Ola Nilsen

• Bratvold, Jon E.; Sønsteby, Henrik Hovde; Nilsen, Ola & Fjellvåg, Helmer (2019). Control of growth orientation in as-deposited epitaxial iron-rich nickel ferrite spinel. Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films.  ISSN 0734-2101.  37(2), s 1- 7 . doi: 10.1116/1.5082012
• Getz, Michael; Nilsen, Ola & Hansen, Per-Anders Stensby (2019). Sensors for optical thermometry based on luminescence from layered YVO4: Ln3+ (Ln = Nd, Sm, Eu, Dy, Ho, Er, Tm, Yb) thin films made by atomic layer deposition. Scientific Reports.  ISSN 2045-2322.  9(1) . doi: 10.1038/s41598-019-46694-8
• Hansen, Per-Anders Stensby; Granerød, Cecilie Skjold; Prytz, Øystein & Nilsen, Ola (2019). Controlling luminescence and quenching mechanisms in subnanometer multilayer structure of europium titanate thin films. Journal of Luminescence.  ISSN 0022-2313.  215 . doi: 10.1016/j.jlumin.2019.116618
• Momtazi, Leva; Sønsteby, Henrik Hovde & Nilsen, Ola (2019). Biocompatible organic-inorganic hybrid materials based on nucleobases and titanium developed by molecular layer deposition. Beilstein Journal of Nanotechnology.  ISSN 2190-4286.  10(1), s 399- 411 . doi: 10.3762/bjnano.10.39
• Zhang, Zengxing; Wang, Yonghua; Hansen, Per-Anders Stensby; Du, Kang; Gustavsen, Kim Robert; Liu, Guohua; Karlsen, Frank; Nilsen, Ola; Xue, Chenyang & Wang, Kaiying (2019). Black silicon with order-disordered structures for enhanced light trapping and photothermic conversion. Nano Energy.  ISSN 2211-2855.  65, s 1- 8 . doi: 10.1016/j.nanoen.2019.103992 Vis sammendrag

  Black silicon has become a versatile substrate for photoelectric and photothermic application due to its excellent light trapping ability. However, subsequent material engineering can conflict with its intrinsic anti-reflective behavior. In this paper, we present a two-step etching approach to create novel black silicon combining ordered micropores and disordered nanopores. The larger pores increase the optical path length and provide space to load functional materials, while the smaller ones facilitate coupling between the incident solar radiation and material. The proposed etching method increases the light-trapping ability of conventional nanostructured black silicon and achieves enhanced absorption in a broad spectrum. Besides, loading Au nanoparticles further improve the light absorbance in the near-infrared range of 1100–1700 nm. The intrinsic SiOx-rich layer on silicon surface produced during SF6/O2 plasma etching leads to photothermic conversion being the dominant dissipation route for the light energy, thereby yielding outstanding performance in photothermic and photo-thermal-electric demonstrations. This work establishes a robust relationship between three-dimensional structure and light-trapping property of black silicon and provides insights into substrate designs that facilitate the light conversion.

• Dziadkowiec, Joanna; Javadi, Shaghayegh; Bratvold, Jon E.; Nilsen, Ola & Røyne, Anja (2018). Surface Forces Apparatus Measurements of Interactions between Rough and Reactive Calcite Surfaces. Langmuir.  ISSN 0743-7463.  34((25)), s 7248- 7263 . doi: 10.1021/acs.langmuir.8b00797 Fulltekst i vitenarkiv.
• Momtazi, Leva; Dartt, Darlene Ann; Nilsen, Ola & Eidet, Jon Roger (2018). Molecular layer deposition builds biocompatible substrates for epithelial cells. Journal of Biomedical Materials Research. Part A.  ISSN 1549-3296.  106(12), s 3090- 3098 . doi: 10.1002/jbm.a.36499
• Sønsteby, Henrik Hovde; Aarholt, Thomas; Prytz, Øystein; Fjellvåg, Helmer & Nilsen, Ola (2018). First Complex Oxide Superconductor by Atomic Layer Deposition. Chemical Communications.  ISSN 1359-7345.  54(59), s 8253- 8256 . doi: 10.1039/c8cc04998j
• Sønsteby, Henrik Hovde; Bratvold, Jon E.; Weibye, Kristian; Fjellvåg, Helmer & Nilsen, Ola (2018). Phase Control in Thin Films of Layered Cuprates. Chemistry of Materials.  ISSN 0897-4756.  30(3), s 1095- 1101 . doi: 10.1021/acs.chemmater.7b05005
• Vajeeston, Ponniah; Fjellvåg, Helmer & Nilsen, Ola (2018). Search for potential precursors for Si-atomic layer deposition- a quantum chemical study. Materials letters (General ed.).  ISSN 0167-577X.  216, s 189- 192 . doi: 10.1016/j.matlet.2018.01.040 Fulltekst i vitenarkiv. Vis sammendrag

  Thin film of silicon is an interesting material for many technological applications in electronic industry and in energy harvesting technologies, but requires a method for controlled growth of thin films. The purpose of this study is to screen a wide variety of Si content precursors for Si atomic layer deposition (ALD) reactions using state-of-the-art density-functional calculations. Among the studied 85 Si content precursors we found that C7H12OSi–Methoxy-trivinyl-silane and C7H9NSi–Benzyliminosilane show positive indications for ALD reactivity for Si deposition. We believe that this finding will be helpful to develop low-cost, high-energy efficiency thin-film solar cells for future scale up implementation in photovoltaics.

• Ferreira, Ana RV; Haapanen, Janne; Makela, Jyrki M; Bratvold, Jon E.; Nilsen, Ola; Tuominen, Mikko; Alves, Vitor D & Coelhoso, Isabel M (2017). Comparison of different coating techniques on the properties of FucoPol films. International Journal of Biological Macromolecules.  ISSN 0141-8130.  103, s 268- 274 . doi: 10.1016/j.ijbiomac.2017.05.021
• Getz, Michael; Hansen, Per-Anders Stensby; Fjellvåg, Øystein Slagtern; Ahmed, Mohammed Amin Karim; Fjellvåg, Helmer & Nilsen, Ola (2017). Intense NIR emission in YVO4:Yb3+ thin films by atomic layer deposition. Journal of Materials Chemistry C.  ISSN 2050-7526.  5(33), s 8572- 8578 . doi: 10.1039/c7tc02135f Fulltekst i vitenarkiv.
• Getz, Michael; Hansen, Per-Anders; Ahmed, Mohammed Amin Karim; Fjellvåg, Helmer & Nilsen, Ola (2017). Luminescent YbVO4 by atomic layer deposition. Dalton Transactions.  ISSN 1477-9226.  46(9), s 3008- 3013 . doi: 10.1039/c7dt00253j Fulltekst i vitenarkiv.
• Getz, Michael; Hansen, Per-Anders; Fjellvåg, Helmer & Nilsen, Ola (2017). Luminescent properties of europium titanium phosphate thin films deposited by atomic layer deposition. RSC Advances.  ISSN 2046-2069.  7(13), s 8051- 8059 . doi: 10.1039/c6ra27644j Fulltekst i vitenarkiv.
• Kjeldstad, Torunn; Thøgersen, Annett; Nilsen, Ola; Monakhov, Edouard & Galeckas, Augustinas (2017). Controllable template approach for ZnO nanowire growth. Physica Status Solidi (a) applications and materials science.  ISSN 1862-6300.  214(2), s 1- 6 . doi: 10.1002/pssa.201600480 Vis sammendrag

  Anodic aluminum oxide (AAO) is an optically transparent material with uniform hexagonal pores, which has widely been used as a template for nanowire growth. This study examines the potential of utilizing commercially available AAO to fabricate sub-10 nm ZnO nanowires by atomic layer deposition. The pore diameter of the AAO framework is reduced by controlled deposition of . Subsequently, ZnO is deposited and ZnO nanowires are obtained. The analysis of structural and optical properties shows that the nanowires are polycrystalline, and exhibit a pronounced near band edge emission. Photoluminescence (PL) measurements are performed to monitor the effect of additional coating with and ZnO, on the optical stability of the AAO. The measurements indicate that the PL is highly influenced by the adsorption and desorption of species from the ambient at the surface. ALD deposition of a thin layer reduces considerably the effect of ambient atmosphere. The layer of facilitates PL characterization of very thin ZnO nanowires.

• Lausund, Kristian Blindheim; Petrovic, Veljko & Nilsen, Ola (2017). All-gas-phase synthesis of amino-functionalized UiO-66 thin films. Dalton Transactions.  ISSN 1477-9226.  46(48), s 16983- 16992 . doi: 10.1039/c7dt03518g
• Momtazi, Leva; Sønsteby, Henrik Hovde; Dartt, DA; Eidet, Jon Roger & Nilsen, Ola (2017). Bioactive titaminates from molecular layer deposition. RSC Advances.  ISSN 2046-2069.  7(34), s 20900- 20907 . doi: 10.1039/C7RA01918A Fulltekst i vitenarkiv.
• Napari, M; Tarvainen, O; Kinnunen, S; Arstila, K; Julin, J; Fjellvåg, Øystein Slagtern; Weibye, Kristian; Nilsen, Ola & Sajavaara, T (2017). The α and γ plasma modes in plasma-enhanced atomic layer deposition with O2-N2 capacitive discharges. Journal of Physics D: Applied Physics.  ISSN 0022-3727.  50(9) . doi: 10.1088/1361-6463/aa59b3 Fulltekst i vitenarkiv.
• Ruud, Amund; Miikkulainen, Ville; Mizohata, Kenichiro; Fjellvåg, Helmer & Nilsen, Ola (2017). Enhanced process and composition control for atomic layer deposition with lithium trimethylsilanolate. Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films.  ISSN 0734-2101.  35(1) . doi: 10.1116/1.4972209
• Sønsteby, Henrik Hovde; Fjellvåg, Helmer & Nilsen, Ola (2017). Functional perovskites by atomic layer deposition - an overview. Advanced Materials Interfaces.  ISSN 2196-7350.  4:1600903, s 1- 15 . doi: 10.1002/admi.201600903
• Sønsteby, Henrik Hovde; Weibye, Kristian; Bratvold, Jon E. & Nilsen, Ola (2017). Rubidium containing thin films by atomic layer deposition. Dalton Transactions.  ISSN 1477-9226.  46(46), s 16139- 16144 . doi: 10.1039/c7dt03753h
• Gandrud, Knut Bjarne; Nilsen, Ola & Fjellvåg, Helmer (2016). Ultra-high power capabilities in amorphous FePO4 thin films. Journal of Power Sources.  ISSN 0378-7753.  306, s 454- 458 . doi: 10.1016/j.jpowsour.2015.12.024
• Gustavsen, Kim Robert; Nygård, Ken Alexander; Honerød-Bentsen, Preben; Du, Kang; Liu, Guohua; Tayyib, Muhammad; Breiby, Dag Werner; Weibye, Kristian; Nilsen, Ola; Aasmundtveit, Knut Eilif & Wang, Kaiying (2016). Wafer-level fabrication and characterization of amorphous thin films MoS2 prepared by RF magnetron sputtering technique. ECS Transactions.  ISSN 1938-5862.  75(13), s 131- 137 . doi: 10.1149/07513.0131ecst Vis sammendrag

  In this paper, we present a study of wafer-level process for deposition of amorphous thin film MoS2 by radio-frequency (RF) magnetron sputtering technique. Thin film deposition was performed in argon atmosphere with pressure around 10-2 to 10-4 Torr, RF power between 100-250 W and temperature from room temperature up to 250°C. X-ray diffraction indicates that the thin films are amorphous. Deposition rate and sulphur concentration showed a clear dependence on variation in RF power. Surface roughness increase as temperature was increased from room temperature up to 250°C. Photocurrent increases about 20% under white light illumination. The thin films are continuous with low roughness which might make it a potential candidate for wafer-scale production for advanced electronics or sensor applications.

• Hansen, Per-Anders; Fjellvåg, Helmer; Finstad, Terje & Nilsen, Ola (2016). Luminescence properties of lanthanide and ytterbium lanthanide titanate thin films grown by atomic layer deposition. Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films.  ISSN 0734-2101.  34:01A130 . doi: 10.1116/1.4936389
• Hu, Yang; Ruud, Amund; Miikkulainen, Ville; Norby, Truls; Nilsen, Ola & Fjellvåg, Helmer (2016). Electrical characterization of amorphous LiAlO2 thin films deposited by atomic layer deposition. RSC Advances.  ISSN 2046-2069.  6(65), s 60479- 60486 . doi: 10.1039/c6ra03137d
• Lanford, WA; Parenti, M; Nordell, BJ; Paquette, MM; Caruso, AN; Mäntymäki, M; Hämäläinen, J.; Ritala, M; Klepper, Karina Barnholt; Miikkulainen, Ville; Nilsen, Ola; Tenhaeff, W; Dudney, N; Koh, D; Banerjee, SK; Mays, E; Bielefeld, J & King, SW (2016). Nuclear reaction analysis for H, Li, Be, B, C, N, O and F with an RBS check. Nuclear Instruments and Methods in Physics Reseach B.  ISSN 0168-583X.  371, s 211- 215 . doi: 10.1016/j.nimb.2015.10.052
• Lausund, Kristian Blindheim & Nilsen, Ola (2016). All-gas-phase synthesis of UiO-66 through modulated atomic layer deposition. Nature Communications.  ISSN 2041-1723.  7 . doi: 10.1038/ncomms13578
• Müller, Benjamin; Haugen, Håvard Jostein; Nilsen, Ola & Tiainen, Hanna (2016). Atomic layer deposited TiO2 protects porous ceramic foams from grain boundary corrosion. Corrosion Science.  ISSN 0010-938X.  106, s 35- 42 . doi: 10.1016/j.corsci.2016.01.023 Vis sammendrag

  Intergranular corrosion causes a significant loss of compressive strength in highly porous TiO2 foams. In this study, the resistance of conformal atomic layer deposited (ALD) coatings against intergranular corrosion has been investigated. ALD coated TiO2 foams maintained 107% ± 20% and 94% ± 10% of their initial compressive strength for films deposited at 150 °C and 250 °C, respectively. After an immersion period of 28 days in 1 mM HCl, amorphous films showed greater potential in corrosion protection of polycrystalline TiO2 foams. However, anatase coatings with sufficient protection may be more beneficial for cell-material interactions.

• Rauwel, Erwan Yann; Galeckas, Augustinas; Rauwel, Protima; Hansen, Per-Anders; Wragg, David; Nilsen, Ola & Fjellvåg, Helmer (2016). Metal oxide nanoparticles embedded in rare-earth matrix for low temperature thermal imaging applications. Materials Research Express.  ISSN 2053-1591.  3(5) . doi: 10.1088/2053-1591/3/5/055010
• Samarasingha, Pushpaka; Andersen, Niels Højmark; Sørby, Magnus Helgerud; Kumar, Susmit; Nilsen, Ola & Fjellvåg, Helmer (2016). Neutron diffraction and Raman analysis of LiMn1.5Ni0.5O4 spinel type oxides for use as lithium ion battery cathode and their capacity enhancements. Solid State Ionics.  ISSN 0167-2738.  284, s 28- 36 . doi: 10.1016/j.ssi.2015.11.018
• Samarasingha, Pushpaka; Sottmann, Jonas; Margadonna, Serena; Emerich, Hermann; Nilsen, Ola & Fjellvåg, Helmer (2016). In situ synchrotron study of ordered and disordered LiMn1.5Ni0.5O4 as lithium ion battery positive electrode. Acta Materialia.  ISSN 1359-6454.  116, s 290- 297 . doi: 10.1016/j.actamat.2016.06.040
• Sønsteby, Henrik; Nilsen, Ola & Fjellvåg, Helmer (2016). Atomic layer deposition of (K,Na)(Nb,Ta)O3 thin films. Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films.  ISSN 0734-2101.  34(4) . doi: 10.1116/1.4953406
• Bergum, Kristin; Fjellvåg, Helmer & Nilsen, Ola (2015). Thickness dependent structural, optical and electrical properties of Ti-doped ZnO films prepared by atomic layer deposition. Applied Surface Science.  ISSN 0169-4332.  332, s 494- 499 . doi: 10.1016/j.apsusc.2015.01.124
• Bratvold, Jon E.; Carraro, Giorgio; Barreca, Davide & Nilsen, Ola (2015). An iron(II) diketonate-diamine complex as precursor for thin film fabrication by atomic layer deposition. Applied Surface Science.  ISSN 0169-4332.  347, s 861- 867 . doi: 10.1016/j.apsusc.2015.04.154
• Miikkulainen, Ville; Nilsen, Ola; Li, Han; King, Sean W.; Laitinen, Mikko; Sajavaara, Timo & Fjellvåg, Helmer (2015). Atomic layer deposited lithium aluminum oxide: (In)dependency of film properties from pulsing sequence. Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films.  ISSN 0734-2101.  33(1A101) . doi: 10.1116/1.4890006

Se alle arbeider i Cristin

• Bratvold, Jon E.; Nilsen, Ola & Fjellvåg, Helmer (2019). Towards a Model System for Lamellar Magnetism by Atomic Layer Deposition. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 2093.
• Brennhagen, Anders; Kvamme, Kristian Breivik; Sverdlilje, Katja S. S. & Nilsen, Ola (2019). Amorphous Iron Phosphates for Thin Film batteries.
• Brennhagen, Anders & Nilsen, Ola (2019). Forskningstorget 2019 - Batteriproduksjon på stand.
• Chavan, Sachin Maruti; Gorzkowska-Sobas, Agnieszka A; de Koning, Martijn; Lausund, Kristian Blindheim; Petrovic, Veljko & Nilsen, Ola (2019). Towards adsorptive and catalytically active materials using an all-gas-phase UiO-66-NH2 synthesis approach.
• de Koning, Martijn; Gorzkowska-Sobas, Agnieszka A; Lausund, Kristian Blindheim; Petrovic, Veljko; Nilsen, Ola & Smith, Martin W. (2019). Thin layers of UiO-66-NH2 and their catalytic activity towards selected chemical warfare agents.
• Dziadkowiec, Joanna; Zareeipolgardani, Bahareh; Bratvold, Jon E.; Nilsen, Ola; Dysthe, Dag Kristian & Røyne, Anja (2019). Long-range repulsive forces between reactive calcite surfaces are generated due to nucleation in a confined solution.
• Gorzkowska-Sobas, Agnieszka A; Lausund, Kristian Blindheim; Petrovic, Veljko; de Koning, Martijn; Chavan, Sachin Maruti; Smith, Martin W. & Nilsen, Ola (2019). Ammonia adsorption in metal-organic framework materials MLD-deposited on functional substrate for respiratory protection purposes.
• Hval, Halvor Høen; Ruud, Amund; Forseth, Sissel; Emerich, Hermann; Nilsen, Ola & Fjellvåg, Helmer (2019). Operando investigation of batteries.
• Hval, Halvor Høen; Tripathi, Alok Mani; Ruud, Amund; Emerich, Hermann; Forseth, Sissel; Nilsen, Ola & Fjellvåg, Helmer (2019). Make Batteries Safe Again.
• Hval, Halvor Høen; Tripathi, Alok Mani; Ruud, Amund; Emerich, Hermann; Forseth, Sissel; Nilsen, Ola & Fjellvåg, Helmer (2019). Make Batteries Safe Again.
• Koposov, Alexey; Gandrud, Knut Bjarne; Lai, Samson Yuxiu; Jensen, Ingvild Julie Thue; Nagell, Marius Uv; Nilsen, Ola & Mæhlen, Jan Petter (2019). Silicon on the Road. Vis sammendrag

  IFE together with the UiO, University of Tours (France) and SINTEF recently started a new project “Silicon-on-the-Road”, with the primary aim to develop new silicon-based anode materials for lithium ion batteries. Stabilizing the surfaces of silicon particles has proven to be the most challenging step in the development of high capacity silicon-based electrodes. One of the objectives is therefore to create a material that than can coat the active particles and deliver structural integrity for the anode while keeping all the attractive properties of silicon. The project encompasses a range of coating and analyses methodologies. The current presentation will focus on results obtained using one of the more versatile methods; Atomic Layer Deposition (ALD) and our recent results on thin-film electrodes of amorphous Si as model systems for coating development. This project is co-funded by Norwegian industry and the Research Counsil of Norway through the EnergiX program.

• Nitsche Kvalvik, Julie; Hansen, Per-Anders Stensby & Nilsen, Ola (2019). Area-selective deposition of MoO3 thin films by atomic layer deposition.
• Dziadkowiec, Joanna; Javadi, Shaghayegh; Bratvold, Jon E.; Nilsen, Ola & Røyne, Anja (2018). Adhesive and repulsive forces between calcite surfaces.
• Dziadkowiec, Joanna; Javadi, Shaghayegh; Bratvold, Jon E.; Nilsen, Ola & Røyne, Anja (2018). Nucleation in solution confined between reactive surfaces can generate long-range repulsive forces.
• Granerød, Cecilie Skjold; Prytz, Øystein; Monakhov, Eduard & Nilsen, Ola (2018). Measuring optical properties on the nanoscale: a STEM-EELS study of ZnO. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 2034.
• Hansen, Per-Anders Stensby; Meijerink, Andries & Nilsen, Ola (2018). Strong TiO2 sensitization of Tb3+ by preventing Ti-Tb charge transfer quenching in subnanometer multilayer structures.
• Hansen, Per-Anders Stensby; Nesteng, Hanne; Svendsen, Ole Joachim & Nilsen, Ola (2018). Blue, green and red emitting lanthanide-organic hybrid films excitable with long wavelength UV.
• Hansen, Per-Anders Stensby; Zikmund, Tomas; Yu, Ting; Nitsche Kvalvik, Julie; Aarholt, Thomas; Prytz, Øystein; Meijerink, Andries & Nilsen, Ola (2018). Aromatic-fluoride nanocomposite materials by atomic layer deposition.
• Hval, Halvor Høen; Ruud, Amund; Forseth, Sissel; Emerich, Hermann; Nilsen, Ola & Fjellvåg, Helmer (2018). Operando investigation of batteries.
• Hval, Halvor Høen; Ruud, Amund; Forseth, Sissel; Emerich, Hermann; Nilsen, Ola & Fjellvåg, Helmer (2018). Operando investigation of batteries.
• Javadi, Shaghayegh; Dziadkowiec, Joanna; Røyne, Anja; Bratvold, Jon E.; Nilsen, Ola & Hiorth, Aksel (2018). Synthetic CaCO3 surfaces in aqueous solutions – AFM and Surface Force Apparatus (SFA) measurements.
• Kjeldstad, Torunn; Thøgersen, Annett; Galeckas, Augustinas; Monakhov, Eduard; Stange, Marit Synnøve Sæverud & Nilsen, Ola (2018). Aluminum nanowires in amorphous silicon.
• Kvamme, Kristian Breivik; Sverdlilje, Katja Sofie Støren & Nilsen, Ola (2018). Thin film batteries at UiO. Vis sammendrag

  Batteries are fast becoming the go-to energy storage solution of our future, even for highly demanding applications such as aviation. The growing expectations and demands for our future batteries require radical improvements in both design and construction. Several approaches are being pursued throughout the research community. At UiO, we are exploring solid-state electrolytes to fulfil these demands. Changing from a liquid to a solid electrolyte is a drastic change in battery design, and solid electrolytes will significantly improve the properties of batteries. This will in turn enable new applications and further decouple our civilization from fossil fuels. Most solid materials have low ionic conductivity, but not all. We are exploring solid materials with high ionic conductivity, including combinations of organic and inorganic structures forming a class of hybrid materials. This work is based on our previous, successful work on high-performance FePO4 cathode materials that show quasi-capacitive behaviour.

• Momtazi, Leva; Nilsen, Ola & Eidet, Jon Roger (2018). Design and Growth of Bioactive Materials by Molecular Layer Deposition. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 1964.
• Skottvoll, Frøydis Sved; Nilsen, Ola; Krauss, Stefan; Sullivan, Gareth & Wilson, Steven Ray Haakon (2018). Integrating highly miniaturized LC-MS systems with “Organ on a Chip”; the future of preclinical modelling.
• Thøgersen, Annett; Stange, Marit Synnøve Sæverud; Galeckas, Augustinas; Nilsen, Ola & Monakhov, Eduard (2018). Aluminum nanowires in amorphous silicon.
• Dziadkowiec, Joanna; Javadi, Shaghayegh; Bratvold, Jon E.; Nilsen, Ola & Røyne, Anja (2017). Interactions between reactive CaCO3 surfaces in aqueous solutions -Surface Forces Apparatus measurements.
• Getz, Michael; Nilsen, Ola; Fjellvåg, Helmer & Hansen, Per-Anders Stensby (2017). Design and Growth of Luminescent Thin Films by Atomic Layer Deposition. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 1895.
• Kjeldstad, Torunn; Galeckas, Augustinas; Nilsen, Ola; Azarov, Alexander; Stange, Marit Synnøve Sæverud; Diplas, Spyridon & Thøgersen, Annett (2017). Self-assembly of Al-nanowires in silicon.
• Kvamme, Kristian Breivik; Ruud, Amund; Weibye, Kristian & Nilsen, Ola (2017). LiPO barriers by ALD Surface modification of LiFePO4 cathodes. Vis sammendrag

  Lithium phosphate (Li3PO4) is a promising material as solid state electrolyte. In this work a new route for synthesis of phosphorous based materials using Atomic layer deposition (ALD) is demonstrated. The established phosphate precursor for ALD use has been replaced by the more volatile phosphite precursors for synthesis of LiPO and AlPO materials. Furthermore, the LiPO product has been tested as a barrier material onto LiFePO4 cathodes to improve kinetics and cycling performance. We have shown that there is indeed an improvement at low barrier thicknesses Figure 1. Adding barrier layers in the interphase between the cathode and electrolyte can be seen as a step on towards development and implementation of commercially viable solid state electrolytes. Deposition of barriers for battery materials by ALD is not a new field [1]. Films of; AlPO4, FePO4 [2], Al2O3 [3, 4], TiO2 [5], Li3PO4 [5] and LiPON [6] have all been reported. Our novel approach is application of phosphorous precursors in the +III oxidation state, such as trimethyl phosphite (Me3PO3) and triethyl phosphite (Et3PO3). These precursors can replace trimethyl phosphate (Me3PO4) in established deposition routes for aluminium phosphate (AlPO4) [7] and lithium phosphate (Li3PO4) [8, 9] by ALD. Furthermore, the resulting LixPO3 product can form a barrier layer where certain thicknesses will give a positive contribution to kinetics, capacity retention and cycling performance.

• Lausund, Kristian Blindheim & Nilsen, Ola (2017). Crystallization of hybrid films to form the metal-organic framework UiO-66.
• Nilsen, Ola; Gandrud, Knut Bjarne; Ruud, Amund & Fjellvåg, Helmer (2017). Atomic Layer Deposition for Thin-Film Lithium-Ion Batteries, In Julien Bachmann (ed.),  Atomic Layer Deposition in Energy Conversion Applications.  Wiley-VCH Verlagsgesellschaft.  ISBN 9783527339129.  Chapter 6.  s 183 - 207
• Ruud, Amund; Sottmann, Jonas; Slawinski, Wojciech Andrzej; Nilsen, Ola & Fjellvåg, Helmer (2017). Lithiation processes in α-MoO3 for lithium ion battery.
• Sønsteby, Henrik; Fjellvåg, Helmer & Nilsen, Ola (2017). Piezo- and Ferroelectric A+B5+O3 Thin Films.
• Thøgersen, Annett; Kjeldstad, Torunn; Jensen, Ingvild Julie Thue; Muntingh, Agnar Georg Peder; Stange, Marit Synnøve Sæverud; Ulyashin, Alexander; Galeckas, Augustinas; Nilsen, Ola & Monakhov, Edouard (2017). Plasmonic properties of aluminium nanowires in amorphous silicon and inverted silicon nanowires.
• Thøgersen, Annett; Kjeldstad, Torunn; Jensen, Ingvild Julie Thue; Stange, Marit Synnøve Sæverud; Ulyashin, Alexander; Galeckas, Augustinas; Nilsen, Ola; Monakhov, Edouard & Diplas, Spyridon (2017). Growing and characterizing self-organizing aluminium nanowires in amorphous silicon.
• Kjeldstad, Torunn; Galeckas, Augustinas; Monakhov, Edouard; Nilsen, Ola & Thøgersen, Annett (2016). Controllable template approach for ZnO nanowire growth.
• Kjeldstad, Torunn; Galeckas, Augustinas; Nilsen, Ola; Azarov, Alexander; Stange, Marit Synnøve Sæverud; Diplas, Spyridon & Thøgersen, Annett (2016). A new silicon nanostructure.
• Lausund, Kristian Blindheim & Nilsen, Ola (2016). Atomic Layer Deposition of the Metal Organic Framework UiO-66.
• Nilsen, Ola & Sønsteby, Henrik (2016). ALD - From Ideal to Real.
• Røyne, Anja; Bergsaker, Anne Schad; Javadi, Shaghayegh; Dziadkowiec, Joanna; Bratvold, Jon E. & Nilsen, Ola (2016). The role of surface forces and confined fluid films in the slow deformation of rocks.
• Tiainen, Hanna; Müller, Benjamin; Campos, Lluis; Ramis, Joana Maria; Nilsen, Ola & Haugen, Håvard Jostein (2016). Atomic layer deposited TiO2 protects highly porous ceramic bone scaffolds from grain boundary corrosion.
• Tiainen, Hanna; Müller, Benjamin; Campos, Lluis; Ramis, Joana Maria; Nilsen, Ola & Haugen, Håvard Jostein (2016). Atomic layer deposited titanium dioxide layer protects highly porous ceramic foams from grain boundary corrosion.
• Gandrud, Knut Bjarne; Nilsen, Ola & Fjellvåg, Helmer (2015). Ultra-High Power Capabilities in Amorphous LiFePO4 Thin Films.
• Getz, Michael; Hansen, Per-Anders; Nilsen, Ola & Fjellvåg, Helmer (2015). Down Conversion in YbVO4 and YVO4:Yb3+ Thin Films Synthesized by Atomic Layer Deposition.
• Getz, Michael; Hansen, Per-Anders; Nilsen, Ola & Fjellvåg, Helmer (2015). Down Conversion in YbVO4 and YVO4:Yb3+ Thin Films Synthesized by Atomic Layer Deposition.
• Granerød, Cecilie Skjold; Nilsen, Ola; Monakhov, Edouard & Prytz, Øystein (2015). Bandgaps in the TEM.
• Granerød, Cecilie Skjold; Zhan, Wei; Venkatachalapathy, Vishnukanthan; Kuznetsov, Andrej; Nilsen, Ola; Monakhov, Edouard & Prytz, Øystein (2015). Bandgap of Functional Oxides in STEM-EELS.
• Hu, Yang; Miikkulainen, Ville; Mizohata, Kenichiro; Norby, Truls; Nilsen, Ola & Fjellvåg, Helmer (2015). Conductivity of LixTaOy thin film electrolytes prepared by Atomic Layer Deposition (ALD).
• Hu, Yang; Ruud, Amund; Miikkulainen, Ville; Norby, Truls; Nilsen, Ola & Fjellvåg, Helmer (2015). Electrical conductivity characterization of LiAlO2 thin films prepared by ALD.
• Lausund, Kristian Blindheim; Wilson, Steven Ray Haakon; Gorbitz, Carl Henrik; Lundanes, Elsa & Nilsen, Ola (2015). Deposition of organic-inorganic hybrid films of Zr-1,4-BDC by ALD.
• Lausund, Kristian Blindheim; Wilson, Steven Ray Haakon; Gorbitz, Carl Henrik; Lundanes, Elsa & Nilsen, Ola (2015). Nano-filters for Blood Sample Analysis.
• Lausund, Kristian Blindheim; Wilson, Steven Ray Haakon; Gorbitz, Carl Henrik; Lundanes, Elsa & Nilsen, Ola (2015). Nano-filters for blood sample analysis.
• Lausund, Kristian Blindheim; Wilson, Steven Ray Haakon; Gorbitz, Carl Henrik; Lundanes, Elsa & Nilsen, Ola (2015). Porous inorganic-organic hybrid materials by ALD.
• Nilsen, Ola (2015). Hjemmeis og borteis.
• Nilsen, Ola (2015). Hva er det som er så stort med nano?.
• Nilsen, Ola (2015). Nano er stort!.
• Nilsen, Ola (2015). Snow crystals - a letter from the sky.
• Nilsen, Ola (2015). Snøkrystaller - hvordan dannes de og hvorfor er de så fantastisk spennende?.
• Nilsen, Ola (2015). The Reservoir Effect and Its Implications.
• Nilsen, Ola; Fjellvåg, Helmer; Monakhov, Edouard & Alnes, Mari Endresen (2015). Transparent Conducting Oxides by Atomic Layer Deposition.
• Nilsen, Ola; Hu, Yang; Sottmann, Jonas; Gandrud, Knut Bjarne; Samarasingha, Pushpaka; Moser, Annina & Fjellvåg, Helmer (2015). Electrons in motion.
• Ruud, Amund; Gandrud, Knut Bjarne; Nilsen, Ola & Fjellvåg, Helmer (2015). Ultra-High Power Capabilities in Amorphous LiFePO4 Thin Films and New Lithium precursor.
• Ruud, Amund; Sottmann, Jonas; Nilsen, Ola & Fjellvåg, Helmer (2015). A new LixMoO3 phase.
• Samarasingha, Pushpaka; Fjellvåg, Helmer & Nilsen, Ola (2015). Synthesis and characterization of novel cathode materials for Li batteries and their applications in Li batteries. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 1655. Vis sammendrag

  Improvements in performance of lithium ion batteries (LIB) depend on further developments of the electroactive materials, specially the cathode. Many different classes of materials have been investigated as possible cathode materials to replace the presently used LiCoO2. However, despite the immense efforts devoted to develop new LIB cathode materials, they still suffer from limitations connected with production costs, cyclability, capacity, electronic conductivity and potential hazards for user and environment. There is therefore still an unprecedented demand for new types of materials for lithium ion batteries delivering at all mentioned points, as well as deeper insight into the limiting factors of the present state-of-the-art materials. The current work has opened for deeper insight into assumed well known materials, such as LiNi0.5Mn1.5O4, using a combination of x-ray and neutron scattering studies. We have thereby questioned the previously accepted assumptions with respect to importance of order and disorder in cationic distributions. Moreover, we have enabled electrochemical studies of previously difficult materials by using proper electrode preparation techniques, exemplified by FeNb2O6 and CrNb2O6. The current findings point at the importance of continuously revisiting known systems with better tools, in addition to exploring new compounds as replacements for technologically important materials, such as cathode materials for Li-ion batteries. The path for narrowing the gap towards gasoline in energy density is long, and every small step is required. This work is such an effort.

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