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Dissertations / Theses on the topic 'Spectroscopic Properties of W'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Dupuis, Anne-Claire. "V2O3(0001)/Au(111) and /W(110) growth, electronic structure and adsorption properties /." Phd thesis, [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=966531736.

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2

Pfüller, Carsten [Verfasser], Henning [Akademischer Betreuer] Richert, W. Ted [Akademischer Betreuer] Masselink, and Pierre [Akademischer Betreuer] Lefebvre. "Optical properties of single semiconductor nanowires and nanowire ensembles : probing surface physics by photoluminescence spectroscopy / Carsten Pfüller. Gutachter: Henning Richert ; W. Ted Masselink ; Pierre Lefebvre." Berlin : Humboldt Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2011. http://d-nb.info/1015169082/34.

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3

Carnimeo, Ivan. "Computational methods for spectroscopic properties." Doctoral thesis, Scuola Normale Superiore, 2014. http://hdl.handle.net/11384/85802.

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4

Tucker, Sheryl A. (Sheryl Ann). "Spectroscopic Properties of Polycyclic Aromatic Compounds." Thesis, University of North Texas, 1994. https://digital.library.unt.edu/ark:/67531/metadc278682/.

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The fluorescence spectrum of many polycyclic aromatic compounds (PACs) depends upon solvent polarity. The emission spectrum of PAC monomers consists of several major vibronic bands labeled I, II, etc., in progressive order. Emission intensity enhancement of select bands is observed in polar solvents.

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5

El-Kholy, S. M. "Spectroscopic investigation of current zero arc properties." Thesis, University of Liverpool, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384300.

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6

Behera, Swayamprabha. "STABILITY AND SPECTROSCOPIC PROPERTIES OF NEGATIVE IONS." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/210.

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Negative ions play an important role in chemistry as building blocks of salts and oxidizing agents. Halogen atoms, due to their ability to attract electrons, readily form negative ions. Considerable interest exists in the design and synthesis of new negative ions called superhaogens whose electron affinities are much higher than those of halogen atoms. This thesis deals with the design of such species. Using density functional theory I have studied two classes of superhalogens. First one involves d1 transition metal (Sc, Y, La) atoms surrounded by Cl while the second one involves simple metals

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7

Waters, Cecilia Anne. "Optical, spectroscopic and dielectric properties of metal nanoparticles." Thesis, University of Liverpool, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433996.

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8

Jacobsen, S. M. "Chemical, catalytic and spectroscopic properties of titanium (II)." Thesis, University of Strathclyde, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381356.

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9

Meacham, Andrew Paul. "The spectroscopic properties of electrochromic ruthenium dioxolene complexes." Thesis, University of Bristol, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404181.

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10

Reynolds, Darren Michael. "The spectroscopic properties of wastewater and potential constituents." Thesis, Cranfield University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309710.

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11

Wan, Jian. "Theoretical Studies on the Spectroscopic Properties of Molecules." Kyoto University, 2000. http://hdl.handle.net/2433/151556.

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12

Denicolo, Glenda. "Spectroscopic study of stellar population properties in nearby galaxies." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.615676.

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13

He, Weizhong. "Spectroscopic properties of the isolated photosystem II reaction centre." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/46812.

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14

Osman, Mohamed Mubarak El-Sayed. "Spectroscopic and thermodynamic properties of some oxy-sulphur species." Thesis, Royal Holloway, University of London, 1987. http://repository.royalholloway.ac.uk/items/72324928-bfae-44d7-a939-bbbd39c7ee46/1/.

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Raman and infrared activities of aqueous sulphur dioxide solution and of the sodium salts of dithionate, disulphite, sulphite, sulphate, bisulphate, thiosulphate, tetrathionate and dithionite ions have been investigated in the crystal and aqueous states. On the basis of the data obtained, the following conclusions have been derived gauche configuration with group symmetry satisfactorily describes the vibrational activities of the dithionate ion both in the solid and in the aqueous states. Some evidence for the existence of crystalline sodium bisulphite has been revealed. In addition to the wel

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15

Panten, Dietmar. "Spectroscopic properties of degenerate electronic states in negative ions." Université de Marne-la-Vallée, 2003. http://www.theses.fr/2003MARN0148.

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16

Asiaie, Reza. "Spectroscopic, thermal, and dielectric properties of hydrothermally prepared BaTiO3 /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487862972135664.

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17

Lundin, Peter. "Laser Spectroscopic Investigations of Decay Properties in Stored Ions." Doctoral thesis, Stockholm : Department of Physics, Stockholm university, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7768.

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18

Sasmal, S. "Molecular spectroscopic properties in the relativistic coupled cluster framework." Thesis(Ph.D.), CSIR- National Chemical Laboratory, Pune, 2016. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2101.

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19

Mohamed, Mona Bakr. "Metallic and semiconductor nanoparticles : synthesis, characterization and femtosecond laser spectroscopic studies." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/31057.

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20

Kildahl-Andersen, Geir. "Polyenyl cations and radical cations – synthesis, spectroscopic properties and reactions." Doctoral thesis, Norwegian University of Science and Technology, Department of Chemistry, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1790.

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<p>In the present work, polyene precursors for the formation of charged polyenyl species were synthesised. Their conversion to charge delocalised radical cations and diamagnetic mono- and dications was carried out by treatment with Brønsted and Lewis acids. Reaction conditions were optimised to achieve sufficient stability of the charged polyenes for characterisation by modern spectroscopic methods; in particular nearinfrared absorption spectroscopy (NIR), two-dimensional nuclear magnetic resonance (2D NMR), electron paramagnetic resonance (EPR) and dynamic light scattering.</p><p>The full ass

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21

Heutz, Sandrine Elizabeth Monique. "Structural, spectroscopic and morphological properties of molecular thin film heterostructures." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252184.

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22

Mulley, James Stephen. "Electronic, spectroscopic and interface properties of two transition metal oxides." Thesis, University of Reading, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.533743.

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23

Kyeremeh, Kwaku. "Metal complexation, spectroscopic and electrochemical properties of marine secondary metabolites." Thesis, University of Aberdeen, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439964.

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The metal binding properties of the marine pyridoacridine alkaloid ascididemin was studied with a wide range of spectroscopic and spectrometric techniques. MS<sup>n</sup> electrospray ionization mass spectrometry showed that ascididemin binds Cu<sup>2+</sup> and forms either 2 : 1 or 1 : 1 complexes depending on the concentration of the metal ion. Analysis of the MS<sup>n</sup> results showed that there is the possibility of a one electron reduction of Cu<sup>2+</sup> to Cu<sup>+</sup> on complexation to ascididemin. It was hypothesised that this one electron transfer was dependent on the type

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24

McGillivray, G. W. "Spectroscopic and catalytic properties of chromium(II) and vanadium(II)." Thesis, University of Strathclyde, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382304.

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25

Wong, Adrian Thomas. "Quantum chemical studies of the spectroscopic properties of small molecules." Thesis, The University of Sydney, 1993. https://hdl.handle.net/2123/26507.

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This thesis reports on the application of quantum chemical methods to the computation of spectroscopic properties of several small molecules. In the ﬁrst instance, the polarizability and its ﬁrst and second derivatives were calculated for methane using SCF, singles and doubles CI and averaged coupled pair functional methods. The calculated polarizability surface accurately predicted several observables related to the refractive index of CH4 and, using the first derivatives, improved predictions of the fundamental intensities. The ﬁrst and second derivatives were also used, in conjunction with

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26

Rybka, Marcin. "Optical properties of MAX-phase materials." Thesis, Linköping University, Applied Optics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-60008.

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<p> </p><p><p> </p></p><p><p><p> </p></p></p><p>MAX-phase materials are a new type of material class. These materials are potentiallyt echnologically important as they show unique physical properties due to the combination of metals and ceramics. In this project, spectroscopic ellipsometry in the spectral range of 0.06 eV –6.0 eV was used to probe the linear optical response of MAX-phases in terms of the complexd dielectric function <em>ε(ω) = ε1(ω) + iε2(ω<em>). </em></em>Measured data were fit to theoretical models using the Lorentz and generalized oscillator models. Data from seven differen

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27

Elg, Christoffersson Kristina. "Dissolving pulp : Multivariate Characterisation and Analysis of Reactivity and Spectroscopic Properties." Doctoral thesis, Umeå University, Chemistry, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-393.

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<p>Various chemical properties can be used to characterise dissolving pulp. The quality of the pulp must be carefully controlled to ensure that it meets the requirements for its intended use and the further processes to be applied. If it is to be used to prepare viscose, or other cellulose derivatives, the key prop-erties of the pulp are its accessibility and reactivity. The studies described in this thesis investigated the potential utility of multivariate analysis of chemi-cal and spectral data for determining the properties of dissolving pulp. Dis-solving pulps produced by a two-stage sulfi

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28

Waechtler, Thomas, Bernd Gruska, Sven Zimmermann, Stefan E. Schulz, and Thomas Gessner. "Optical Properties of Sputtered Tantalum Nitride Films Determined by Spectroscopic Ellipsometry." Universitätsbibliothek Chemnitz, 2006. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200600325.

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Tantalum and tantalum nitride thin films are routinely applied as diffusion barriers in state-of-the-art metallization systems of microelectronic devices. In this work, such films were prepared by reactive magnetron sputtering on silicon and oxidized silicon substrates and studied by spectroscopic ellipsometry in the spectral range from 190 nm to 2.55 μm. The complex refractive index for thick films (75 to 380 nm) was modeled using a Lorentz-Drude approach. These models were applied to film stacks of 20 nm TaN / 20 nm Ta on unoxidized an

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29

McDougall, James. "Spectroscopic properties of rare earth ions in zirconium based fluoride glasses." Thesis, University of the West of Scotland, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261598.

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30

Cooper, Adam. "A theoretical study of spectroscopic properties of van der Waals trimers." Thesis, Durham University, 1992. http://etheses.dur.ac.uk/6126/.

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A method for performing calculations on the lower bound states of van der Waals trimers is developed, which models atom-atom-diatom trimers with basis functions in all five degrees of freedom. Spherical harmonic and distributed Gaussian functions and solutions of one-dimensional adiabatic Hamiltonians are used as basis functions. Arg was examined as a precursor system. No spectroscopy has been performed on Ara, nor is this currently feasible. For the systems considered, most experimental data exists for (^v)HCI = 0 Ar(_2)HCl so this is the main target of the work. Predictions are made for Ar(_

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31

Goodman, E. M. "Spectroscopic and theoretical studies on the hydrogen bonding properties of cytosine." Thesis, University of York, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379048.

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32

Charlwood, Frances Claire. "Ground state properties of Mn and Mo using laser spectroscopic methods." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/ground-state-properties-of-mn-and-mo-using-laser-spectroscopic-methods(a2cc81ce-2b0f-44a4-b926-b5091e84f9a9).html.

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An optical study of Mn and Mo isotopes has been performed in two contrasting regions of the nuclear chart. Collinear laser spectroscopic methods were employed using the Ion Guide Separator On-Line (IGISOL) at the University of Jyväskylä, Finland. Optical pumping in an ion-trap with the use of frequency quadrupled titanium sapphire lasers, greatly improved the efficiency of the spectroscopy performed.For the first time, the change in mean-square charge radius was determined for ground and isomeric states in 50-56Mn with a sharp shell closure seen across N = 28. Nuclear quadrupole moments in 50m

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33

Cranston, Laura Jessica. "Structural and functional studies of LH2 complexes having unusual spectroscopic properties." Thesis, University of Glasgow, 2017. http://theses.gla.ac.uk/8219/.

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The harvesting of light is an important, primary event in photosynthesis, allowing for the transfer of energy to the reaction centre. Purple photosynthetic bacteria use two types of antenna complexes (LH1, LH2) to enhance the efficiency of light harvesting and funnelling energy into the photosynthetic reaction centre. Marichromatium (Mcr). purpuratum is an example of a species that can synthesise antenna complexes that have an unusual absorption spectrum. This LH2 complex has a single strong absorption band at approximately 830nm, with a shoulder at 800nm, also known as the B800-B830 LH2 compl

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34

Haynes, John Stephen. "Spectroscopic and magnetic properties of pyridine and pyrazine complexes of divalent iron and copper." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25821.

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Magneto-structural correlations have been made for a number of pyridine and pyrazine complexes of iron(II) and copper(Il), involving anions of a range of coordinating abilities, for example, sulfonate, RS0₃⁻ (where R is CF₃, CH₃ or p-CH₃C₆H₄); halide, Cl⁻ Br⁻ or I⁻; pseudohalide, NCO⁻ or NCS⁻; perchlorate and hexafluoroarsenate. Structure was determined by infrared, electronic and Mössbauer spectroscopy and differential scanning calorimetry, and, in some instances, by single-crystal X-ray diffraction. Spectroscopic results were used to investigate the nature of both anion and neutral ligand co

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35

Haffenden, Gemma Louise. "First Principles Calculations of the Spectroscopic and Thermal Properties of Graphitic Materials." Thesis, University of Sussex, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499593.

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36

Wang, Hongjiang, and 王泓江. "Spectroscopic investigation of optical properties of GaN epilayers andInGaN/GaN quantum wells." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B29779911.

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37

Bakboord, Joan Vanessa. "Synthesis and spectroscopic studies of novel phthalocyanines-toward new electronic absorption properties." Thesis, University of East Anglia, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323290.

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38

Hill, C. A. S. "The synthesis and studies of compounds with novel electronic and spectroscopic properties." Thesis, University of the West of England, Bristol, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305721.

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39

Peggs, Derek William. "Spectroscopic studies of the opto-electronic properties of quantum wells and superlattices." Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364305.

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40

Masino, Laura. "Spectroscopic studies of the conformational stability and ligand binding properties of calmodulin." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325553.

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41

Sandoval, Cuesta Gonzalo. "Spectroscopic and photocatalytic properties of ultrafine titanium dioxide pigments for photocleanable surfaces." Thesis, Manchester Metropolitan University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399660.

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42

Ghazal, Davide. "Experimental and computational studies of spectroscopic properties of 2-aminopurine and pyrrolocytosine." Thesis, Birkbeck (University of London), 2014. http://bbktheses.da.ulcc.ac.uk/89/.

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Pyrrolocytosine (Pc) and 2-aminopurine (2-Ap) are modified fluorescent nucleobases that can respectively replace the non-fluorescent natural nucleobases cytosine (C) and adenine (A) and therefore, can be used to probe the structure and dynamics of nucleic acids. Changes in fluorescence emission intensity of these modified bases as a function of polarity (general solvent effect) were measured. Lippert plots were generated and the difference between the excitation and emission maxima (Stokes shift) wavelengths of Pc and 2-Ap in water and acetonitrile mixtures indicate that the measured Stokes sh

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43

Mwanza, Daniel. "Tetra 4-(propargyloxy)phenoxy phthalocyanines: synthesis, spectroscopic, nonlinear optical and electrocatalytic properties." Thesis, Rhodes University, 2017. http://hdl.handle.net/10962/65144.

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44

Caron, Fabien. "Bridging the gap between spectroscopic and catalytic properties of supported CoMoS catalysts." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEN053/document.

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Les catalyseurs impliqués dans le procédé d’hydrodésulfurisation des essences (HDS) reposent sur l’utilisation principale d’une phase active MoS2 promue par du cobalt et supportée sur alumine. L’enjeu de cette thèse est de faire le lien entre les propriétés spécifiques propres du catalyseur et ses performances catalytiques. Trois paramètres ont été étudiés afin de tenter de comprendre l’origine de leurs propriétés catalytiques : la nature du support (γ-Al2O3, δθ-Al2O3, SiO2), la densité surfacique en molybdène et le ratio cobalt/molybdène. L’activité HDS et la sélectivité ont été mesurées en r

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45

Hendrickson, Kym M. "The use and spectroscopic properties of zinquin, a zinc(II) specific fluorophore." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phh498.pdf.

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46

Mihai, Vlaicu Aurel. "X-ray spectroscopic research of [74]W L emission spectra and satellites." 京都大学 (Kyoto University), 2000. http://hdl.handle.net/2433/181100.

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47

Singaraju, Aditya Bharadwaj. "Crystallographic and spectroscopic assessment of pharmaceutical material mechanics." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6643.

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Despite the advent of alternative dosage forms, solid dosage forms constitute a major proportion of dosage forms not only on the market, but also in many pharmaceutical companies’ pipelines. This is because of their superior stability and ease of manufacturing relative to other dosage forms. Although solid dosage forms have been the topic of discussion for decades, the process of compaction of these dosage forms is considered an art rather than science because of the empiricism that exists in this area. With the introduction of Quality by Design (QbD), it is imperative that the drug developmen

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48

Fornaro, Teresa. "Spectroscopic Studies of Molecular Systems Relevant in Astrobiology." Doctoral thesis, Scuola Normale Superiore, 2016. http://hdl.handle.net/11384/86210.

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In the Astrobiology context, the study of the physico-chemical interactions involving “building blocks of life” in plausible prebiotic and space-like conditions is fundamental to shed light on the processes that led to emergence of life on Earth as well as to molecular chemical evolution in space. In this PhD Thesis, such issues have been addressed both experimentally and computationally by employing vibrational spectroscopy, which has shown to be an eﬀective tool to investigate the variety of intermolecular interactions that play a key role in self-assembling mechanisms of nucleic acid compon

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49

Acikgoz, Muhammed. "Temperature Dependence Of The Spectroscopic And Structural Properties Of Tlgas2 And Tlins2 Crystals." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605222/index.pdf.

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The results of photoluminescence (PL) spectra of TlGaS2 single crystal were reported in the 500-1400 nm wavelength and in the 15-115 K temperature range. Three broad PL bands with an asymmetric Gaussian lineshapes were observed to be centered at 568 nm (A-band), 718 nm (B-band) and 1102 nm (C-band). The shift of the emission band peak energy as well as the change of the half-width of the emission band with temperature and excitation laser intensity were also studied. We analyzed the observed results using the configurational coordinate (CC) model. The powder diffraction patterns of TlInS2 and

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50

Annam, Ramyasree. "Study of Mechanical Properties of PVA Fiber-Reinforced Concrete With Raman Spectroscopic Analysis." TopSCHOLAR®, 2015. http://digitalcommons.wku.edu/theses/1460.

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The brittleness of concrete has always been a safety and economic issue of great concern. The low tensile strength of concrete is the cause of its intrinsic brittle nature. This is critical considering the amount of concrete used for the construction of highways, buildings, and other facilities. The mechanical properties of concrete must be improved to provide upgraded construction. Crack resistant and durable concrete has always been a major goal for engineers. Many approaches have been tried to make concrete a better construction material. Fiber reinforcement is an approach which has been sh

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