Growth and physical properties of Ba1-xLaxSnO3 films grown on SrTiO3 substrates by sol-gel method

Chao Shan; Ting Huang; Zhigao Hu; Junhao Chu

doi:10.1117/12.2052095

16 December 2013 Growth and physical properties of Ba_1-xLa_xSnO₃ films grown on SrTiO₃ substrates by sol-gel method

Chao Shan, Ting Huang, Zhigao Hu, Junhao Chu

Proceedings Volume 9068, Eighth International Conference on Thin Film Physics and Applications; 906804 (2013) https://doi.org/10.1117/12.2052095
Event: Eighth International Conference on Thin Film Physics and Applications (TFPA13), 2013, Shanghai, China

Abstract

Perovskite-structured Ba_1-xLa_xSnO₃ (x=0.04, 0.06, 0.08) (BLSO) films were epitaxially grown on SrTiO₃ (001) substrates by a sol-gel method. The microstructure and surface of the films were analyzed by X-ray diffraction and atomic force microscopy, respectively. The results show that the films exhibit preferred orientation along the c-axis without cracks or voids. Optical properties were studied in a wide photon energy range between 1.1 and 5.9 eV by spectroscopic ellipsometry. It was found that the optical band gap of the BLSO films increases gradually from 3.42 to 3.73 eV with increasing La concentration.

Citation Download Citation

Chao Shan, Ting Huang, Zhigao Hu, and Junhao Chu "Growth and physical properties of Ba_1-xLa_xSnO₃ films grown on SrTiO₃ substrates by sol-gel method", Proc. SPIE 9068, Eighth International Conference on Thin Film Physics and Applications, 906804 (16 December 2013); https://doi.org/10.1117/12.2052095

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