Ultra-Highly Cross-Aligned AgNWs Network by a Facile Liquid-Bridge Assisted Couette-Flow Solution Process:Toward Mass-Producing High-Performance Flexible Transparent Electrodes  

作　　者：Xiaoxun Li Lili Meng Min Zhang Kejie Zhang Lei Jiang Huan Liu 

机构地区：[1]Research Institute for Frontier Science,Beihang University,Beijing 100191 [2]Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education,School of Chemistry,Beihang University,Beijing 100191 [3]Ji Hua Laboratory,Foshan,Guangdong 528000

出　　处：《CCS Chemistry》2023年第12期2855-2865,共11页中国化学会会刊（英文）

基　　金：financially supported by the National Natural Science Foundation of China for Distinguished Young Scholar(grant no.22125201);the Beijing Natural Science Foundation(grant no.Z210018);the National Natural Science Foundation of China(grant nos.22102004 and 22202081);the National Postdoctoral Program for Innovative Talents(grant no.BX20200026);the Fundamental Research Funds for the Central Universities.

摘　　要：Cross-aligned silver nanowires(CA-AgNWs),a unique networkwidely used in flexible transparent electrodes(FTEs),have been well developed using various solution processes.However,these approaches suffer from limitations of both the large alignment deviation and solution waste,especially in large-area fabrication,which deteriorates the performance of FTEs.Herein,we developed a facile liquid-bridge assisted Couette-flow solution shearing approach,which enables aligning AgNWs into a highly ordered horizontal array over a large area(120 cm^(2)).Particularly,the alignment deviation,evaluated by the statistic,full width at half-maximum,is rather small with a value of ca.12.6,several times lower than those made by other solution processes.The fibrous liquid-bridge is responsible for transferring liquid steadily onto the substrate,during which process AgNWs are aligned roughly by the solution shearing.It is worth noting that the enhanced shearing force(SF)by Couetteflow allows for further alignment.Consequently,the ultra-highly CA-AgNWs network was prepared,leading to a high-performance FTE with high conductivity(7Ωsq^(-1)),high transparency(93%),long lifetime(over 180 days),good adhesion-stability(200 times tape test),and good flexibility.Moreover,the strategy is applicable for mass-production,benefiting the practical applications of high-performance optoelectronic devices.

关 键 词：flexible transparent electrode AgNWs cross-aligned COUETTE-FLOW solution shearing 

分 类 号：TB3[一般工业技术—材料科学与工程]