광경화 점착 테이프를 이용한 은 나노와이어 기반 투명전극 패터닝 공법
A Novel Patterning Method for Silver Nanowire-based Transparent Electrode using UV-Curable Adhesive Tape
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은 나노와이어는 금속 특유의 고전도 특성, 낮은 Percolation threshold 및 고투과 특성을 나타내어 차세대 투명전극 물질로 각광받고 있다. 이를 플렉서블 및 웨어러블 디바이스, 전자피부 디바이스 등과 같은 다양한 분야에 활용하기 위해서는 은 나노와이어 전극을 필요한 형태로 패터닝 하기 위한 기술이 필수적으로 요구된다. 일반적으로, 은 나노와이어를 패터닝하기 위한 공법으로는 포토리소그래피 및 에칭, 프린팅, 레이저 Ablation 등을 들 수 있으나, 이러한 패터닝 기술들은 공정 절차가 복잡하거나 높은 공정 비용 등의 단점이 있다. 이에 본 연구에서는 UV-curable 점착제 기반의low-cost 은 나노와이어 패터닝 공법을 개발하고자 하였다. 은 나노와이어 네트워크가 형성된 폴리우레탄 필름에 UV 경화형 테이프를 부착하고, UV를 선택적으로 조사한 뒤, 다시 UV 경화형 테이프를 벗겨내는 3단계의 간단한 공정만으로은 나노와이어 패턴을 성공적으로 형성할 수 있었으며, 간단한 구현 원리 및 분석 결과를 본 논문에서 보고하고자 한다.
Abstract
Silver nanowires (AgNWs) intrinsically possess high conductivity, ductility, and network structure percolated in a low density, which have led to many advanced applications of transparent and flexible electronics. Most of these applications require patterning of AgNWs, for which photolithographic and printing-based techniques have been widely used. However, several drawbacks such as high cost and complexity of the process disturb its practical application with patterning AgNWs. Herein, we propose a novel method for the patterning of AgNWs by employing UV-curable adhesive tape with a structure of liner/adhesive layer/polyolefin (PO) film and UV irradiation to simplify the process. First, the UV-curable adhesive tape was attached to AgNWs/polyurethane (PU), and then selectively exposed to UV irradiation by using a photomask. Subsequently, the UV-curable adhesive tape was peeled off and consequently AgNWs were patterned on PU substrate. This facile method is expected to be applicable to the fabrication of a variety of low-cost, shapedeformable transparent and wearable devices.
참고문헌 (17)
- J. Kwon, "Recent progress in silver nanowire based flexible", wearable optoelectronics, 2018, pp.6, 7445~
- S. Cheon, "High performance triboelectric nanogenerators based on electrospun polyvinylidene fluoridesilver nanowire composite nanofibers", Adv. Funct. Mater, 28(2), pp.1703778~ (2018)
- Y. Sun, "Flexible organic photovoltaics based on water-processed silver nanowire electrodes", Nat. Electron, 2, pp.513~ (2019)
- D. T. Nguyen, "Facile fabrication of highly conductive, ultrasmooth, and flexible silver nanowire electrode for organic optoelectronic devices", ACS Appl. Mater. Interfaces, 11, pp.42469~ (2019)
- S. Kang, "Transparent and conductive nanomembranes with orthogonal silver nanowire arrays for skin-attachable loudspeakers and microphones", Sci. Adv, 4(8), pp.8772~ (2018)
- J. H. Cho, "Transparent and stretchable strain sensors based on metal nanowire microgrids for human motion monitoring", Nanotechnology, 29(15), pp.155501~ (2018)
- X. Peng, "A breathable, biodegradable, antibacterial and self-powered electronic skin based on all-nanofiber triboelectric nanogenerators", Sci. Adv, 6(26), pp.9624~ (2020)
- Y. Chen, "Patterned, flexible, and stretchable silver nanowire", polymer composite films as transparent conductive electrodes, 2019, pp.11, 31210~
- 김대곤, "유연·신축성 전자 소자 개발을 위한 은 나노와이어 기반 투명전극 기술", 마이크로전자 및 패키징학회지, 22(1), pp.7~14 (2015), 한국마이크로전자및패키징학회[DOI]
- 안영석, "은나노와이어·전도성고분자 하이브리드 필름을 이용한유연 투명 정전용량형 압력 센서의 특성", 마이크로전자 및 패키징학회지, 23(3), pp.21~29 (2016), 한국마이크로전자및패키징학회
- Y. Lin, "Facile and efficient patterning method for silver nanowires and its application to stretchable electroluminescent displays", ACS Appl. Mater. Interfaces, 12, pp.24074~ (2020)
- H. S. Jo, "Wearable, stretchable, transparent all-in-one soft sensor formed from supersonically sprayed silver nanowires", ACS Appl. Mater. Interfaces, 11, pp.40232~ (2019)
- V. Martinez, "Stretchable silver nanowire-elastomer composite microelectrodes with tailored electrical properties", ACS Appl. Mater. Interfaces, 7, pp.13467~ (2015)
- Y. Ahn, "Highly conductive and flexible silver nanowire-based microelectrodes on biocompatible hydrogel", ACS Appl. Mater. Interfaces, 6, pp.18401~ (2014)
- Y. Fang, "Architectural engineering of nanowire network fine pattern for 30 μm wide flexible quantum dot light-emitting diode application", ACS Nano, 10(11), pp.10023~ (2016)
- D. J. Finn, "Inkjet printing of silver nanowire networks", ACS Appl. Mater. Interfaces, 7, pp.9254~ (2015)
- T. Wan, "Facile patterning of silver nanowires with controlled polarities via inkjet-assisted manipulation of interface adhesion", ACS Appl. Mater. Interfaces, 12, pp.34086~ (2020)