Browsing B6 – LU institūti un aģentūras / Institutes and agencies of the UL by Title
Now showing items 1-20 of 1010
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18th International Young Scientist Conference "Developments in Optics and Communications 2022", April 21-22, 2022 : DOC 2022 Abstract Book
(University of Latvia, Institute of Atomic Physics and Spectroscopy, 2022) -
1D polinomiālu funkciju precīzi interpolējoša pikseļa forma
(2013-01-23) -
2006. gada publiskais pārskats
(LU Latvijas Vēstures institūts, 2007) -
2008. gada publiskais pārskats
(LU Latvijas Vēstures institūts, 2009) -
2010. gada publiskais pārskats
(LU Latvijas Vēstures institūts, 2011) -
20th-century Baltic drama: comparative paradigms
(University of Tartu Press, 2014) -
2d slab models of nanotubes based on tetragonal tio2 structures: Validation over a diameter range
(Multidisciplinary Digital Publishing Institute (MDPI), 2021)One-dimensional nanomaterials receive much attention thanks to their advantageous properties compared to simple, bulk materials. A particular application of 1D nanomaterials is pho-tocatalytic hydrogen generation from ... -
2D slab models of TiO2 nanotubes for simulation of water adsorption: Validation over a diameter range
(Elsevier B.V., 2020)Currently a lot of attention is paid to 1D nanomaterials due to their advantages in comparison to bulk materials. They offer broad possibilities of application, including photocatalytic water splitting. Simulations of water ... -
4.9% Efficient Sb2S3 Solar Cells from Semitransparent Absorbers with Fluorene-Based Thiophene-Terminated Hole Conductors
(American Chemical Society, 2023)Fluorene-based hole transport materials (HTMs) with terminating thiophene units are explored, for the first time, for antimony sulfide (Sb2S3) solar cells. These HTMs possess largely simplified synthesis processes and high ... -
The 4th international oral history conference «Generation, Migration and Memory: Narrative and its Transformations»: Conference programm and abstracts
(LU Filozofijas un socioloģijas institūts, 2020-11)The 4th international oral history conference «Generation, Migration and Memory: Narrative and its Transformations», November 12-13, 2020. University of Latvia, Institute of Philosophy and Sociology. Conference programm ... -
Ab initio calculations of CaZrO3 (011) surfaces: systematic trends in polar (011) surface calculations of ABO3 perovskites
(Springer, 2020)By means of the CRYSTAL computer program package, first-principles calculations of polar ZrO-, Ca- and O-terminated CaZrO3 (011) surfaces were performed. Our calculation results for polar CaZrO3 (011) surfaces are compared ... -
AB Initio Calculations of CU N @Graphene (0001) Nanostructures for Electrocatalytic Applications
(Sciendo, 2018)Substitution of fossil-based chemical processes by the combination of electrochemical reactions driven by sources of renewable energy and parallel use of H 2 O and CO 2 to produce carbon and hydrogen, respectively, can ... -
Ab initio calculations of Li2(Co, Mn)O8 solid solutions for rechargeable batteries
(World Scientific Publishing Co. Pte Ltd, 2019)Current commercially available rechargeable Li-ion batteries, for example LiCoO2, are working mostly in the 4 V regime. One often suggested possibility to improve the effectivity of Li-ion batteries are the creation of the ... -
Ab initio calculations of pure and Co+2-doped MgF2 crystals
(Elsevier B.V., 2020)Ab initio calculations of the atomic, electronic and vibrational structure of a pure and Co+2 doped MgF2 crystals were performed and discussed. We demonstrate that Co+2 (3d7) ions substituting for Mg is in the high spin ... -
Ab Initio Computations of O and AO as well as ReO2, WO2 and BO2-Terminated ReO3, WO3, BaTiO3, SrTiO3 and BaZrO3 (001) Surfaces
(MDPI, 2022)We present and discuss the results of surface relaxation and rumpling computations for ReO3, WO3, SrTiO3, BaTiO3 and BaZrO3 (001) surfaces employing a hybrid B3LYP or B3PW description of exchange and correlation. In ... -
Ab Initio Modeling of CuGa1−xInxS2, CuGaS2(1−x)Se2x and Ag1−xCuxGaS2 Chalcopyrite Solid Solutions for Photovoltaic Applications
(MDPI, 2023)Chalcopyrites are ternary semiconductor compounds with successful applications in photovoltaics. Certain chalcopyrites are well researched, yet others remain understudied despite showing promise. In this study, we use ab ... -
Ab Initio Modeling of Y and O Solute Atom Interaction in Small Clusters within the bcc Iron Lattice
(Wiley-VCH GmbH, 2018)Small yttrium and oxygen complexes in the body‐centred cubic (bcc) iron matrix are modeled by performing density functional theory (DFT) calculations. The interaction between Y and O in isolated molecule, rock‐salt crystal ... -
Ab initio molecular dynamics simulations of negative thermal expansion in ScF3: The effect of the supercell size
(Elsevier B.V., 2020)Scandium fluoride (ScF3) belongs to a class of negative thermal expansion (NTE) materials. It shows a strong lattice contraction up to about 1000 K switching to expansion at higher temperatures. Here the NTE effect in ScF3 ... -
Ab initio simulation of (Ba,Sr)TiO3 and (Ba,Ca)TiO3 perovskite solid solutions
(Elsevier B.V., 2019)The results of ab initio (first-principles) computations of structural, elastic and piezoelectric properties of Ba(1−x)SrxTiO3 (BSTO) and Ba(1−x)CaxTiO3 (BCTO) perovskite solid solutions are presented, discussed and compared. ... -
Ab initio simulations on charged interstitial oxygen migration in corundum
(Elsevier B.V., 2018)We have calculated possible migration trajectories for single-charged interstitial Oi− anion using large-scale hybrid density functional theory within linear combination of atomic orbitals approach to defective α-Al2O3 ...