Publication Details (including relevant citation information): Askounis, Alexandros, Orejon, Daniel, Koutsos, Vasileios, Sefiane, Khellil, Shanahan, Martin E. R., Soft Matter, 2011, 7 (9), pp 4152-4155
Abstract: 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.
Address (URL): http://dx.doi.org/10.1039/C1SM05241A