發(fā)布時(shí)間：2018-03-09 00:07

  本文選題：透明導(dǎo)電　切入點(diǎn)：銀納米線(xiàn)　出處：《北京交通大學(xué)》2014年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：摘要：透明導(dǎo)電材料一直被ITO所主導(dǎo),但是隨著銦資源短缺、柔性觸控的快速發(fā)展以及更加廉價(jià)工藝的需求,許多替代型材料被人們研究出來(lái)。銀納米線(xiàn)材料是最近幾年熱門(mén)的研究方向,但多數(shù)限于實(shí)驗(yàn)室的應(yīng)用研究,對(duì)于大量工業(yè)生產(chǎn)的應(yīng)用條件還存在較大的空白,本文以量產(chǎn)工藝為條件對(duì)銀納米線(xiàn)觸控電極的制備展開(kāi)研究,其中透明導(dǎo)電電極作為ITO替代電極,非透明低電阻電極作為新一代嵌入式觸控電極。 首先,以銀納米線(xiàn)分散液為材料制備了方塊電阻為15Ω/□,透過(guò)率為93%的透明導(dǎo)電薄膜,優(yōu)化溶膠-凝膠制備條件可得到透過(guò)率為95%的透明導(dǎo)電薄膜。對(duì)制備的薄膜進(jìn)行了圖形化刻蝕研究,通過(guò)優(yōu)化曝光能量、顯影時(shí)間、刻蝕液和刻蝕條件刻蝕出形貌良好單邊偏差為0.95um的觸控電極。為了改善觸控電極的硬度、粘附性和抗氧化能力,對(duì)電極旋涂OC保護(hù)層,對(duì)比其性能,OC保護(hù)層可以提高以上各項(xiàng)性能。 其次,使用銀納米線(xiàn)材料制備了方塊電阻為0.65Ω/□的低方塊電阻薄膜,對(duì)比只用溶膠-凝膠方法和溶膠-凝膠與刮涂方式相結(jié)合的工藝,證明了通過(guò)溶膠-凝膠與刮涂方式相結(jié)合的工藝可以得到更加均勻的薄膜,并對(duì)其做了SEM與FIB表征。參考透明導(dǎo)電電極的曝光條件,優(yōu)化了制備低電阻電極時(shí)的刻蝕條件,單邊偏差接近O。其粘附性良好,對(duì)其高溫穩(wěn)定性能進(jìn)行研究,發(fā)現(xiàn)在空氣中溫度超過(guò)250攝氏度氧化迅速,隔絕空氣時(shí)溫度達(dá)到300攝氏度銀納米線(xiàn)發(fā)生熔化斷裂。 最后,為了解決工藝中觸控電極斷線(xiàn)的問(wèn)題,通過(guò)控制銀納米線(xiàn)分散液拉膜方式,制備了陣列取向的銀納米線(xiàn)薄膜,以取向方向制備的電極,其電阻明顯降低且斷線(xiàn)的幾率大大降低。
[Abstract]:Abstract: transparent conductive material has been dominated by ITO, but with the rapid development of indium resources, flexible touch and more cheap technology needs, many alternative materials were developed. The silver nanowire material in recent years is a hot research direction, but most limited to applied research laboratory, there are still large gaps the application conditions of a large number of industrial production, the production process conditions on silver nanowire touch electrode preparation of the transparent conductive electrode as a substitution of ITO electrode, non transparent low resistance electrode as a new generation of embedded touch electrode.
First of all, the silver nanowires dispersion was used as material to prepare the sheet resistance is 15 ohms per square transmittance of transparent conductive film 93%, optimize the sol gel preparation conditions can be obtained through the rate of transparent conductive film 95%. The prepared films were graphical etching, exposure energy, through the the optimal developing time, etching solution and etching conditions of etched morphology good unilateral deviation is touch electrode 0.95um. In order to improve the hardness of the touch electrode, and the antioxidant capacity of electrode adhesion, spin coating OC protective layer, comparing its performance, OC protective layer can be improved by the performance.
Secondly, the use of silver nanowires fabricated sheet resistance for low sheet resistance of 0.65 ohm / - the only technology between the sol-gel method and sol gel coating and the ways of combining the proof process by combining sol-gel and scraping way can get more uniform film, and do the SEM and FIB respectively. The exposure condition reference transparent conductive electrode, the etching conditions for preparing low resistance electrode during the optimization, unilateral deviation close to O. with good adhesive to study its high temperature stability, it is found that the temperature in the air more than 250 degrees Celsius rapidly oxidized, the temperature reached 300 degrees Celsius silver nanowires melt fracture and cut off the air.
Finally, in order to solve the problem of disconnection of touch electrodes in the process, silver coated Nanowire Films with aligned arrays were prepared by controlling the silver nanowire dispersive liquid film pulling mode. The electrode prepared in the direction of orientation decreased significantly, and the probability of disconnection was greatly reduced.

【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TQ150.6

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