Search for dissertations about: "Difference Spectroscopy"

Showing result 1 - 5 of 188 swedish dissertations containing the words Difference Spectroscopy.

2. 1. Infrared spectroscopy : a tool for protein characterization

   Author : Chenge Li; Andreas Barth; Silvia Maria Doglia; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; biokemi;

   Abstract : Infrared (IR) spectroscopy, which belongs to vibrational spectroscopy, detects the vibrations of molecules, for example, proteins. The absorption of the peptide group gives rise to 9 characteristic bands in the infrared region, named A, B, I-VII, with a decreasing energy or wavenumber (cm-1). READ MORE

4. 2. Infrared spectroscopy : Method development and ligand binding studies

   Author : Saroj Kumar; Andreas Barth; Janos Mink; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Infrared; Ligand binding; method development; Biophysical chemistry; Biofysikalisk kemi; biofysik; Biophysics;

   Abstract : Infrared spectroscopy detects molecular vibrations and assesses the properties of molecules and their environment. It is a powerful technique to detect ligand induced changes in biomolecules as it has distinct signals and provides different levels of structural information. READ MORE

5. 3. Diode laser spectroscopy in extended wavelength ranges

   Author : Ulf Gustafsson; Atomfysik; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; diode-laser spectroscopy; frequency-modulation spectroscopy; frequency conversion; fluorescence spectroscopy; scattering; diffraction; Fysicumarkivet A:2000:Gustafsson; Atomic and molecular physics; Atom- och molekylärfysik; absorption spectroscopy;

   Abstract : Diode laser spectroscopy performed in the ultraviolet, visible and infrared spectral regions is presented. The accessible wavelength range for visible and near-infrared diode lasers is extended by the use of sum- and difference-frequency generation. READ MORE

6. 4. Continuous-filtering Vernier spectroscopy

   Author : Chuang Lu; Aleksandra Foltynowicz; Ove Axner; Wei Ren; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; spectroscopy; spectrometer; laser; optical frequency comb; optical cavity; NIR; MIR; flame; robust; time resolution; spectrum; fysik; Physics;

   Abstract : Continuous-filtering Vernier spectroscopy (CF-VS) is a laser-based detection technique that combines the broad spectral coverage of an optical frequency comb (OFC) with the enhanced interaction length provided by an optical cavity. The resonances of the cavity filter the OFC to a small group of comb modes that probe the transitions of the species present in the cavity. READ MORE

7. 5. Towards Mixed Molecular Layers for Dye-Sensitized Solar Cells : A Photoelectron Spectroscopy Study

   Author : Johan Oscarsson; Håkan Rensmo; Erik Johansson; Anders Hagfeldt; Gunnar Öhrwall; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; dye-sensitized solar cell; DSC; mesoscopic solar cell; photoelectron spectroscopy; PES; XPS; interface; TiO2; NiO; co-adsorption; co-adsorbent; collaborative sensitization; mixed molecular layers; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

   Abstract : The increasing demand for renewable energy has led to substantial research on different solar cell technologies. The dye-sensitized solar cell (DSC) is a technology utilizing dye molecules for light absorption. READ MORE