논문 국내 국제전문학술지(SCI급) Electrodeposited Hierarchical Silver Network Transparent Conducting Electrodes with Excellent Optoelectronic Properties and Mechanical Flexibility
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2023-08
- 저자명 정중희, 위정섭, 박준식, 이상엽, 신기현, 전상현, 양은영, 강서인
- 학술지명 Electronic Material Letters
- 발행국가 국내
- 논문언어 외국어
홈페이지논문 초록 (Abstract)
Mechanically flexible transparent conductive electrodes (TCEs) with high optoelectronic performance are essential for flexible or wearable optoelectronic devices, which are currently receiving a considerable amount of attention. In this study, we investigate the structural, electrical, optical and mechanical properties of electrodeposited hierarchical silver network TCEs consisting of two layers of silver nanowires (AgNWs) and a silver micromesh. Hierarchical structures are known to improve the optoelectronic properties of network-type TCEs. To fabricate an electrodeposited hierarchical network, a AgNW solution is first spun onto a substrate to form randomly distributed AgNWs, and a silver micromesh is then formed on the AgNWs. Subsequently, silver is electrodeposited onto the hierarchical network. As a result of the electrodeposition, AgNW-AgNW and AgNW-silver micromesh contacts are effectively welded, and the dimensions of the AgNWs and the silver micromesh are optimized to maximize the figure of merit of the TCE. Furthermore, the electrodeposited hierarchical silver network shows excellent mechanical flexibility and much less degradation of its sheet resistance than that experienced by ITO upon repeated convex and concave bending. Its resulting optoelectronic and mechanically flexible performance is superior to that of commercialized ITO.