저저항의 전기적 접촉 및 강한 기계적 접촉을 형성하는 자가 접착형 투명 유연 전극

Abstract

Flexible transparent conductive electrodes are key elements of emerging flexible electronic and energy devices. These electrodes should form an intimate physical contact with various flexible devices to ensure stable, low-resistant electrical contacts. However, contact formation techniques are based largely on conventional soldering, mechanical clamping, and thin film deposition. These generally result in damaged, contaminated, bulky, and uncontrollable contact interfaces. Here, we present self-attachable, flexible, transparent, and conductive electrode that is based on distinctive design of regular grid patterns into which bioinspired adhesive architectures and percolating Ag nanowires are integrated. Based on this integrated design, the proposed electrode forms reliable, low-resistant electrical contacts; strong mechanical adhesive contacts; and ultra-clean, damage-free contact interfaces with active device components by attaching onto the components without using additional conductive pastes, mechanical pressing, or vacuum deposition processes. Moreover, specific electronic circuits can be generated on the electrode surface by a selective deposition of Ag nanowires. This enables simple interconnections of diverse electronic components on its surface.