發(fā)布時(shí)間：2018-07-31 18:21

【摘要】：納米銀線(Ag NWs)因其擁有獨(dú)特的性能而被廣泛的應(yīng)用于光電子學(xué)器件、化工生產(chǎn)催化劑、生物納米傳感器、微納機(jī)器人以及太陽能電池板等諸多領(lǐng)域。在透明導(dǎo)電薄膜(TCFs)的應(yīng)用方面,納米銀線具有重要的研究意義。本文就Ag基TCFs的制備采用了兩種不同的工藝方法。其一,首先合成AgNWs,再采用分層刮涂及熱壓的方法將納米銀線固定在基底(玻璃或PET)表層,形成Ag基TCFs。其二,首先采用靜電紡絲技術(shù)將含供Ag生長的晶種紡到基材(玻璃或PET)表面,然后經(jīng)過化學(xué)選擇性生長的方法,在紡絲線表面長出納米銀,形成Ag基TCFs。眾多研究者通過大量的研究發(fā)現(xiàn),高長徑比的AgNWs對(duì)提高透明導(dǎo)電薄膜的光電性能有著重要的意義。本文采用乙二醇還原法合成納米銀線,在以Ag NO3為主體劑提供Ag+,以乙二醇(EG)當(dāng)作反應(yīng)當(dāng)中的溶劑以及還原劑,PVP作為為誘導(dǎo)劑,FeCl3·6H2O作為控制劑,在溫度為120℃,Ar氣氛圍下成功合成了長度為50μm,直徑為60 nm的形貌均勻的納米銀線(AgNW)。之后,采用分層刮涂的辦法,在以溫度為100℃,壓力為50 kg,時(shí)間為30 min的熱壓作用下,成功的制備出了平均表面電阻38Ω/sq,平均可見光透過率為86%的Ag基TCFs。采用靜電紡絲技術(shù)制備Ag基TCFs。創(chuàng)造性提出并研究在紡絲液中使用聚丙烯腈-聚苯乙烯的共聚物(SAN)以絡(luò)合Ag+形成供Ag生長的晶種,再通過Ag的選擇性生長反應(yīng)形成Ag基TCFs。探究紡絲液中SAN的含量,以及收集靜電紡絲時(shí)間對(duì)Ag基TCFs的光電性能的影響作用。經(jīng)探究最優(yōu)化條件,成功制備出表面電阻為20Ω/sq,可見光透過率為85.5%的Ag基透明導(dǎo)電薄膜。光打印法制備Ag基電路圖形是基于傳統(tǒng)技術(shù)以及現(xiàn)階段噴墨打印技術(shù)的缺點(diǎn)而創(chuàng)造性提出的,其實(shí)現(xiàn)是基于分層涂布法制備Ag基透明導(dǎo)電薄膜以及紫外激光對(duì)光敏樹脂的選擇性固化作用的相結(jié)合。在現(xiàn)有條件下制備了最小線寬為0.25 mm,電阻率為21×10-5Ω·cm的導(dǎo)電圖形。為日后制備出大規(guī)模集成電路提供了一種快速、方便、可行的方法。
[Abstract]:Nanocrystalline silver wire (Ag NWs) has been widely used in many fields such as optoelectronic devices, chemical catalysts, biological nanosensors, micro / nano robots and solar panels because of its unique properties. Nanocrystalline silver wire is of great significance in the application of transparent conductive film (TCFs). In this paper, two different methods for the preparation of Ag-based TCFs have been adopted. First, AgNWs were synthesized firstly, then silver nanowires were fixed on the surface of substrate (glass or PET) by stratified scraping and hot pressing to form Ag based TCFs. Secondly, silver nanoparticles were grown on the surface of the spinning wire by electrospinning technique, and then Ag based TCFs were formed by the chemical selective growth method on the surface of the substrate (glass or PET). Many researchers have found that AgNWs with high aspect ratio plays an important role in improving the optoelectronic properties of transparent conductive films. In this paper, silver nanowires were synthesized by ethylene glycol reduction, Ag was provided with Ag NO3 as main agent, ethylene glycol (EG) was used as solvent in the reaction and NO3 was used as inducer, FeCl 3 6H2O as control agent. Silver nanowires (AgNW). With a length of 50 渭 m and a diameter of 60 nm were successfully synthesized at 120 鈩，

本文編號(hào)：2156435