title: Light-induced Soret effect and adsorption of nanocrystals in organic solvents.
abstract: A light-induced Soret effect accompanied by photoinduced adsorption of pigment nanoparticles is described in organic solvents. We report an unexpected inversion of the nanoparticle flux which is directed along the temperarture gradient at short exposures to the light and switches against the gradient at longer exposures. This change of flux direction is due to light-induced adsorption of the nanocrystals onto the substrates of the cell.
authors.affiliation: Institute of Physics of National Academy of Sciences of Ukraine, Pr. Nauky 46, 03028, Kyiv, Ukraine. sergeykredenser@gmail.com.
authors.forename: S
authors.initials: S
authors.lastname: Kredentser
authors.affiliation: Otto-von-Guericke-Universität Magdeburg, 4120, Magdeburg, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Eremin
authors.affiliation: Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud, 91405, Orsay, France.
authors.forename: P
authors.initials: P
authors.lastname: Davidson
authors.affiliation: Taras Shevchenko National University of Kyiv, 01601, Kyiv, Ukraine.
authors.forename: V
authors.initials: V
authors.lastname: Reshetnyak
authors.affiliation: Otto-von-Guericke-Universität Magdeburg, 4120, Magdeburg, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Stannarius
authors.affiliation: Institute of Physics of National Academy of Sciences of Ukraine, Pr. Nauky 46, 03028, Kyiv, Ukraine.
authors.forename: Yu
authors.initials: Y
authors.lastname: Reznikov
mesh_terms: D000327:Adsorption; D000473:Alkanes / Q000737:chemistry*; D004396:Coloring Agents; D004355:Drug Stability; D008027:Light; D053758:Nanoparticles / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry*; D013696:Temperature; D055471:Thermal Diffusion
chemical_list: D000473:Alkanes; D004396:Coloring Agents; D012997:Solvents; C007548:n-dodecane
keywords: Soft Matter: Colloids and Nanoparticles