Optical property of BaTiO[sub]3[/sub] ferroelectric film at room temperature

Yonghua Fu; Xiaoqing Zhang; Zhimou Xu

doi:10.1117/12.843484

30 October 2009 Optical property of BaTiO₃ ferroelectric film at room temperature

Yonghua Fu, Xiaoqing Zhang, Zhimou Xu

Proceedings Volume 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration; 75160F (2009) https://doi.org/10.1117/12.843484
Event: Photonics and Optoelectronics Meetings 2009, 2009, Wuhan, China

Abstract

BaTiO₃ ferroelectric films were prepared on Si(111) substrate by sol-gel method with glacial acetic acid as solvent, and acetylacetone as stabilizer, barium acetate and tetrabutyl titanate as precursor. The photoluminescence of BaTiO₃ ferroelectric films were studied. Intense photoluminescence of amorphous BaTiO₃ ferroelectric films excited by blue light was observed at room temperature (RT). The emission band is in a range of 540nm to 660nm in wavelength. The ferroelectric films annealed (at 673K for 8 hours) had the best photoluminescence property, when the films excited by 450nm line, the peak width is about 30nm from 580nm to 610nm, towards the yellow region. Moreover, the photoluminescence of BaTiO₃ ferroelectric film is stable. The emitting region, peak wavelengths and width are not dependent on excitation wavelength and/or film thickness. The luminescence intensity increases with film thickness increasing, but decreases with the excitation wavelength raising. The crystalline BT ferroelectric films had no properties above.

Citation Download Citation

Yonghua Fu, Xiaoqing Zhang, and Zhimou Xu "Optical property of BaTiO₃ ferroelectric film at room temperature", Proc. SPIE 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration, 75160F (30 October 2009); https://doi.org/10.1117/12.843484

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