TY - JOUR
T1 - Nanoparticle deposits near the contact line of pinned volatile droplets
T2 - Size and shape revealed by atomic force microscopy
AU - Askounis, Alexandros
AU - Orejon, Daniel Mantecon
AU - Koutsos, Vasileios
AU - Sefiane, Khellil
AU - Shanahan, Martin E.R.
PY - 2011/5/7
Y1 - 2011/5/7
N2 - We report on the structure of ring deposits formed following the free evaporation of a sessile droplet containing nanoparticles. The nanostructure of the evaporatively formed deposits was revealed using atomic force microscopy (AFM). The structures were found to form a peak about 5 microns wide and one micron high and to exhibit a gentle slope gradually increasing in height in the direction of the three phase contact line motion. A theory is proposed to explain the formation and shape of these deposits. A comparison between the theory and the experiments shows a very good qualitative and quantitative agreement.
AB - We report on the structure of ring deposits formed following the free evaporation of a sessile droplet containing nanoparticles. The nanostructure of the evaporatively formed deposits was revealed using atomic force microscopy (AFM). The structures were found to form a peak about 5 microns wide and one micron high and to exhibit a gentle slope gradually increasing in height in the direction of the three phase contact line motion. A theory is proposed to explain the formation and shape of these deposits. A comparison between the theory and the experiments shows a very good qualitative and quantitative agreement.
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U2 - 10.1039/c1sm05241a
DO - 10.1039/c1sm05241a
M3 - Article
AN - SCOPUS:79955008454
SN - 1744-683X
VL - 7
SP - 4152
EP - 4155
JO - Soft Matter
JF - Soft Matter
IS - 9
ER -