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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Organic-inorganic nanocomposites for renewable energy conversion devices

Jung, Jaehan 08 June 2015 (has links)
A robust synthetic routes to crafting conjugated polymer (CP) grafted semiconducting nanocrystal (NC) nanocomposites with the intimate contact between these two semiconducting constituents was introduced. The architecture of semiconducting nanocrystals (i.e., CdSe, and CdTe) was controlled by tuning the fraction of mobile bifunctional ligands, yielding azide functionalized CdSe nanorods, CdTe tetrapods, and CdSe tetrapods after conversion of bromide group into azide moiety. Subsequently, ethynyl end-functionalized poly(3-hexylthiophene) (P3HT) were grafted onto NC surfaces via catalyst-free click chemistry. The intimate contact between P3HT and semiconducting NCs rendered the effective dispersion of NCs in nanocomposites, and facilitated their efficient electronic interaction as can be confirmed by photoluminescence spectroscopy. The success of coupling reaction was confirmed by Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy. Furthermore, the effect of size and shape of semiconducting NCs and the types of functional ligands on the photovoltaic device performance was studied.
22

Thermally-responsive interpenetrating polymer network nanoparticles as intelligent therapeutic systems

Owens, Donald E., 1979- 28 August 2008 (has links)
Not available / text
23

Thermostatted models for hysteresis in magnetic nanoparticles

Robb, Daniel Thomas 10 June 2011 (has links)
Not available / text
24

Mathematical modelling of nanoparticles from the gas-phase

Sander, Markus January 2011 (has links)
No description available.
25

Preparation, characterisation and catalytic activity of palladium, silver and silver-based nanoparticles

Cabaj, Maciej January 2013 (has links)
No description available.
26

Synthesis and Characterization of Ferromagnetic Polymer-Coated Cobalt Nanoparticles in Multi-Gram Quantities

Rasmussen, Sarah Grace January 2009 (has links)
Ferromagnetic cobalt nanoparticles (CoNPs) are of interest due to their inherent dipolar properties which enable one-dimensional (1-D) nanoparticle self-assembly. As their magnetic properties change drastically with their size, the ability to selectively synthesize monodisperse metallic nanoparticles of varying diameters remains a crucial challenge. Although there have been extensive studies performed on various metallic nanoparticles yielding superparamagnetic materials (such as Fe3O4, Fe2O3, Co metals), research concerning the synthesis of ferromagnetic materials has only recently resurged within the last 20 years.In this work, methods for the synthesis of ferromagnetic cobalt nanoparticles on multi-gram scales were investigated. A one-pot synthetic method which produced up to 4 grams of cobalt nanoparticles per reaction was developed, and it was also found that this reaction had a direct correlation with particle size and reaction temperature, allowing for the large-scale synthesis of polystyrene-coated cobalt nanoparticles of pre-selected diameters.
27

Poly(N-Isopropylacrylamide) based microgels : I Fundamental properties of core/shell microgels II Assembly and photothermal patterning of microgel colloidal crystals

Jones, Clinton D. 05 1900 (has links)
No description available.
28

Preparation of supported Pt-based mixed nanoparticles and their catalytic properties

Tsang, Kwok-ying. January 2007 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2007. / Also available in print.
29

Dendrimer templated silica networks synthesis, characterization and application in silver nanoparticle construction /

Liu, Xiaojun, January 1900 (has links)
Thesis (M.Sc.). / Written for the Dept. of Chemistry. Title from title page of PDF (viewed 2008/07/30). Includes bibliographical references.
30

Dumbbell shaped dendrimers synthesis, characterization and applications in assembling silver nanoparticles /

Vassilieff, Tatiana S. January 1900 (has links)
Thesis (M.Sc.). / Written for the Dept. of Chemistry. Title from title page of PDF (viewed 2008/07/30). Includes bibliographical references.

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