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  • Spektrografiske bestemmelser av atmosfærens osoninnhold over Tromsø 
    Tønsberg, Einar (Master thesis / Hovedoppgave, 1937)
  • Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo 
    Universitetet i Oslo, Det matematisk-naturvitenskapelige fakultet (Series / Serietittel, 2006)
  • Vacancy clustering and acceptor activation in nitrogen-implanted ZnO 
    Børseth, Thomas J. Moe; Tuomisto, F; Christensen, Jens S.; Monakhov, Edouard; Svensson, Bengt Gunnar; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2008)
    The role of vacancy clustering and acceptor activation on resistivity evolution in N ion-implanted n-type hydrothermally grown bulk ZnO has been investigated by positron annihilation spectroscopy, resistivity measurements, ...
  • Stabilization of Ge-rich defect complexes originating from E centers in Si1-xGex:P 
    Kilpelainen, S; Kuitunen, K; Tuomisto, F; Slotte, J; Radamson, H.H.; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)
    Thermal evolution of vacancy complexes was studied in P-doped ([P]=1018 cm−3) proton irradiated Si1−xGex with Ge contents of 10%, 20%, and 30% in the range of 250–350 °C using positron annihilation spectroscopy. The radiation ...
  • Vacancy defect and defect cluster energetics in ion-implanted ZnO 
    Dong, Yufeng; Tuomisto, F; Svensson, Bengt Gunnar; Kuznetsov, Andrej; Brillson, Leonard J. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)
    We have used depth-resolved cathodoluminescence, positron annihilation, and surface photovoltage spectroscopies to determine the energy levels of Zn vacancies and vacancy clusters in bulk ZnO crystals. Doppler broadening-measured ...
  • Changing vacancy balance in ZnO by tuning synthesis between zinc/oxygen lean conditions 
    Venkatachalapathy, Vishnukanthan; Galeckas, Augustinas; Zubiaga, Asier; Tuomisto, Filip; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)
    The nature of intrinsic defects in ZnO films grown by metal organic vapor phase epitaxy was studied by positron annihilation and photoluminescence spectroscopy techniques. The supply of Zn and O during the film synthesis ...
  • Understanding phase separation in ZnCdO by a combination of structural and optical analysis 
    Venkatachalapathy, Vishnukanthan; Galeckas, Augustinas; Trunk, Mareike; Zhang, Tianchong; Azarov, Alexander; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    A phenomenon of wurtzite (w), zincblende (zb), and rock-salt (rs) phase separation was investigated in ZnCdO films having Cd contents in the range of 0%–60% settling a discussion on the phase stability issues in ZnCdO. ...
  • H passivation of Li on Zn-site in ZnO: Positron annihilation spectroscopy and secondary ion mass spectrometry 
    Johansen, Klaus Magnus H; Zubiaga, Asier; Tuomisto, Filip; Monakhov, Edouard; Kuznetsov, Andrej; Svensson, Bengt Gunnar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    The interaction of hydrogen (H) with lithium (Li) and zinc vacancies (VZn) in hydrothermally grown n-type zinc oxide (ZnO) has been investigated by positron annihilation spectroscopy (PAS) and secondary ion mass spectrometry. ...
  • Thermally induced surface instability in ion-implanted MgxZn1−xO films 
    Azarov, Alexander; Hallén, Anders; Du, Xiaolong; Liu, Z. L.; Svensson, Bengt Gunnar; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    Thermal stability of originally single crystalline wurtzite MgxZn1−xO (x ⩽ 0.3) films implanted at room temperature with 166Er ions is studied by a combination of Rutherford backscattering spectrometry, time-of-flight ...
  • Surface/strain energy balance controlling preferred orientation in CdZnO films 
    Zhang, Tianchong; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    Single-phase rock-salt CdZnO films were synthesized on r-plane sapphire substrates by metal–organic chemical vapor deposition. Evolutions in growth orientations were investigated in these films as a function of Zn content ...
  • Roles of Trm9-and ALKBH8-like proteins in the formation of modified wobble uridines in Arabidopsis tRNA 
    Leihne, VIbeke; Kirpekar, F; Vågbø, Cathrine Broberg; Van den Born, Erwin; Krokan, Hans Einar; Grini, Paul Eivind; Meza, Trine Johansen; Falnes, Pål (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    Uridine at the wobble position of tRNA is usually modified, and modification is required for accurate and efficient protein translation. In eukaryotes, wobble uridines are modified into 5-methoxycarbonylmethyluridine (mcm ...
  • ALKBH8-mediated formation of a novel diastereomeric pair of wobble nucleosides in mammalian tRNA 
    Van den Born, Erwin; Vågbø, Cathrine Broberg; Songe-Møller, Lene; Leihne, VIbeke; Lien, Guro Flor; Leszczynska, G; Malkiewicz, A; Krokan, Hans Einar; Kirpekar, F; Klungland, Arne; Falnes, Pål (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
  • Genome-Wide Transcript Profiling of Endosperm without Paternal Contribution Identifies Parent-of-Origin-Dependent Regulation of AGAMOUS-LIKE36 
    Shirzadi, Reza; Andersen, Ellen Dehnes; Bjerkan, Katrine; Gloeckle, Barbara M; Heese, Maren; Ungru, Alexander; Winge, Per; Koncz, C; Aalen, Reidunn B.; Schnittger, Arp; Grini, Paul Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    Seed development in angiosperms is dependent on the interplay among different transcriptional programs operating in the embryo, the endosperm, and the maternally-derived seed coat. In angiosperms, the embryo and the endosperm ...
  • The DNA dioxygenase ALKBH2 protects Arabidopsis thaliana against methylation damage 
    Meza, Trine Johansen; Moen, Marivi; Vågbø, Cathrine Broberg; Krokan, Hans Einar; Klungland, Arne; Grini, Paul Eivind; Falnes, Pål (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    The Escherichia coli AlkB protein (EcAlkB) is a DNA repair enzyme which reverses methylation damage such as 1-methyladenine (1-meA) and 3-methylcytosine (3-meC). The mammalian AlkB homologues ALKBH2 and ALKBH3 display ...
  • Ge redistribution in SiO2/SiGe structures under thermal oxidation: Dynamics and predictions 
    Long, Ethan Schuyler; Azarov, Alexander; Kløw, Frode; Galeckas, Augustinas; Kuznetsov, Andrej; Diplas, Spyridon (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    Several fundamental aspects of the oxidation-induced redistribution of Ge in thin films of SiGe are studied. This includes the incorporation of Ge into the oxide and the formation of what is alternatively referred to as ...
  • Oxidation-enhanced annealing of implantation-induced Z(1/2) centers in 4H-SiC: Reaction kinetics and modeling 
    Løvlie, Lars Sundnes; Svensson, Bengt Gunnar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    High-purity epitaxial layers of n-type 4H-SiC have been implanted with 4.3-MeV Si ions to a dose of 3 × 108 cm−2 and then subjected to dry isothermal oxidation at temperatures between 1050 and 1175 °C. Analysis of the ...
  • Zinc vacancy and oxygen interstitial in ZnO revealed by sequential annealing and electron irradiation 
    Knutsen, Knut Erik; Galeckas, Augustinas; Zubiaga, Asier; Tuomisto, Filip; Farlow, Gary C.; Svensson, Bengt Gunnar; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    By combining results from positron annihilation and photoluminescence spectroscopy with data from Hall effect measurements, the characteristic deep level emission centered at ∼1.75 eV and exhibiting an activation energy ...
  • Long range lateral migration of intrinsic point defects in n-type 4H-SiC 
    Løvlie, Lars Sundnes; Vines, Lasse; Svensson, Bengt Gunnar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    The lateral distributions of intrinsic point defects in n-type (0001) 4H-SiC have been investigated following room temperature irradiation with a focused beam of 10 keV protons. Laterally resolved deep level transient ...
  • The relative spatial positions of tryptophan and cationic residues in helical membrane-active peptides determines their cytotoxicity 
    Rekdal, Øystein; Haug, Bengt Erik; Kalaaji, manar; Hunter, Howard N.; Lindin, Inger; Israelsson, Ingrid; Solstad, Terese; Yang, Nannan; Brandl, Martin; Mantzilas, Dimitrios; Vogel, Hans J. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    The cytotoxic activity of 10 analogs of the idealized amphipathic helical 21-mer peptide (KAAKKAA)3, where three of the Ala residues at different positions have been replaced with Trp residues, has been investigated. The ...
  • On the interplay of point defects and Cd in non-polar ZnCdO films 
    Zubiaga, A.; Reurings, F.; Tuomisto, F; Plazaola, F.; Garcia, J.A.; Kuznetsov, Andrej; Egger, W.; Zuniga-Perez, J.; Munoz-Sanjose, V. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    Non-polar ZnCdO films, grown over m- and r-sapphire with a Cd concentration ranging between 0.8% and 5%, have been studied by means of slow positron annihilation spectroscopy (PAS) combined with chemical depth profiling ...