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Experimental Study on Coffee-ring Effect of Silver Nanowire with Different Parameters

은 나노와이어 특성에 따른 커피 링 현상에 대한 실험적 연구

  • Kang, Giho (Dept. of Mechanical Engineering, Sungkyunkwan University) ;
  • Wang, Xiaofeng (Dept. of Mechanical Engineering, Sungkyunkwan University) ;
  • Seong, Baekhoon (Korean Institute of Ocean Science and Technology(KIOST)) ;
  • Lee, Hyungdong (Dept. of Mechanical Engineering, Sungkyunkwan University) ;
  • Byun, Doyoung (Dept. of Mechanical Engineering, Sungkyunkwan University)
  • Received : 2017.07.27
  • Accepted : 2017.08.26
  • Published : 2017.08.31

Abstract

A coffee-ring effect is from capillary flow by different evaporation rate across the droplet. The capillary flow tends particles to accumulate at the edges of the droplet and makes the ring-shaped stain pattern. These coffee-ring formation and suppression of coffee-ring have been a critical role in printing and coating technologies. In this study, we present the experimental study on coffee-ring effect of silver nanowire inside the evaporating sessile droplet. Size and concentration effect of nanowires at coffee-ring effect has been investigated. From the coffee-ring, we observed the regimes of connected rings and disconnected ones and measure the resistivity of single ring pattern with different nanowire length.

Keywords

References

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