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Nanoparticle assembly and liquids on...

Alvine, Kyle James.

Nanoparticle assembly and liquids on nanostructured surfaces.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Nanoparticle assembly and liquids on nanostructured surfaces.
Author:	Alvine, Kyle James.
Description:	99 p.
Notes:	Adviser: Peter S. Pershan.
Notes:	Source: Dissertation Abstracts International, Volume: 67-05, Section: B, page: 2613.
Contained By:	Dissertation Abstracts International67-05B.
Subject:	Physics, Condensed Matter.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3217658
ISBN:	9780542691751

Nanoparticle assembly and liquids on nanostructured surfaces.
Alvine, Kyle James.

Nanoparticle assembly and liquids on nanostructured surfaces. - 99 p.

Adviser: Peter S. Pershan.

Thesis (Ph.D.)--Harvard University, 2006.

Monolayers of Au-core, organic-shell stabilized nanocrystals were created within nanoporous alumina by capillary absorption of a nanoparticle solution and subsequent drying. In-situ small angle scattering was measured as a function of added solvent volume. X-ray scattering indicated that the nearest neighbor separation increased and the monolayer ordering decreased as solvent was added to the system. This change was reversible upon removal of solvent from the sample. In the nanopore-confined geometry, strong hysteresis was observed in the absorption and desorption of solvent. In addition to the changes in the monolayer, the temporary formation of isotropic nanoparticle aggregates were also observed during desorption of solvent.

ISBN: 9780542691751Subjects--Topical Terms:

226939
Physics, Condensed Matter.

Nanoparticle assembly and liquids on nanostructured surfaces.
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100 0 $a Alvine, Kyle James. $3 264107
245 1 0 $a Nanoparticle assembly and liquids on nanostructured surfaces.
300 $a 99 p.
500 $a Adviser: Peter S. Pershan.
500 $a Source: Dissertation Abstracts International, Volume: 67-05, Section: B, page: 2613.
502 $a Thesis (Ph.D.)--Harvard University, 2006.
520 # $a Monolayers of Au-core, organic-shell stabilized nanocrystals were created within nanoporous alumina by capillary absorption of a nanoparticle solution and subsequent drying. In-situ small angle scattering was measured as a function of added solvent volume. X-ray scattering indicated that the nearest neighbor separation increased and the monolayer ordering decreased as solvent was added to the system. This change was reversible upon removal of solvent from the sample. In the nanopore-confined geometry, strong hysteresis was observed in the absorption and desorption of solvent. In addition to the changes in the monolayer, the temporary formation of isotropic nanoparticle aggregates were also observed during desorption of solvent.
520 # $a The evolution of nano-thick wetting films was probed on silicon patterned by nanocavities and within nanoporous alumina. For cavities, two different regimes, filling and growing, were observed as a function of Delta T. Geometrical effects were manifested in a DeltaT adsorption dependence stronger than the predicted van der Waals behavior of Delta T1/3 for flat surfaces, but weaker than expected for non-truncated cavities. Adsorption in the cavities and nanopores followed the Kelvin equation with the filling transition occurring approximately at 2gamma/D with observable hysteresis.
520 # $a The solvent-mediated self-assembly of nanoparticles in confined geometries and the evolution of nano-thick wetting liquids on nano-structured surfaces have been probed, in-situ, with synchrotron x-ray scattering techniques. In all experiments, the solvent volume condensed on the sample was precisely controlled reversibly within a hermetically sealed environmental chamber via a thermal offset, DeltaT, between the sample and a liquid reservoir.
590 $a School code: 0084.
650 # 0 $a Physics, Condensed Matter. $3 226939
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710 0 # $a Harvard University. $3 212445
773 0 # $g 67-05B. $t Dissertation Abstracts International
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790 1 0 $a Pershan, Peter S., $e advisor
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