Hydrogen complexes in epitaxial BaTiO3 thin films

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, i...

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Bibliographic Details
Published in:Applied physics letters 1997-07, Vol.71 (3), p.327-329
Main Authors: Yi, Gyu-Chul, Block, Bruce A., Wessels, Bruce W.
Format: Article
Language:English
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Summary: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.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.119529