Flash-induced nanowelding of silver nanowire networks for transparent stretchable electrochromic devices

Title
Flash-induced nanowelding of silver nanowire networks for transparent stretchable electrochromic devices
Authors
홍재민김선홍오영수윤인선이치학주병권
Keywords
Electrochromic devices; Silver nanowires; Light-induced nanowelding
Issue Date
2018-02
Publisher
Scientific Reports
Citation
VOL 8, NO 2763-10
Abstract
Electrochromic devices (ECDs) are emerging as a novel technology for various applications like commercialized smart window glasses, and auto-dimming rear-view mirrors. Recently, the development of low-power, lightweight, flexible, and stretchable devices has been accelerated to meet the growing demand in the new wearable devices market. Silver nanowires (AgNWs) can become new primary transparent conducting electrode (TCE) materials to replace indium tin oxide (ITO) for ECDs. However, issues such as substrate adhesion, delamination, and higher resistance still exist with AgNWs. Herein, we report a high-performance stretchable flash-induced AgNW-network-based TCE on surface-treated polydimethylsiloxane (PDMS) substrates. A Xe flash light method was used to create nanowelded networks of AgNWs. Surface silane treatments increased the adhesion and durability of the films as well. Finally, ECDs were fabricated under the optimal conditions and examined under strained conditions to demonstrate the resistance and mechanical behaviours of the devices. Results showed a flexible and durable film maintaining a high level of conductivity and reversible resistance behaviour, beyond those currently achievable with standard ITO/PET flexible TCEs.
URI
http://pubs.kist.re.kr/handle/201004/67470
ISSN
2045-2322
Appears in Collections:
KIST Publication > Article
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