Annual Report 2012 - Latvijas Universitātes Cietvielu fizikas institūts

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DEPARTMENT OF SEMICONDUCTOR MATERIALS Head of Department Dr.phys. A.Lusis Research areas and expertise • Electrophysics and electrochemistry of specific semiconductor materials, mixed conductors, ion conductors (transition metal oxides, bronzes, metal hydrates, solid electrolytes, nanostructured and porous materials, composites etc.) • Material preparation methods: thin and thick film technologies, sol-gel process, leaching, sonochemical processes, pyrolysis spray coating, electrochemical deposition • Material characterization by spectroscopic methods (Raman scattering, Furrier IR, optical and Xray absorption, EXAFS), electrical and electrochemical impedances, AFM, TGA/DTA, etc • Solid state ionics: - electro-, photo-, thermo-, chemo- or gaso-chromic phenomena in transition metal oxides - structural changes due to ion intercalation - lattice dynamics and structural and electronic phase transitions - solid state reactions at interfaces electrode – solid electrolyte - gases and ions sensing phenomena and detection technologies • Functional coatings and multi layer electrochemical systems • Hydrogen absorption phenomena in metals, semiconductors and insulators • Development of hydrogen generation equipment and new nano structured materials for hydrogen storage • New measurement technologies and instruments with artificial intellect (encl., eNose) • Development methods and techniques for quality and reliability testing for lead – free joints of PCB • Hydrogen technologies (production, storage, transportation, application); renewable energy technologies (solar, wind, static electricity, water, microbial fuel cells); • Development of cathode materials for Lithium thin film batteries; • Gas sensors and sensor arrays; odour removal with adsorbent and low temperature plasma discharge technologies. • Tritium analysis Research Topics • Ion transfer in solids, over two phase interfaces and composites as well as structural changes due to ion intercalation, lattice dynamics and structural and electronic phase transitions. 120
• Ion transfer problems related to electro-, photo-, chemo-, thermo-chromic phenomena in transition metal oxides as well as to solid state reactions at interfaces electrode – solid electrolyte. • Application of electrical and electrochemical impedances for characterization of ionic systems, nanostructured and porous materials, composites. • Development of nanostructuring methods for functionalization of plate glass and fiber glass surfaces as well investigation influence of ultrasound on leaching processes, pores structure and ion exchange of glass fibers. • Application of thermal analyses (TGA/DTA) and sorptometry for investigation of porous materials and absorbing capacity of functional species. • Investigation of stability of materials for electrochemical multi layer systems and electrochromic coatings as well as intergrain activity in solid electrolyte layers based on polymer composites. • Development methods and techniques for functilization • Thin films preparation by magnetron sputtering techniques. • Development methods and techniques for quality and reliability testing for lead-free joints of printed circuit boards. • Servicing of common research facilities: thin film vacuum coating machines, TGA/DTA equipment and powerful ultrasound bath-reactor. • Membranes and membrane/electrode systems for fuel cells and gas filtration. • The technologies for hydrogen production, storage, transportation, applications in transport and stationary applications; for energy storage and electricity/heat generation; synthesis and research of new materials for hydrogen technologies (electrodes in electrolysers and microbial fuel cells, structured nanomaterials for photoelectrolysis, hydrogen storage media, polymer membranes and membraneelectrode assemblies for fuel cells); • Lithium intercalation materials and their application for thin film rechargeable battery; the technologies for electricity generation from renewables (solar, wind, static electricity, water, algae and microorganisms); • Gas sensors and sensor arrays for gas and odour monitoring; odour removal with adsorbents and corona discharge technologies; • X-ray Absorption Spectroscopy of functional materials and development of advanced EXAFS data analysis methodologies, based on Molecular Dynamics and Reverse Monte Carlo methods. • Confocal laser spectromicroscopy. • The use of high performance computing for functional materials simulations. • The magnetic ions exchange interaction in the antiferromagnetic oxides MeO-MgO solid solutions were studied using of optical absorption, luminescence, EPR and Raman spectroscopies: exchange interaction between radiation defects and transition metals ions in the dielectric crystals doped with the transition metals ions • EPR , FTIR, Raman and optical spectroscopies study of human blood after irradiation • Investigations of tritium release properties of neutron multiplier beryllium materials for fusion reactor development. Analysis of tritium distribution in plasma-facing carbon-based components. 121
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Institute of Solid State Physics Un
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CONTENTS Introduction 4 Department
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ORGANIZATIONAL STUCTURE OF THE ISSP
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The annual report summarizes the re
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The main source for international f
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lector at the Faculty of Physics an
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the samples having different phase
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LABORATORY OF MAGNETIC RESONANCE SP
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Scientific publications 1. U. Rogul
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Main investigations and results ALU
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Lectures on Conferences 28 th LU Sc
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Main Results LASER CRYSTALLIZATION
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CONTROLLED MANIPULATION AND MECHANI
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DEPARTMENT OF FERROELECTRICS Head o
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Belorussia 1. Institute of solid st
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Density and dielectric properties f
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CONCENTRATION AND THERMAL PHASE TRA
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Latvia; SSPA ”Scientific-Practica
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• Δ T εmax : Mn>Co>Fe>Cu~Ni •
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Li x Na 1-x Ta y Nb 1-y O 3 Solid S
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34. А.И. Бурханов, И.Е.
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16. Š. Svirskas, M. Ivanov, Š. Ba
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45. С.Н. Каллаев, А.Р.
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LABORATORY OF VISUAL PERCEPTION Hea
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in terms of colour coordinate dispe
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4. R.Truksa, S.Fomins, M.Ozolins, "
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Scientific visits abroad 1. Dr. hab
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experimental data. We focused on th
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GB1 with oxygen vacancy revealed th
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Fig. 4. The thermodynamic stability
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a supercell model was used, and the
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a) b) l [110] d [110] (001) Fig. 9.
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Drain CNT Source Drain GNR Source 5
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The oxygen incorporation energy for
Page 69 and 70: such as high thermal stability, ver
Page 71 and 72: STATISTICAL ANALYSIS AND CELLULAR A
Page 73 and 74: REGIONS OF AZIMUTHAL INSTABILITY IN
Page 75 and 76: 25. A. Gopejenko, Yu.F. Zhukovskii,
Page 77 and 78: 15. S. Piskunov and E. Spohr, "SrTi
Page 79 and 80: 43. P. Merzlakov, G. Zvejnieks, V.N
Page 81 and 82: XII. Annual Monitory Meeting of Eur
Page 83 and 84: 91. L. Shirmane, A.I. Popov, V. Pan
Page 85 and 86: 115. A.I. Popov, J. Zimmermann, V.
Page 87 and 88: Estonia Institute of Physics, Tartu
Page 89 and 90: 5. Grigorjeva L., Jankoviča D., Sm
Page 91 and 92: LABORATORY OF AMORPHOUS MATERIALS S
Page 93 and 94: Main results ABSORPTION AND LUMINES
Page 95 and 96: LUMINESCENCE OF FUSED AND UNFUSED B
Page 97 and 98: enables sensitive and selective det
Page 99 and 100: LABORATORY OF OPTICAL RECORDING Hea
Page 101 and 102: HOLOGRAPHIC LITHOGRAPHY IN AMORPHOU
Page 103 and 104: 5. U.Gertners, J.Teteris, The impac
Page 105 and 106: 24. J.Aleksejeva, J.Teteris, A.Tokm
Page 107 and 108: Israel Technion, Haifa (Dr.S.Stolya
Page 109 and 110: 3. A. Rusakova, J. Maniks, K. Schwa
Page 111 and 112: • Investigation of energetic stru
Page 113 and 114: Scheme 2 Synthesis of indane-1,3-di
Page 115 and 116: The synthesized compounds ZWK-1, DW
Page 117 and 118: 7. A. Vembris, K. Pudzs, I. Muzikan
Page 119: 20. A. Vembris, K. Pudzs, I. Muzika
Page 123 and 124: 13. SIA „EMU PRIM”, 14. JSC „
Page 125 and 126: Main results Laboratory of Solid St
Page 127 and 128: Flax and Hemp Fiber Functionalizati
Page 129 and 130: CHARACTERIZATION OF LiFePO4/C COMPO
Page 131 and 132: Fig.1. Upper panel: 4 × 4 ×4 supe
Page 133 and 134: Fig.1. Left panel: Schematic view o
Page 135 and 136: Titania with anatase structure is i
Page 137 and 138: RESEARCH OF CATHODE MATERIALS FOR L
Page 139 and 140: 17. T Dizhbite, J Ponomarenko, A An
Page 141 and 142: 6. J. Kleperis, B. Sloka, J. Dimant
Page 143 and 144: 33. P. Lesnicenoks, A. Sivars, L. G
Page 145 and 146: France 1. Institute Laue-Langevin,
Page 147 and 148: different neutron orbits (11/2[615]
Page 149 and 150: LABORATORY OF ELECTRONIC ENGINEERIN
Page 151 and 152: 2. For JSC Augstsprieguma tīkls an
Page 153 and 154: 4. By orders of several organizatio
Page 155: Partners: Fonons Ltd, Riga Technica
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Annual Report 2012 - Latvijas Universitātes Cietvielu fizikas institūts

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