfer”-peel off the electrode from a rigid substrate to a flexible substrate and atomic layer deposition technology.The surface mean square root roughness of composite film is only 0.31nm,the sheet resistance is as low as 8.66+0.33?/sq,and the transmission rate reached 83.55%@550nm,what's more,it was flexible.An Alq₃ organic light-emitting device based on this composite electrode was fabricated and characterized,the results show a great potential of the AgNW-AZO composite electrode in flexible electronic devices.