Browsing Kjemisk institutt by Author "Sønsteby, Henrik Hovde"

Now showing items 1-14 of 14

  • Atomic layer deposition of (K,Na)(Nb,Ta)O3 thin films 
    Sønsteby, Henrik Hovde; Nilsen, Ola; Fjellvåg, Helmer (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    Thin films of complex alkali oxides are frequently investigated due to the large range of electric effects that are found in this class of materials. Their piezo- and ferroelectric properties also place them as sustainable ...
  • Atomic Layer Deposition of GdCoO3 and Gd0.9Ca0.1CoO3 
    Duparc, Marion Jeanne Louise; Sønsteby, Henrik Hovde; Nilsen, Ola; Sjåstad, Anja Olafsen; Fjellvåg, Helmer (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Thin films of the catalytically interesting ternary and quaternary perovskites GdCoO3 and Gd0.9Ca0.1CoO3 are fabricated by atomic layer deposition using metal β-diketonates and ozone as precursors. The resulting thin films ...
  • Avoiding water reservoir effects in ALD of functional complex alkali oxides by using O3 as the oxygen source 
    Sønsteby, Henrik Hovde; Killi, Veronica Anne-Line Kathrine; Rykkje, Linn Margrethe; Bickford, Justin R.; Martin, Eric G.; Hoffman, Robert C.; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    A new ozone-based route for excellent control of complex alkali oxides by ALD.
  • Bioactive titaminates from molecular layer deposition 
    Momtazi, Leva; Sønsteby, Henrik Hovde; Dartt, DA; Eidet, Jon Roger; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Organic–inorganic hybrid materials are an emerging class of materials suitable for deposition by the molecular layer deposition (MLD) technique. Their toolbox is now expanded to include linkers of amino acids, which when ...
  • Biocompatible organic-inorganic hybrid materials based on nucleobases and titanium developed by molecular layer deposition 
    Momtazi, Leva; Sønsteby, Henrik Hovde; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    We have constructed thin films of organic–inorganic hybrid character by combining titanium tetra-isopropoxide (TTIP) and the nucleobases thymine, uracil or adenine using the molecular layer deposition (MLD) approach. Such ...
  • Chemical Uniformity in Ferroelectric KxNa1−xNbO3 Thin Films 
    Sønsteby, Henrik Hovde; Nilsen, Ola; Fjellvåg, Helmer (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Potassium sodium niobate (KNN) has long been considered a viable candidate for replacing lead‐based materials in piezo‐ and ferroelectric devices. The introduction of KNN on an industrial scale is highly awaited; however, ...
  • Consistency and reproducibility in atomic layer deposition 
    Sønsteby, Henrik Hovde; Yanguas-Gil, Angel; Elam, Jeffrey W. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Atomic layer deposition (ALD) is a thin film synthesis technique that can provide exquisite accuracy and precision in film thickness and composition even on complex, large area substrates. Based on self-limiting surface ...
  • Control of growth orientation in as-deposited epitaxial iron-rich nickel ferrite spinel 
    Bratvold, Jon E.; Sønsteby, Henrik Hovde; Nilsen, Ola; Fjellvåg, Helmer (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    The authors here report epitaxial growth of the ferrimagnet NixFe3–xO4 (NFO) by atomic layer deposition at low temperatures. Films grow epitaxially at a reactor temperature of 250 °C and require no further postannealing ...
  • Control of potassium tantalate niobate thin film crystal phase and orientation by atomic layer deposition 
    Bickford, Justin R; Sønsteby, Henrik Hovde; Strnad, Nicholas A; Zavalij, Peter Y; Hoffman, Robert C (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Due to its appreciable electro-optical properties, potassium tantalate niobate (KTN) thin films of high quality are expected to enhance the functionality of integrated photonics optical modulators. Unfortunately, they are ...
  • Effect of Subcycle Arrangement on Direct Epitaxy in ALD of LaNiO3 
    Sønsteby, Henrik Hovde; Skaar, Erik; Fjellvåg, Helmer; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Monolithic device integration of crystalline complex oxide thin films can open for smarter and more sustainable devices in electronics and energy technology. However, the facile integration of such compounds has so far ...
  • LiF by atomic layer deposition—Made easy 
    Kvalvik, Julie Nitsche; Kvamme, Kristian Breivik; Almaas, Kjetil; Ruud, Amund; Sønsteby, Henrik Hovde; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Lithium fluoride (LiF) is an integral part of UV optics. Recently, it has also gained attention for its role in the solid-electrolyte interphase on the anode of lithium-ion batteries. Atomic layer deposition (ALD) is the ...
  • Molecular layer deposition of photoactive metal-naphthalene hybrid thin films 
    Rogowska, Melania; Hansen, Per-Anders Stensby; Sønsteby, Henrik Hovde; Dziadkowiec, Joanna; Valen, Håkon; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We here report on photoactive organic–inorganic hybrid thin films prepared by the molecular layer deposition (MLD) method. The new series of hybrid films deposited using 2,6-naphthalenedicarboxylic acid (2,6-NDC) and either ...
  • Piezo- and Ferroelectric A+B5+O3 Thin Films 
    Sønsteby, Henrik Hovde (Doctoral thesis / Doktoravhandling, 2017)
    This thesis summarizes atomic layer deposition (ALD) of thin films of a set of alkali metal niobates and tantalates with technologically important physical properties. ALD of LiNbO3 is presented first, where we showcase ...
  • tert-butoxides as precursors for atomic layer deposition of alkali metal containing thin films 
    Sønsteby, Henrik Hovde; Bratvold, Jon Einar; Killi, Veronica Anne-Line Kathrine; Choudhury, Devika; Elam, Jeffrey W.; Fjellvåg, Helmer; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Alkali metal containing materials have become increasingly attractive in a world hunting for sustainable energy materials and green functional devices. Lithium- and sodium battery technology, lead-free piezo- and ferroelectric ...