Extremely Robust and Reliable Transparent Silver Nanowire-Mesh Electrode with Multifunctional Optoelectronic Performance through Selective Laser Nanowelding for Flexible Smart Devices

Title
Extremely Robust and Reliable Transparent Silver Nanowire-Mesh Electrode with Multifunctional Optoelectronic Performance through Selective Laser Nanowelding for Flexible Smart Devices
Authors
김상우김성준윤호규
Keywords
Transparent electrode; nanowire-mesh; silver nanowire; flexible device; electromagnetic shielding; selective laser nanowelding
Issue Date
2021-02
Publisher
Advanced engineering materials
Citation
VOL 온라인게재, 온라인게재
Abstract
As the demand for foldable or rollable smart electronic devices increases, the issue of damage caused by cyclic fatigue of the flexible transparent electrode (FTE) due to repeated bending stress at extremely low bending radius is emerging. Herein, it is demonstrated that a mesh electrode composed of silver nanowires (Ag NW?mesh) with multifunctional optoelectronic performance microfabricated without photomasking via selective laser nanowelding (SLNW) followed by soft­etching of highly ductile Ag NWs on a flexible polymer film exhibits long­term cycling stability at bending stresses of a 1?mm radius of curvature (ROC). In the optimal NW microgrid pattern design, the cycle fatigue resistance of NW?mesh electrodes considerably increases with increase in NW areal mass density (AMD) and decreasing microgrid spacing due to the improved weldability and networkability of NWs at a low laser energy density of 1?J?cm?2. A diagonally gridded NW?mesh electrode with 30?μm line spacing exhibits extremely high reliability with little change in the performance of Joule heating and electromagnetic interference shielding under long­term bending stresses of 300?000 cycles at 1?mm ROC. Being a simple process without photomasking, this method can easily use a multifunctional FTE with ultrahigh fatigue resistance and reliability suitable for highly flexible smart devices.
URI
http://pubs.kist.re.kr/handle/201004/73022
ISSN
1438-1656
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE