Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403


공학

한국표면공학회지 (55권3호 173-179)

Roll-to-roll process for large-area transfer of Ag nanowire electrode

은 나노 와이어 전극의 대면적 전사를 위한 롤 투 롤 공정

박양규a, 김재필b, 김완호b, 정강a, *, 정호중b, *
Yangkyu Parka, Jae Pil Kimb, Wan Ho Kimb, Kang Junga, *, Ho-Jung Jeongb, *

a전남대학교, 기계설계공학부 · b한국광기술원, 조명소재부품연구센터
a Department of Mechanical Design Engineering, Chonnam National University, 50 Daehak-ro, Yeosu, Chonnam 59626, South Korea b Lighting Materials and Components Research Center, Korea Photonics Technology Institute (KOPTI), Gwangju 61007, Republic of Korea

DOI : 10.5695/JSSE.2022.55.3.173

Abstract

This study presents a roll-to-roll process which is capable of Ag nanowire (AgNW) transfer from polyethylene terephthalate (PET) film to polycarbonate (PC) film. We developed a roll-to-roll machine that consists of two film suppliers, a coater of photo-curable resin, a film laminator, an ultraviolet (UV) exposure unit, and a film winder to facilitate large-area electrode transfer between different flexible substates. Using the process, optimal fabrication condition was investigated by parametric experiments in terms of the UV exposure time, number of thermal cycling, and exposure time of high temperature and humidity. A fabricated AgNW on PC film showed sheet resistance of 52 Ω/sq and optical transmittance of approximately 80 % over a range of visible light.

Keywords

Roll-to-roll; Ag nanowire; AgNW/PET; AgNW/PC.