Browsing SINTEF Open by Author "Jensen, Ingvild Julie Thue"
Now showing items 1-17 of 17
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Assessing the photoelectrochemical properties of C, N, F codoped TiO2 nanotubes of different lengths
Chatzitakis, Athanasios Eleftherios; Grandcolas, Mathieu; Xu, Kaiqi; Mei, Sen; Yang, Juan; Jensen, Ingvild Julie Thue; Simon, Christian; Norby, Truls Eivind (Peer reviewed; Journal article, 2017)The aim of this work has been the photoelectrochemical (PEC) study of nanostructured photoanodes based on TiO2. Highly ordered and well adhered TiO2 nanotubes (TNTs) of different lengths (∼2–20 μm) were prepared in a ... -
Crystallinity of silicon nanoparticles: Direct influence on the electrochemical performance of lithium ion battery anodes
Ulvestad, Asbjørn; Reksten, Anita; Andersen, Hanne Flåten; Almeida Carvalho, Patricia; Jensen, Ingvild Julie Thue; Nagell, Marius Uv; Mæhlen, Jan Petter; Kirkengen, Martin; Koposov, Alexey (Peer reviewed; Journal article, 2020)The use of silicon (Si) in the form of nanoparticles is one of the most promising routes for boosting the capacity of modern Li‐ion batteries. Many parameters influence the performance of Si making the comparison of materials ... -
Crystallinity of silicon nanoparticles: Direct influence on the electrochemical performance of lithium ion battery anodes
Ulvestad, Asbjørn; Reksten, Anita; Andersen, Hanne Flåten; Almeida Carvalho, Patricia; Jensen, Ingvild Julie Thue; Nagell, Marius Uv; Mæhlen, Jan Petter; Kirkengen, Martin; Koposov, Alexey (Peer reviewed; Journal article, 2020)The use of silicon (Si) in the form of nanoparticles is one of the most promising routes for boosting the capacity of modern Li‐ion batteries. Many parameters influence the performance of Si making the comparison of materials ... -
Direct Observation of Charge Transfer between NOx and Monolayer MoS2 by Operando Scanning Photoelectron Microscopy
Jensen, Ingvild Julie Thue; Ali, Ayaz; Zeller, Patrick; Amati, Matteo; Schrade, Matthias; Vullum, Per Erik; Benthem, Marta; Bisht, Prashant; Taniguchi, Takashi; Watanabe, Kenji; Mehta, Bodh R.; Gregoratti, Luca; Belle, Branson (Peer reviewed; Journal article, 2021)Atomically thin transition-metal dichalcogenides (MoS2, WSe2, etc.) have long been touted as promising materials for gas detection because of their tunable band gaps; however, the sensing mechanism, based on a charge-transfer ... -
Enabling Increased Delithiation Rates in Silicon-Based Anodes through Alloying with Phosphorus
Huld, Frederik Thorbjørn; Lai, Samson Yuxiu; Tucho, Wakshum Mekonnen; Batmaz, Rasim; Jensen, Ingvild Julie Thue; Lu, Song; Eleri, Obinna Egwu; Koposov, Alexey; Yu, Zhixin; Lou, Fengliu (Peer reviewed; Journal article, 2022)The capability of battery materials to deliver not only high lithium storage capacity, but also the ability to operate at high charge/discharge rates is an essential property for development of new batteries. In the present ... -
Enhanced gas sensing response for 2D α-MoO3 layers: thickness-dependent changes in defect concentration, surface oxygen adsorption, and metal-metal oxide contact
Bisht, Prashant; Kumar, Arvind; Jensen, Ingvild Julie Thue; Ahmad, Mujeeb; Belle, Branson; Mehta, Bodh (Peer reviewed; Journal article, 2021)In this study, α-MoO3 two-dimensional (2D) layers and thin films were synthesized using pulsed laser deposition technique. X-ray diffraction and Raman spectroscopy confirm the formation of anisotropic α-MoO3. Atomic Force ... -
In-situ electron loss spectroscopy reveals surface dehydrogenation of hydrated ceria nanoparticles at elevated temperatures
Thøgersen, Annett; Sun, Xinwei; Jensen, Ingvild Julie Thue; Prytz, Øystein; Norby, Truls (Peer reviewed; Journal article, 2022)Ceria (CeO2) exhibits high reversible oxygen storage capacity at intermediate temperatures (500–800 °C) related to an extraordinary and not fully understood reduction of its surfaces. We have investigated pristine and ... -
Interface phenomena in magnetron sputtered Cu2O/ZnO heterostructures
Jensen, Ingvild Julie Thue; Gorantla, Sandeep Madhukar; Løvvik, Ole Martin; Gan, Jiantuo; Nguyen, Phuong Dan; Monakhov, Edouard; Svensson, Bengt Gunnar; Gunnæs, Anette Eleonora; Diplas, Spyridon (Peer reviewed; Journal article, 2017)The interface between ZnO and Cu2O has been predicted to be a good candidate for use in thin film solar cells. However, the high predicted conversion efficiency has yet to be fully realized experimentally. To explore the ... -
Investigation of veryintenseD3-band emission in multi-crystalline silicon wafers using electron microscopy and hyperspectral photoluminescence imaging
Thøgersen, Annett; Jensen, Ingvild Julie Thue; Graff, Joachim Seland; Ringdalen, Inga Gudem; Almeida Carvalho, Patricia; Mehl, Torbjørn; Zhu, Junjie; Burud, Ingunn; Olsen, Espen; Søndenå, Rune (Peer reviewed; Journal article, 2022)Defects in high performance multi-crystalline silicon wafers can be detrimental to the lifetime of the solar cell. It is, therefore, important to study and understand the underlying structure and chemical elements present ... -
Nanoscale mapping of optical band gaps using monochromated Electron Energy Loss Spectroscopy
Zhan, Wei; Granerød, Cecilie Skjold; Venkatachalapathy, Vishnukanthan; Johansen, Klaus Magnus H; Jensen, Ingvild Julie Thue; Kuznetsov, Andrej; Prytz, Øystein (Peer reviewed; Journal article, 2017)Using monochromated electron energy loss spectroscopy in a probe-corrected scanning transmission electron microscope we demonstrate band gap mapping in ZnO/ZnCdO thin films with a spatial resolution below 10 nm and spectral ... -
Orientation of reduced graphene oxide in composite coatings
Thorshaug, Knut; Didriksen, Terje; Jensen, Ingvild Julie Thue; Carvalho, Patricia Almeida; Yang, Juan; Grandcolas, Mathieu; Ferber, Alain Marc C; Andy M., Booth; Ağaç, Özlem; Alagöz, Hüseyin; Erdoğan, Nursev; Kuban, Anil; Belle, Branson Delano (Others, 2024)Composite coatings containing reduced graphene oxide (rGO) and 3-(aminopropyl)triethoxysilane functionalised rGO (APTES-rGO) were prepared by sol–gel technology and deposited on Al 2024 T-3. Covalent functionalisation of ... -
Plasmonic properties of aluminium nanowires in amorphous silicon
Thøgersen, Annett; Jensen, Ingvild Julie Thue; Belle, Branson Delano; Stange, Marit Synnøve Sæverud; Reinertsen, Vilde Mari; Kjeldstad, Torunn; Prytz, Øystein; Monakhov, Eduard; Kepaptsoglou, Demie (Peer reviewed; Journal article, 2022)Plasmonic structures can help enhance optical activity in the ultraviolet (UV) region and therefore enhancing photocatalytic reactions and the detection of organic and biological species. Most plasmonic structures are ... -
The Role of Grain Boundary Precipitates during Intergranular Fracture in 6xxx Series Aluminium Alloys
Ringdalen, Inga Gudem; Jensen, Ingvild Julie Thue; Marioara, Calin Daniel; Friis, Jesper (Peer reviewed; Journal article, 2021)During ageing, 6xxx aluminium alloys will develop a microstructure characterised by needle-shaped Mg/Si-rich precipitates in the bulk, precipitate-free zones along the grain boundaries and larger Mg/Si-rich precipitates ... -
Selective etching of nanostructured a-Si:Al and its effect on porosity, Al gradient and surface oxidation
Kjeldstad, Torunn; Thøgersen, Annett; Stange, Marit Synnøve Sæverud; Jensen, Ingvild Julie Thue; Nilsen, Ola; Galeckas, Augustinas; Monakhov, Eduard (Peer reviewed; Journal article, 2020)Nanoporous amorphous silicon (a-Si) with <5 nm cylindrical pores have been fabricated by phase separation of aluminum (Al) and silicon, forming self-assembled Al nanowires (NWs), followed by subsequent removal of Al by wet ... -
Substoichiometric Silicon Nitride – An Anode Material for Li-ion Batteries Promising High Stability and High Capacity
Ulvestad, Asbjørn; Andersen, Hanne Flåten; Jensen, Ingvild Julie Thue; Mongstad, Trygve; Mæhlen, Jan Petter; Prytz, Øystein; Kirkengen, Martin (Journal article; Peer reviewed, 2018)Silicon is often regarded as a likely candidate to replace graphite as the main active anode material in next-generation lithium ion batteries; however, a number of problems impacting its cycle stability have limited its ... -
Surface effects and optical properties of self-assembled nanostructured a-Si:Al
Kjeldstad, Torunn; Thøgersen, Annett; Stange, Marit Synnøve Sæverud; Jensen, Ingvild Julie Thue; Monakhov, Eduard; Galeckas, Augustinas (Journal article; Peer reviewed, 2019)We present a study of the surface effects and optical properties of the self-assembled nanostructures comprised of vertically aligned 5 nm-diameter Al nanowires embedded in an amorphous Si matrix (a-Si:Al). The controlled ... -
Valence charge distribution in homogenous silicon-aluminium thin-films
Thøgersen, Annett; Jensen, Ingvild Julie Thue; Stange, Marit Synnøve Sæverud; Røyset, Arne Karstein; Løvvik, Ole Martin; Ulyashin, Alexander; Diplas, Spyridon (Peer reviewed; Journal article, 2018)Homogenous aSi1−xAlxHy alloyed thin films, made by magnetron sputtering, has been found to exhibit tunable band gap and dielectric constant depending on their composition. The optical properties of alloys are largely defined ...