Hydrogen complexes in epitaxial BaTiO3 thin films
- 21 July 1997
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 71 (3) , 327-329
- https://doi.org/10.1063/1.119529
Abstract
Hydrogen complexes in epitaxial BaTiO3 thin films are investigated using Fourier transform infrared spectroscopy. Both undoped and Er-doped layers were grown using low-pressure metal–organic chemical vapor deposition. From the infrared spectra of the undoped and Er-doped films grown at 750–800 °C, infrared absorption was observed at 3486 cm−1. The absorption peak is attributed to a vibrational mode of O–H in BaTiO3. Moreover, the Er-doped layers showed additional absorption peaks at 2905 and 2964 cm−1. The peaks are ascribed to the vibrational modes of C–H complexes in the Er-doped layers.Keywords
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