Organic Electronics ( IF 2.7 ) Pub Date : 2018-05-21 , DOI: 10.1016/j.orgel.2018.05.028
Lu Lian , Xin Xi , Dan Dong , Gufeng He
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A highly smooth, conductive and air-stable flexible transparent silver nanowire (AgNW) composite film is developed by solution process without high temperature treatment. The sheet resistance of the AgNW/polyvinyl butyral (PVB) film decreases significantly after the film is immersed into the silver-ammonia and glucose mixed solution for only a few seconds. The solution selectively wets the AgNWs rather than the PVB substrate, because the AgNWs is hydrophilic while the PVB is hydrophobic. The silver-ammonia on the surface of the AgNWs is reduced into silver, which solders the nanowire assembles together. This selective welding of the AgNWs greatly increases the electrical conductivity of the composite film without obviously attenuating its transmittance. Specifically, the sheet resistance of this AgNW composite film is 10.1 Ω/sq with a transmittance of 87% at the wavelength of 550 nm, and it also shows excellent stability. The film can be easily patterned and employing this composite film as an anode, the organic light emitting diode exhibits comparable performance to the ITO device. This simple and effective solution process method shows strong potential to be applied in industrial mass production.
中文翻译:
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有机发光二极管选择性焊接的高导电性银纳米线透明电极
通过固溶工艺无需高温处理即可开发出高度光滑,导电且空气稳定的柔性透明银纳米线(AgNW)复合膜。将AgNW /聚乙烯醇缩丁醛(PVB)膜浸入银氨和葡萄糖混合溶液仅几秒钟后,其薄膜电阻会显着降低。该溶液选择性地润湿AgNW,而不是PVB基材,因为AgNW是亲水的,而PVB是疏水的。AgNWs表面的银氨被还原成银,从而将纳米线组装在一起。AgNWs的这种选择性焊接大大提高了复合膜的电导率,而不会明显降低其透射率。具体而言,该AgNW复合膜的薄层电阻为10。1Ω/ sq在550 nm的波长下具有87%的透射率,并且还显示出出色的稳定性。该膜可以容易地构图,并且将该复合膜用作阳极,有机发光二极管表现出与ITO器件相当的性能。这种简单有效的溶液处理方法显示出在工业大规模生产中应用的强大潜力。