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http://dx.doi.org/10.5407/jksv.2017.15.2.016

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

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)
Publication Information
Journal of the Korean Society of Visualization / v.15, no.2, 2017 , pp. 16-20 More about this Journal
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
Silver Nanowire; Coffee Ring Effect; Droplet Evaporation;
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