Search for dissertations about: "Raman-spectrum"
Showing result 1 - 5 of 10 swedish dissertations containing the word Raman-spectrum.
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1. Nanostructures of Graphite and Amorphous Carbon - Fabrication and Properties
Abstract : Nanoscience is a well-established research area, which concerns properties and fabrication of objects with typical dimensions on the 1-100 nanometer length scale. A central issue has been the development of techniques for fabrication and characterization of nanometer sized objects, which have contributed considerably to progress in both practical applications and fundamental research. READ MORE
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2. Theoretical modeling of x-ray and vibrational spectroscopies applied to liquid water and surface adsorbates
Abstract : This thesis presents results of theoretical modeling of x-ray and vibrational spectroscopies applied to liquid water and to CO adsorbed on a Ni(100) surface. The Reverse Monte Carlo method is used to search for water structures that reproduce diffraction, IR/Raman and x-ray absorption by fitting them to experimental data and imposed constraints. READ MORE
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3. Laser induced effects in carbon nanotubes : implications for Raman characterization of functionalized systems
Abstract : Carbon nanotubes (CNTs) have attracted attention over the past decade because of their outstanding mechanical and electronic properties. These tiny tubular shells made of carbon atoms can be metallic or semiconducting and while having diameters of only about one nanometer (10-9 m), they can be up to centimeters in length, making them quasi one-dimensional (molecular wires). READ MORE
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4. Raman Spectroscopy and Hyperspectral Analysis of Living Cells Exposed to Nanoparticles
Abstract : Nanoparticles, i.e. particles with at least one dimension smaller than 100 nm, are present in large quantities in ambient air and can also be found in an increasing amount of consumer products. It is known that many nanomaterials have physicochemical properties that differ from physicochemical properties of the same material in bulk size. READ MORE
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5. Theoretical Characterization of Optical Processes in Modecular Complexes
Abstract : The main theme of this thesis is to study effects of different environments on geometric and electronic structures, as well as optical responses, of molecules using time-(in)dependent density functional theory. Theoretical calculations have been carried out for properties that can be measured by conventional and advanced experimental techniques, including one-photon absorption (OPA), two-photon absorption (TPA), surface-enhanced Raman scattering (SERS) and second order nonlinear optical (NLO) response. READ MORE
