Blar i NTNU Open på forfatter "Wells, Kristin Høydalsvik"

Viser treff 1-6 av 6

    • Electronic and structural properties of the natural dyes curcumin, bixin and indigo 

      Michels, Leander; Richter, Annika; Chellappan, Rajesh Kumar; Røst, Håkon Ivarssønn; Behsen, Alenka Djarmila; Wells, Kristin Høydalsvik; Leal, Luciano; Santana, Vilany; Blawid, Rosana; da Silva, Geraldo J.; Cooil, Simon; Wells, Justin William; Blawid, Stefan (Peer reviewed; Journal article, 2021)
      An optical, electronic and structural characterisation of three natural dyes potentially interesting for application in organic solar cells, curcumin (C21H20O6), bixin (C25H30O4) and indigo (C16H10N2O2), was performed. ...

    • Kinetics during hydrothermal synthesis of nanosized KxNa1-xNbO3 

      Skjærvø, Susanne Linn; Wells, Kristin Høydalsvik; Van Beek, Wouter; Grande, Tor; Einarsrud, Mari-Ann (Journal article, 2018)
      Hydrothermal synthesis is an efficient method of making nanosized functional oxide materials, and it has also been used to synthesize KxNa1−xNbO3 solid solution, a promising lead-free piezoelectric material. However, the ...

    • Rationalization of hydrothermal synthesis of NaNbO3 by rapid in situ time-resolved synchrotron X-ray diffraction 

      Skjærvø, Susanne Linn; Wells, Kristin Høydalsvik; Sommer, Sanna; Vu, Tuong-Dan; Tolchard, Julian R; van Beek, Wouter; Grande, Tor; Iversen, Bo B.; Einarsrud, Mari-Ann (Journal article; Peer reviewed, 2018)
      In situ monitoring of the formation of crystalline phases during conventional hydrothermal synthesis is experimentally challenging. Here, we report an in situ time-resolved synchrotron X-ray diffraction study during ...

    • Thermal evolution of the crystal structure and phase transitions of KNbO3 

      Skjærvø, Susanne Linn; Wells, Kristin Høydalsvik; Blichfeld, Anders Bank; Einarsrud, Mari-Ann; Grande, Tor (Journal article; Peer reviewed, 2018)
      The thermal evolution of the crystal structure and phase transitions of KNbO3 were investigated by high-temperature powder X-ray diffraction and Rietveld refinement of the diffraction data. Two phase transitions from ...

    • Time-enhanced performance of oxide thermoelectric modules based on a hybrid p-n junction 

      Kanas, Nikola; Bjørk, Rasmus; Wells, Kristin Høydalsvik; Schuler, Raphael; Einarsrud, Mari-Ann; Pryds, Nini; Wiik, Kjell (Peer reviewed; Journal article, 2021)
      The present challenge with all-oxide thermoelectric modules is their poor durability at high temperatures caused by the instability of the metal-oxide interfaces at the hot side. This work explains a new module concept ...

    • Understanding the Hydrothermal Formation of NaNbO3: Its Full Reaction Scheme and Kinetics 

      Skjærvø, Susanne Linn; Ong, Gary K.; Grendal, Ola Gjønnes; Wells, Kristin Høydalsvik; Van Beek, Wouter; Ohara, Koji; Milliron, Delia J.; Tominaka, Satoshi; Grande, Tor; Einarsrud, Mari-Ann (Peer reviewed; Journal article, 2021)
      Sodium niobate (NaNbO3) attracts attention for its great potential in a variety of applications, for instance, due to its unique optical properties. Still, optimization of its synthetic procedures is hard due to the lack ...