Thermal properties of the dominant O – H complex in β-Ga2O3
Source abstract
Abstract
Using infrared absorption spectroscopy of hydrogen passivated β-Ga2O3 the temperature dependence of the dominant O – H vibrational line was measured between 5 and 300 K. With increasing temperature, the vibrational line shifts by Δω = 7.8 cm-1 to lower frequency. This is accompanied by a broadening of the vibrational line from Γ = 0.61 to 8.18 cm-1. The data are discussed in terms of elastic and inelastic phonon scattering and exchange coupling. Moreover, the perturbation of the hydrogen potential is evaluated.
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Research context
OpenAlex topics: Ga2O3 and related materials · ZnO doping and properties · Perovskite Materials and Applications
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Affiliations
Helmholtz-Zentrum Berlin für Materialien und Energie, Institut für Silizium-Photovoltaik 1 , Kekuléstr. 5, D-12489 Berlin, Germany
Cavendish Laboratory, University of Cambridge 2 , JJ Thompson Avenue, Cambridge CB3 0HE, UK
National Institute for Materials Science 3 , Tsukuba 305-0044, Japan
Funding
Alexander von Humboldt-Stiftung
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