As transparent electrodes,patterned silver nanowire(AgNW)networks suffer from noticeable pattern visibility,which is an unsettled issue for practical applications such as display.Here,we introduce a Gibbs-Thomson effe...As transparent electrodes,patterned silver nanowire(AgNW)networks suffer from noticeable pattern visibility,which is an unsettled issue for practical applications such as display.Here,we introduce a Gibbs-Thomson effect(GTE)-based patterning method to effectively reduce pattern visibility.Unlike conventional top-down and bottom-up strategies that rely on selective etching,removal,or deposition of AgNWs,our approach focuses on fragmenting nanowires primarily at the junctions through the GTE.This is realized by modifying AgNWs with a compound of diphenyliodonium nitrate and silver nitrate,which aggregates into nanoparticles at the junctions of AgNWs.These nanoparticles can boost the fragmentation of nanowires at the junctions under an ultralow temperature(75℃),allow pattern transfer through a photolithographic masking operation,and enhance plasmonic welding during UV exposure.The resultant patterned electrodes have trivial differences in transmittance(ΔT=1.4%)and haze(ΔH=0.3%)between conductive and insulative regions,with high-resolution patterning size down to 10μm.To demonstrate the practicality of this novel method,we constructed a highly transparent,optoelectrical interactive tactile e-skin using the patterned AgNW electrodes.展开更多
基金supported by the Basic and Applied Basic Research Foundation of Guangdong Province(2024A1515030155,2022A1515010272,2024A1515012609,2023A1515011459)National Natural Science Foundation of China(61904067,62475101,62175094,62275109)+2 种基金open funding from the State Key Laboratory of Optoelectronic Materials and Technologies(Sun Yat-Sen University,OEMT-2022-KF-08)National Innovation and Entrepreneurship Training Program For Undergraduate(202410559004)Fundamental Research Funds for the Central Universities(11621405).
文摘As transparent electrodes,patterned silver nanowire(AgNW)networks suffer from noticeable pattern visibility,which is an unsettled issue for practical applications such as display.Here,we introduce a Gibbs-Thomson effect(GTE)-based patterning method to effectively reduce pattern visibility.Unlike conventional top-down and bottom-up strategies that rely on selective etching,removal,or deposition of AgNWs,our approach focuses on fragmenting nanowires primarily at the junctions through the GTE.This is realized by modifying AgNWs with a compound of diphenyliodonium nitrate and silver nitrate,which aggregates into nanoparticles at the junctions of AgNWs.These nanoparticles can boost the fragmentation of nanowires at the junctions under an ultralow temperature(75℃),allow pattern transfer through a photolithographic masking operation,and enhance plasmonic welding during UV exposure.The resultant patterned electrodes have trivial differences in transmittance(ΔT=1.4%)and haze(ΔH=0.3%)between conductive and insulative regions,with high-resolution patterning size down to 10μm.To demonstrate the practicality of this novel method,we constructed a highly transparent,optoelectrical interactive tactile e-skin using the patterned AgNW electrodes.
