Optical properties of BaTiO3 and Mn:BaTiO3 thin films deposited on fused quartz and silicon substrates using a sol-gel method

Yawei Li; Jing-Lan Sun; Xiangjian Meng; Weifeng Zhang; Jun-Hao Chu

doi:10.1117/12.607556

8 December 2004 Optical properties of BaTiO₃ and Mn:BaTiO₃ thin films deposited on fused quartz and silicon substrates using a sol-gel method

Yawei Li, Jing-Lan Sun, Xiangjian Meng, Weifeng Zhang, Jun-Hao Chu

Author Affiliations +

Proceedings Volume 5774, Fifth International Conference on Thin Film Physics and Applications; (2004) https://doi.org/10.1117/12.607556
Event: Fifth International Conference on Thin Film Physics and Applications, 2004, Shanghai, China

Abstract

The BaTiO₃ and Mn:BaTiO₃ thin films were fabricated on fused quartz and Si(111) substrates by a sol-gel method. The crystal structures of the samples were characterized by x-ray diffraction. It is shown that the samples are both polycrystalline thin films and possess cubic structure. The Mn-doping has no obvious effect on the crystal structure. The optical properties of the thin films were studied by transmitted spectrum technique or by spectroscopic ellipsometry depending on the substrate used. The transmitted spectrum shows that the absorption edge of the Mn-doping films has red shift compared with the undoping films. The energy gaps calculated from the transmitted spectrum are 3.68 and 3.39eV for undoping and Mn-doping samples, respectively. The results of spectroscopic ellipsometry shows that the refractive index of the Mn:BaTiO₃ thin film is bigger than that of the BaTiO₃ thin film. Which the change of energy gap and refractive index caused by Mn-doping can be explained by the Sellmeier Oscillator model.

Citation Download Citation

Yawei Li, Jing-Lan Sun, Xiangjian Meng, Weifeng Zhang, and Jun-Hao Chu "Optical properties of BaTiO₃ and Mn:BaTiO₃ thin films deposited on fused quartz and silicon substrates using a sol-gel method", Proc. SPIE 5774, Fifth International Conference on Thin Film Physics and Applications, (8 December 2004); https://doi.org/10.1117/12.607556

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available