材料科学
导电体
丝网印刷
纳米技术
光电子学
电导率
柔性电子器件
退火(玻璃)
导电聚合物
薄板电阻
墨水池
复合材料
图层(电子)
聚合物
物理化学
化学
作者
Dongdong Li,Wen‐Yong Lai,Feng Fang,Wei Huang
标识
DOI:10.1002/admi.202100548
摘要
Abstract Screen printing is an important technique for creating 2D conductive patterns with high conductivity and resolution. Non‐conductive additives are thus required in printable ink formulation in order to achieve appropriate viscosity and rheological behaviors. However, it is still a challenge to recover the conductivity of the printed networks after screen printing, while keeping the integrity of the patterns during repeated water‐washing. Herein, a series of post‐treatments are introduced into the washing process in order to achieve high‐quality silver nanowire (Ag NW) transparent conductive films. Screen‐printed patterns can be well maintained because of the enhanced adhesion between the Ag NW networks and flexible poly(ethylene terephthalate) substrates. High‐performance transparent conductive film with extremely low sheet resistance (0.72 Ω sq −1 ) is achieved by combining plasma treatment, thermal annealing, and high pressure, making screen‐printed Ag NW conductive networks promising to be used in the next‐generation flexible optoelectronic devices.
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