Browsing Publikasjoner fra CRIStin - SINTEF AS by Author "Dahl-Hansen, Runar Plunnecke"
Now showing items 1-6 of 6
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Electrochemically driven degradation of chemical solution deposited ferroelectric thin-films in humid ambient
Dahl-Hansen, Runar Plunnecke; Polfus, Jonathan Marc; Vøllestad, Einar; Akkopru-Akgun, Betul; Denis, Lyndsey; Coleman, Kathleen; Tyholdt, Frode; Trolier-Mckinstry, Susan E; Tybell, Per Thomas Martin (Peer reviewed; Journal article, 2020)The ambient humidity significantly accelerates the degradation of lead zirconate titanate (PZT) films in microelectromechanical systems; the cause of such degradation is under debate. Here, it is shown that the degradation ... -
High-quality dense 3D point clouds with active stereo and a miniaturizable interferometric pattern projector
Thorstensen, Jostein Bruun; Thielemann, Jens T; Risholm, Petter; Gjessing, Jo; Dahl-Hansen, Runar Plunnecke; Tschudi, Jon (Peer reviewed; Journal article, 2021)We have built and characterized a compact, simple and flexible 3D camera based on interferometric fringe projection and stereo reconstruction. The camera uses multi-frame active stereo as basis for 3D reconstruction, ... -
High-Rate Epitaxial Growth of Silicon Using Electron Beam Evaporation at High Temperatures
Stange, Marit Synnøve Sæverud; Sunde, Tor Olav Løveng; Dahl-Hansen, Runar Plunnecke; Rajput, Kalpna; Graff, Joachim Seland; Belle, Branson Delano; Ulyashin, Alexander (Peer reviewed; Journal article, 2023)This paper describes the high-rate (~1.5 μm/min) growth of Si films on Si supporting substrates with (100) crystallographic orientation at 600 °C, 800 °C, and 1000 °C in a vacuum environment of ~1 × 10−5 mbar using electron ... -
On the Evolution of Stress and Microstructure in Radio Frequency-Sputtered Lead-Free (Ba,Ca)(Zr,Ti)O3 Thin Films
Dahl-Hansen, Runar Plunnecke; Stange, Marit Synnøve Sæverud; Sunde, Tor Olav Løveng; Ræder, Johan Henrik; Rørvik, Per Martin Ljønes (Peer reviewed; Journal article, 2024)Thin-film piezoelectrics are widely investigated for actuators and energy harvesters, but there are few alternatives to toxic lead zirconate titanate. Biocompatible Ca- and Zr-modified BaTiO3 (BCZT) is one of the most ... -
Performance and reliability of PZT-based piezoelectric micromirrors operated in realistic environments
Dahl-Hansen, Runar Plunnecke; Tyholdt, Frode; Tybell, Per Thomas Martin (Chapter, 2018)The number of application areas for piezoelectric micro electromechanical systems based on PZT have increased rapidly over the years. Thus, to continue the development towards commercial deployment, characterizing lifetime ... -
Reliable Pb(Zr,Ti)O3-based thin film piezoelectric micromirrors for space-applications
Dahl-Hansen, Runar Plunnecke; Gjessing, Jo; Mardilovich, Peter; Fragkiadakis, Charalampos; Thorstensen, Jostein Bruun (Peer reviewed; Journal article, 2022)Although Pb(Zr,Ti)O3 (PZT) piezoelectric thin films are finding widespread applications on Earth, it is yet unclear if they are suitable for space-related applications. In space, their long-term reliability is a significant ...