Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Preparation and characterization of silver nanowire transparent electrodes using shear-coating

Shear-coating을 사용한 은 나노와이어 투명 전극 제조 및 특성 분석

  • Cho, Kyung Soo (Department of Materials and Manufacturing Engineering, Hanbat National University) ;
  • Hong, Ki-Ha (Department of Materials Science and Engineering, Hanbat National University) ;
  • Park, Joon Sik (Department of Materials and Manufacturing Engineering, Hanbat National University) ;
  • Chung, Choong-Heui (Department of Materials and Manufacturing Engineering, Hanbat National University)
  • 조경수 (한밭대학교 공과대학 소재시스템공학과) ;
  • 홍기하 (한밭대학교 공과대학 신소재공학과) ;
  • 박준식 (한밭대학교 공과대학 소재시스템공학과) ;
  • 정중희 (한밭대학교 공과대학 소재시스템공학과)
  • Received : 2020.07.23
  • Accepted : 2020.08.26
  • Published : 2020.08.31
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Abstract

Indium tin oxide (ITO) used a transparent electrode of a photoelectric device has a low sheet resistance and a high transmittance. However, ITO is disadvantageous in that the process cost is expensive, and the process time is long. Silver nanowires (AgNWs) transparent electrodes are based on a low cost solution process. In addition, it has attracted attention as a next-generation transparent electrode material that replaces ITO because it has similar electrical and optical characteristic to ITO, it is noted as a. AgNW thin films are mainly produced by spin-coating. However, the spin-coating process has a disadvantage of high material loss. In this study, the material loss was reduced by using about 2~10 ㎕ of AgNW solution on a (25 × 25) ㎟ substrate using the shear-coating method. It was also possible to align AgNWs in the drag direction by dragging the meniscus of the solution. The electro-optical properties of the AgNW thin film were adjusted by changing the experimental parameters that the amount of AgNWs suspension, the gap between the substrate and the blade, and the coating speed. As a result, AgNW thin films with a transmittance of 90.7 % at a wavelength of 550 nm and a sheet resistance of 15 Ω/□ was deposited and exhibited similar properties to similar AgNW transparent electrodes studied by other researchers.

Keywords

References

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