Preparation and properties of highly c-axis-oriented Sr0.6Ba0.4Nb2O6 thin films by the sol-gel process

Zhiru Shen; Hui Ye; Tong Zou; Bing Guo

doi:10.1117/12.574733

17 January 2005 Preparation and properties of highly c-axis-oriented Sr_0.6Ba_0.4Nb₂O₆ thin films by the sol-gel process

Zhiru Shen, Hui Ye, Tong Zou, Bing Guo

Author Affiliations +

Proceedings Volume 5644, Optoelectronic Devices and Integration; (2005) https://doi.org/10.1117/12.574733
Event: Photonics Asia, 2004, Beijing, China

Abstract

Highly oriented ferroelectric strontium barium niobate (Sr_0.6Ba_0.4Nb₂O₆) thin films were prepared on P-type Si(100) substrate by the Sol-Gel process. The XRD patterns of the SBN films show that SBN film prepared by using NbCl5, KOH as raw materials performed a highly c-axis preferred orientation perpendicular to the Si substrate, better than films that was prepared using Nb(OC₂H₅)₅ as starting agents. It may be duo to the existence of the potassium ion that not be filtered out completely during the preparation of the niobium alkoxide. The characteristics of D-F and C-V curves were obtained for SBN/Si film. The film exhibits high dielectric constant. In order to investigate ferroelectric characteristics further, the P-E loops of the SBN/Pt/Si were also measured. The films show better optical properties, transmittance of Sr_0.6Ba_0.4Nb₂O₆ films on MgO(001) and SiO₂ substrates was more than 60% at the range from 450 to 850nm, refractive index was measured to be 2.14 and 2.12 on the MgO and SiO₂ substrate at 633nm respectively.

Citation Download Citation

Zhiru Shen, Hui Ye, Tong Zou, and Bing Guo "Preparation and properties of highly c-axis-oriented Sr_0.6Ba_0.4Nb₂O₆ thin films by the sol-gel process", Proc. SPIE 5644, Optoelectronic Devices and Integration, (17 January 2005); https://doi.org/10.1117/12.574733

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