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Sökning: WFRF:(Ottosson Mikael)

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21.
  • Dahlberg, Anders, et al. (författare)
  • Svampar Fungi
  • 2020
  • Ingår i: Rödlistade arter i Sverige 2020. - 9789187853548 ; , s. 67-88
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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22.
  • Ekström, Karin M., et al. (författare)
  • Consumer Behavior : classical and contemporary perspectives
  • 2017. - 1
  • Bok (övrigt vetenskapligt/konstnärligt)abstract
    • Consumer Behavior: Classical and Contemporary Perspectives provides a basic understanding of the subject of consumer behavior. A better understanding in terms of why and how people consume is particularly relevant in today’s society since consumption has become an increasingly important part of people’s lives.This book differs from most previous textbooks by describing the subject of consumer behavior based on two comprehensive theoretical fields: theories concerning consumer psychology and decision-making, and theories concerning consumer culture and practices. These two perspectives complement one another and contribute to a better understanding of the complexity of consumption. Furthermore, the book has a sustainability perspective. The impact of consumption on the environment is important to highlight, not least with regard to future generations. The book also has a consumer perspective in that the consumer is not seen as a passive recipient of offers, but rather as an active actor who must be given the opportunity to make his or her voice heard. A better understanding of consumers’ different living conditions and the situations they encounter will give companies and other organizations a better chance to reach out to consumers and meet their needs.Consumer Behavior is also available in Swedish, published by Studentlitteratur.
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23.
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24.
  • Fagerberg, Linn, et al. (författare)
  • Analysis of the human tissue-specific expression by genome-wide integration of transcriptomics and antibody-based proteomics
  • 2014
  • Ingår i: Molecular & Cellular Proteomics. - 1535-9476 .- 1535-9484. ; 13:2, s. 397-406
  • Tidskriftsartikel (refereegranskat)abstract
    • Global classification of the human proteins with regards to spatial expression patterns across organs and tissues is important for studies of human biology and disease. Here, we used a quantitative transcriptomics analysis (RNA-Seq) to classify the tissue-specific expression of genes across a representative set of all major human organs and tissues and combined this analysis with antibody- based profiling of the same tissues. To present the data, we launch a new version of the Human Protein Atlas that integrates RNA and protein expression data corresponding to 80% of the human protein-coding genes with access to the primary data for both the RNA and the protein analysis on an individual gene level. We present a classification of all human protein-coding genes with regards to tissue-specificity and spatial expression pattern. The integrative human expression map can be used as a starting point to explore the molecular constituents of the human body.
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25.
  • Falahati, Sorour, 1971, et al. (författare)
  • EU FP6 IST-2003-507581 WINNER, D2.4 Assessment of adaptive transmission technologies, Feb 2005
  • 2005
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • This document contains a first assessment of adaptive transmission schemes and how these fitto the different WINNER scenarios. It focuses on an adaptation due to the channel properties that mayvary both in time and frequency or, with respect to the selected antennas, in an OFDM-based air interface.Besides the evaluation by analysis, link simulation and multilink simulation, first detailed designs arepresented of adaptive transmission feedback systems for the WINNER FDD and TDD physical layermodes.
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26.
  • Fallberg, Anna, et al. (författare)
  • A NEXAFS and XPS study of oxygen doped Cu3N
  • 2024
  • Ingår i: Journal of Physics D. - : IOP Publishing Ltd. - 0022-3727 .- 1361-6463.
  • Tidskriftsartikel (refereegranskat)abstract
    • Thin films of pure and oxygen doped Cu3N, deposited by Chemical Vapour Deposition, have been studied with the NEXAFS technique both in the FLY and TEY mode and compared with XPS results.  Cu, CuO and Cu2O have been used as reference samples in the investigation for detection of surface oxidation and contaminants. The aim has been to investigate how and if the chemical environment changes around Cu, N and O upon incorporation of oxygen in the Cu3N lattice. The recorded NEXAFS spectra are discussed in terms of valence electrons, crystal structure and local bonding environment. It was found that basically two oxygen absorption sites are possible in the crystal structure, (½, ½, 0) and (¼, ¼, ¼), and that the oxygen distribution between the two sites is probably given by the oxygen concentration.
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27.
  • Fallberg, Anna, 1980- (författare)
  • Chemical Vapour Deposition of Undoped and Oxygen Doped Copper (I) Nitride
  • 2010
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • In science and technology there is a steadily increased demand of new materials and new materials production processes since they create new application areas as well as improved production technology and economy. This thesis includes development and studies of a chemical vapour deposition (CVD) process for growth of thin films of the metastable material copper nitride, Cu3N, which is a semiconductor and decomposes at around 300 oC. The combination of these properties opens for a variety of applications ranging from solar cells to sensor and information technology. The CVD process developed is based on a metal-organic compound copper hexafluoroacetylacetonate, Cu(hfac)2 , ammonia and water and was working at about 300 oC and  5 Torr. It was found that a small amount of water in the vapour increased the growth rate considerably and that the phase content, film texture, chemical composition and morphology were strongly dependent on the deposition conditions. In-situ oxygen doping during the CVD of Cu3N to an amount of 9 atomic % could also be accomplished by increasing the water concentration in the vapour. Oxygen doping increases the band gap of the material as well as the electrical resistivity and changes the stability. The crystal structure of Cu3N is very open and contains several sites which can be used for doping. Different spectroscopic techniques like X-ray photoelectron spectroscopy, Raman spectroscopy and near edge X-ray absorption fine structure spectroscopy were used to identify the oxygen doping site(s) in Cu3N. Besides the properties, the oxygen doping also affected the morphology and texture of the films. By combining thin layers of different materials several properties can be optimized at the same time. It has been demonstrated in this thesis that multilayers, composed of alternating Cu3N and Cu2O layers, i.e. a metastable and a stable material, could be grown by CVD technique. However, the stacking sequence affected the texture, morphology and chemical composition. The interfaces between the different layers were sharp and no signs of decomposition of the initially deposited metastable Cu3N layer could be detected.
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28.
  • Fallberg, Anna, et al. (författare)
  • CVD of Copper(I) Nitride
  • 2009
  • Ingår i: Chemical Vapor Deposition. - Weinheim : WILEY-VCH Verlag GmbH & Co. - 0948-1907 .- 1521-3862. ; 15:10-12, s. 300-305
  • Tidskriftsartikel (refereegranskat)abstract
    • Copper(I) nitride (Cu3N) is deposited by CVD using copper(II) hexafluoroacetylacetonate (Cu(hfaC)(2)), ammonia, and water as precursors. The influences of process parameters on growth rate, phase content, chemical composition and morphology are studied. The introduction of water is found to increase film growth rate on the SiO2 substrate. Films are deposited in the temperature range 250-550 degrees C. Single-phase Cu3N is obtained up to 400 degrees C. A phase mixture Of Cu3N and Cu is obtained at 425 degrees C, while a temperature of 550 degrees C and above yields single-phase Cu. X-ray diffraction (XRD) confirms that Cu3N has the cubic, anti-ReO3-type structure; with a cell parameter in the range 3.805-3.816 angstrom. X-ray photoelectron spectroscopy (XPS) verifies the Cu3N stoichiometry. The films are free from impurities (below the detection limit of 1%) at a large excess of ammonia. Scanning electron microscopy (SEM) shows facetted grains, with the faces becoming more well-defined at higher temperatures.
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29.
  • Fallberg, Anna, et al. (författare)
  • Deposition and characterisation of Cu2O/Cu3N multilayers
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • Multilayers of Cu2O and Cu3N were successfully deposited by the CVD technique on SiO2 substrates. For deposition of the Cu3N layers Cu(hfac)2 and NH3 and for the Cu2O layers Cu(hfac)2 and H2O were used as precursors, respectively. The multilayers were deposited at 300 °C with different stacking sequences, starting with either the oxide or the nitride. In order to analyze and determine phase, texture, chemical composition and microstructure, the films were characterized by XRD, XPS and SEM. Results from GI-XRD measurements at different incidence angles show distinct Cu2O and Cu3N layers. No contaminations in the form of carbon or fluorine originating from the MO precursor were found by XPS technique. The XPS results also reveal that the Cu3N phase contained oxygen (for the Cu2O on top of Cu3N). The oxygen is expected to originate from exposure of the Cu3N surface to water vapour upon starting the Cu2O deposition. The cross section microstructure was studied by SEM. It was found that columnar growth occurred for both Cu2O/Cu3N and Cu3N/Cu2O/Cu3N films.
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30.
  • Fallberg, Anna, et al. (författare)
  • Phase stability and oxygen doping in the Cu-N-O system
  • 2010
  • Ingår i: Journal of Crystal Growth. - North Holland : Elsevier. - 0022-0248 .- 1873-5002. ; 312:10, s. 1779-1784
  • Tidskriftsartikel (refereegranskat)abstract
    • A growth stability diagram for the system Cu-N-O has been determined in the temperature range 250-500°C for a thermally activated CVD process, based on copper (II) hexafluoroacetylacetonate (Cu(hfac)2), NH3 and H2O. Without any addition of water only Cu3N was obtained. Addition of water introduces oxygen into the Cu3N structure to a maximum amount of 9 atomic % at a water/nitrogen molar ratio of 0.36 at 325 °C. Above this molar ratio Cu2O starts to deposit in addition to an oxygen doped Cu3N phase. Only Cu2O is deposited at a large excess of water. XPS and Raman spectroscopy indicated that the additional oxygen in the doped Cu3N structure occupies an interstitial position with a chemical environment similar to oxygen in Cu2O. The oxygen doping of the Cu3N phase did not influence the lattice parameter which was close to the bulk parameter of 3.814 Å. The film morphology varied markedly with both deposition temperature and water concentration in the vapour during deposition.  Increasing the water concentration results in less faceted and textured films with smoother and more sphere like grains. The resistivity of the Cu3N films increased with increased oxygen content of the film and varied between 10-100 Ωcm (0 to 9 atomic% O). The optical band gap increased from 1.25 to 1.45 eV as the oxygen content increased (0 to 9 atomic %).
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