文章信息/Info

Title:

research progress of  flexible transparent electrode based on silver nanowires

作者:

段莎莎; 張玲; 李春忠

華東理工大學，材料科學與工程學院，超細材料制備與應用教育部重點實驗室

Author(s):

Duan shasha;  Zhang ling;  Li chunzhong 

關鍵詞:

銀納米線; 柔性透明電極; 可拉伸電極

DOI:

10.7502/j.issn.1674-3962.2016.07.09

文獻標志碼:

A

摘要:

柔性導電材料是下一代柔性電子設備中不可缺少的組成部分，高性能柔性導電材料的研究和開發對于柔性電子設備的發展具有重要的意義，如：智能手機、電子皮膚、可折疊的電子書、應變傳感器以及可拉伸太陽能電池。由銦錫氧化物（ITO）制備的傳統的剛性導電材料已經不能滿足新型的柔性設備的需求，幾種材料被用來取代ITO，包括：石墨烯、碳納米管、導電高分子以及金屬納米材料。在這幾種取代ITO的材料中，銀納米線（AgNWs）作為一種新型的納米材料，不僅具備高的電導率，納米材料的尺寸效應同時又賦予其優異的光學性能和柔韌性，使其在柔性導電材料的制備中具有非常廣闊的應用前景。本文介紹了AgNWs在柔性透明電極和可拉伸電極中的應用。首先介紹了AgNWs柔性透明電極的制備方法和AgNWs膜的后處理方法，闡述了每種方法的優勢和劣勢。將AgNWs與可拉伸基體結合可獲得AgNWs基可拉伸電極。介紹了幾種不同形式的AgNWs基可拉伸電極包括：二維的、三維的以及纖維狀的電極，以及不同形式電極對應的制備方法。除此以外，還介紹了通過將AgNWs與第二導電組分的復合獲得性能優異的柔性導電材料，最后對AgNWs基柔性電極未來的發展進行了展望。

Abstract:

Flexible and conductive materials (FCMs) are the key building blocks of next-generation electronics such as smart phone, E-skins, folding E-books, strain sensors as well as stretchable solar cell. Thus, fabricating high-quality FCMs is of great importance to the development of future flexible electronics. Traditional conductive materials are mainly prepared by indium tin oxide (ITO) which is rigid and could not satisfy the needs of novel flexible electronics. Several materials have been applied to replace ITO in the fabrication of flexible electrodes including graphene, carbon nanotubes, conducting polymer and metal nano-materials. Among all the alternatives of ITO, silver nanowires (AgNWs), as a novel nano-material, inherited the high electrical conductivity from metal Ag. Besides, the nanometer-sized effect imparts AgNWs both excellent optical property and flexibility, which endows it great potential in the application of FCMs. This review separately illustrates flexible transparent electrodes (FTEs) and stretchable electrodes based on AgNWs. For AgNWs-based FTEs,several coating methods and the post-treatment of AgNWs-based FTEs such as high-temperature annealing and mechanical pressing were introduced and the advantage and disadvantage of each method were stated.In addition,AgNWs-based stretchable electrodes could be prepared by integrating AgNWs with stretchable matric. Here, AgNWs-based electrodes with different shapes were introduced in detail including two-dimensional, three-dimensional as well as fibrous electrodes and their fabrication methods were also presented.Meanwhile, AgNWs are composited with a second electrically conductive material to obtain flexible electrodes with more excellent performance. Finally, the future developments ofAgNWs-based FCMs were proposed.