Polymer Surface Engineering for Efficient Printing of Highly Conductive Metal Nanoparticle Inks

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• 作者：Elena V. Agina ; Alexey S. Sizov ; Mikhail Yu. Yablokov ; Oleg V. Borshchev ; Alexander A. Bessonov ; Marina N. Kirikova ; Marc J. A. Bailey ; Sergei A. Ponomarenko
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2015
• 出版时间：June 10, 2015
• 年：2015
• 卷：7
• 期：22
• 页码：11755-11764
• 全文大小：562K
• ISSN：1944-8252

文摘

An approach to polymer surface modification using self-assembled layers (SALs) of functional alkoxysilanes has been developed in order to improve the printability of silver nanoparticle inks and enhance adhesion between the metal conducting layer and the flexible polymer substrate. The SALs have been fully characterized by AFM, XPS, and WCA, and the resulting printability, adhesion, and electrical conductivity of the screen-printed metal contacts have been estimated by cross-cut tape test and 4-point probe measurements. It was shown that (3-mercaptopropyl)trimethoxysilane SALs enable significant adhesion improvements for both aqueous- and organic-based silver inks, approaching nearly 100% for PEN and PDMS substrates while exhibiting relatively low sheet resistance up to 0.1 惟/sq. It was demonstrated that SALs containing functional 鈭扴H or 鈭扤H₂ end groups offer the opportunity to increase the affinity of the polymer substrates to silver inks and thus to achieve efficient patterning of highly conductive structures on flexible and stretchable substrates.