- document
-
van de Water, W. (author), Dam, Nico (author), Calzavarini, Enrico (author)Molecular tagging is used to study the dispersion and deformation of patterns written in turbulent air. The writing is done by fusing O2 and N2 molecules into NO in the focus of a strong ultraviolet laser beam. By crossing several of these laser beams, patterns that have both small and large scales can be painted. The patterns are visualized...journal article 2024
- document
-
Colombi, G. (author), Boshuizen, B. (author), Chaykina, D. (author), Hsu, Y. (author), Schreuders, H. (author), Savenije, T.J. (author), Dam, B. (author)At ambient conditions, rare-earth oxyhydride thin films show reversible photochromism and photoconductivity, while their mechanism and relation are still unclear. In this work, this question is explored with in situ time-resolved measurements of both optical and transport properties of Gd-based oxyhydride thin films. It is found that p-type...journal article 2023
- document
-
Chaykina, D. (author), Colombi, G. (author), Schreuders, H. (author), Dam, B. (author)Photochromism has been reported for several rare-earth (RE) metal oxyhydride thin films and is characterized by a reversible darkening of the sample when exposed to light with energy greater than its optical bandgap. Here, we extend the range of known photochromic RE-oxyhydrides to include samarium oxyhydrides. These SmH3−2xOx thin films are...journal article 2023
- document
-
Exploring Multi-Anion Chemistry in Yttrium Oxyhydrides: Solid-State NMR Studies and DFT CalculationsBanerjee, Shrestha (author), Chaykina, D. (author), Stigter, Marinus (author), Colombi, G. (author), Eijt, S.W.H. (author), Dam, B. (author), de Wijs, Gilles A. (author), Kentgens, Arno P.M. (author)Rare earth oxyhydrides REO<sub>x</sub>H<sub>(3-2x)</sub>, with RE = Y, Sc, or Gd and a cationic FCC lattice, are reversibly photochromic in nature. It is known that structural details and anion (O<sup>2-</sup>:H<sup>-</sup>) composition dictate the efficiency of the photochromic behavior. The mechanism behind the photochromism is, however,...journal article 2023
- document
-
Bannenberg, L.J. (author), Schreuders, H. (author), van Beugen, N. (author), Kinane, Christy (author), Hall, Stephen (author), Dam, B. (author)Accurate, cost-efficient, and safe hydrogen sensors will play a key role in the future hydrogen economy. Optical hydrogen sensors based on metal hydrides are attractive owing to their small size and costs and the fact that they are intrinsically safe. These sensors rely on suitable sensing materials, of which the optical properties change...journal article 2023
- document
-
Pöhlmann, Katharina Margareta Theresa (author), Al Taie, Ammar Jamal Said (author), Li, Gang (author), Dam, Abhraneil (author), Wang, Yu Kai (author), Wei, Chun Shu (author), Papaioannou, G. (author)The adoption of automated vehicles will be a positive step towards road safety and environmental benefits. However, one major challenge that still exist is motion sickness. The move from drivers to passengers who will engage in non-driving related tasks as well as the potential change in the layout of the car interior that will come with...conference paper 2023
- document
-
Wu, Z. (author), De Krom, Tom (author), Colombi, G. (author), Chaykina, D. (author), Van Hattem, Gijs (author), Schut, H. (author), Dickmann, Marcel (author), Brück, E.H. (author), Dam, B. (author), Eijt, S.W.H. (author)Rare-earth (RE) oxyhydride thin films show a color-neutral, reversible photochromic effect at ambient conditions. The origin of the photochromism is the topic of current investigations. Here, we investigated the lattice defects, electronic structure, and crystal structure of photochromic YHxOy and GdHxOy thin films deposited by magnetron...journal article 2022
- document
-
Colombi, G. (author), Stigter, Marinus (author), Chaykina, D. (author), Banerjee, Shrestha (author), Kentgens, Arno P.M. (author), Eijt, S.W.H. (author), Dam, B. (author), De Wijs, Gilles A. (author)In this paper, we investigate by ab initio DFT how the O:H ratio influences the formation and lattice energy, metastability, and optical properties of Y and La anion-disordered ROxH3-2x oxyhydrides. To achieve this, a set of special quasirandom structures (SQS) is introduced to model anion-disorder along the whole RH3-R2O3 composition line. A...journal article 2022
- document
-
Chaykina, D. (author), Usman, I.N. (author), Colombi, G. (author), Schreuders, H. (author), Tyburska-Pueschel, Beata (author), Wu, Z. (author), Eijt, S.W.H. (author), Bannenberg, L.J. (author), De Wijs, Gilles A. (author), Dam, B. (author)To develop an understanding of the photochromic effect in rare-earth metal oxyhydride thin films (REH3-2xOx, here RE = Y), we explore the aliovalent doping of the RE cation. We prepared Ca-doped yttrium oxyhydride thin films ((CazY1-z)HxOy) by reactive magnetron cosputtering with Ca doping concentrations between 0 and 36 at. %. All of the...journal article 2022
- document
-
Pöhlmann, Katharina Margareta Theresa (author), Li, Gang (author), Dam, Abhraneil (author), Wang, Yu Kai (author), Wei, Chun Shu (author), Brietzke, Adrian (author), Papaioannou, G. (author)The mass adoption of automated vehicles in the near future will benefit safety (of occupants and pedestrians), the environment (low emissions), and society (accessibility, on-demand travel). There are, however, still challenges that need to be addressed, with one of the most crucial being motion sickness. In automated vehicles, the interior...conference paper 2022
- document
-
van de Water, W. (author), Dam, Nico (author), Calzavarini, Enrico (author)We study the dispersion of tiny molecular clouds in turbulence by writing patterns in turbulent air and following their deformation in time. The writing is done by fusing O2 and N2 molecules into NO in the focus of a strong ultraviolet laser beam. By crossing several of these laser beams, patterns that have both small and large scales can be...journal article 2022
- document
-
Chaykina, D. (author), Usman, I.N. (author), Colombi, G. (author), Schreuders, H. (author), Tyburska-Pueschel, Beata (author), Wu, Z. (author), Eijt, S.W.H. (author), Bannenberg, L.J. (author), De Wijs, Gilles A. (author), Dam, B. (author)The energy axes of the RBS and ERD data (contained in Figures 2a,b,d,e, and S4) were originally underestimated, and the corrected figures appear below and in the Supporting Information. The change is in the conversion from raw data to the energy scale, which was initially converted incorrectly. The rescaled x-axis does not change the data...journal article 2022
- document
-
Venugopal, A. (author), Egberts, Laurentius H.T. (author), Meeprasert, J. (author), Pidko, E.A. (author), Dam, B. (author), Burdyny, T.E. (author), Sinha, V. (author), Smith, W.A. (author)Finding alternative ways to tailor the electronic properties of a catalyst to actively and selectively drive reactions of interest has been a growing research topic in the field of electrochemistry. In this Letter, we investigate the tuning of the surface electronic properties of electrocatalysts via polymer modification. We show that when a...journal article 2022
- document
-
Colombi, G. (author), De Krom, Tom (author), Chaykina, D. (author), Cornelius, S. (author), Eijt, S.W.H. (author), Dam, B. (author)Rare-earth oxyhydride REOxH3-2x thin films prepared by air-oxidation of reactively sputtered REH2 dihydrides show a color-neutral, reversible photochromic effect at ambient conditions. The present work shows that the O/H anion ratio, as well as the choice of the cation, allow to largely tune the extent of the optical change and its speed. The...journal article 2021
- document
- Cipriani, L. (author), de Vries, Jeroen (author), Stauskis, Gintaras (author), Auweck, Fritz (author), Triboi, Roxana (author), Andreucci, Maria Beatrice (author), Cervera Alonso de Medina, Marina (author), Cancela d’ Abreu, Margarida (author), Freire, Maria (author), Carapinha, Aurora (author), a Conceição Castro, Maria (author), Del Pozo, Cristina (author), Deveikienė, Vaiva (author), Gunnlaugsson, Hermann Georg (author), Fekete, Albert (author), Fetzer, Ellen (author), Fabris, Luca (author), Fingerova, Radmila (author), Gazvoda, Davorin (author), Gkoltsiou, Aikaterini (author), Harmanescu, Mihaela (author), Kamenecki, Monika (author), Koscak Miocic-Stosic, Vesna (author), Melone, Antonella (author), Mertens, Elke (author), Meeres, Sophia (author), Ortacesme, Veli (author), Noortman, Adrian (author), Sárospataki, Máté (author), Stiles, Richard (author), Trolf, Norbert (author), Tóth, Attila (author), Tomic Reljic, Dora (author), Tudora, Ioana (author), Valdés Tejera, Esther (author), Valánszki, István (author), Weckman, Emilia (author), Williams, Tony (author), Tutundzic, Andreja (author), Lambertini, Anna (author), Mihova, Katinka (author), Muru, Toomas (author), Dam, Torben (author), Teqja, Zydi (author) conference paper 2021
- document
-
Griessen, Ronald (author), Dam, B. (author)In many experimental investigations of thermodynamic equilibrium or kinetic properties of series of similar reactions it is found that the enthalpies and entropies derived from Van ′t Hoff or Arrhenius plots exhibit a strong linear correlation. The origin of this Enthalpy-Entropy compensation, which is strongly related to the coalescence...journal article 2021
- document
-
Chaykina, D. (author), De Krom, T. (author), Colombi, G. (author), Schreuders, H. (author), Suter, A. (author), Prokscha, T. (author), Dam, B. (author), Eijt, S.W.H. (author)Thin films of rare-earth metal oxyhydrides, such as yttrium oxyhydrides (YH3-2xOx), show a photochromic effect where the transparency of the films decreases reversibly upon exposure to UV light. However, the exact mechanism behind this effect is unknown. In this paper, we describe the behavior of YH3-2xOx thin films, with different O2-:H-...journal article 2021
- document
-
Bannenberg, L.J. (author), Schreuders, H. (author), Dam, B. (author)Hydrogen detection in a reliable, fast, and cost-effective manner is a prerequisite for the large-scale implementation of hydrogen in a green economy. Thin film Ta<sub>1−y</sub>Pd<sub>y</sub> is presented as an effective optical sensing material with extremely wide sensing ranges covering at least 7 orders of magnitude in hydrogen pressure....journal article 2021
- document
-
Bannenberg, L.J. (author), Schreuders, H. (author), Kim, H.J. (author), Sakaki, Kouji (author), Hayashi, Shigenobu (author), Ikeda, Kazutaka (author), Otomo, Toshiya (author), Dam, B. (author), Asano, Kohta (author)Metal hydrides may play a paramount role in a future hydrogen economy. While most applications are based on nanostructured and confined materials, studies considering the structural response of these materials to hydrogen concentrate on bulk material. Here, using in situ in- and out-of-plane X-ray diffraction and reflectometry, we study the fcc ...journal article 2021
- document
-
Chaykina, D. (author), Nafezarefi, F. (author), Colombi, G. (author), Cornelius, S. (author), Bannenberg, L.J. (author), Schreuders, H. (author), Dam, B. (author)Thin films of rare earth metal oxyhydrides show a photochromic effect, the precise mechanism of which is yet unknown. Here, we made thin films of NdH3-2xOx and show that we can change the band gap, crystal structure, and photochromic contrast by tuning the composition (O2-:H-) via the sputtering deposition pressure. To protect these films...journal article 2021