Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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A Study of the Yellowing Phenomenon in the Laser Patterning of Silver Nanowire

은 나노와이어 레이저 패터닝 시 발생하는 황변 현상에 대한 연구

  • Hwang, June Sik (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST)) ;
  • Park, Jong Eun (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST)) ;
  • Yang, Min Yang (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST))
  • Received : 2015.01.12
  • Accepted : 2015.01.26
  • Published : 2015.02.15
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Abstract

In this study, we introduce a yellowing phenomenon in silver nanowire laser patterning and attempt to understand the cause of this phenomenon. Silver nanowire is a promising alternative to indium tin oxide as a transparent electrode owing to its flexibility. Additionally, silver nanowire can be easily patterned by laser ablation, which is free of dangerous chemicals. However, a yellowish color change reducing visibility is observed on the patterned area of the silver nanowires, and this yellowing phenomenon prevents the use of silver nanowire as a transparent electrode material. We concluded that resolidified debris of melted and evaporated silver nanowires after laser ablation causes the color change of the electrode. Further research is needed to determine a means of mitigating this yellowing phenomenon.

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References

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