Optical properties of BiCrxFe1-xO3 films grown by sol-gel method

摘要：

The BiCrxFe1-xO3 thin films were fabricated on Si substrate by sol-gel method with x range from 0 to 0.05. X-ray diffraction analysis shows that both pure BiFeO3 thin film and Cr-doped BiFeC>3 thin films have rhombohedral structure with space group R3c. Moreover, the influence of different values of x on the extinction coefficient and refractive index were investigated in order to exploit their possible application in optoelectronic devices. The optical constants of the Cr-doped BiFeO3 thin films in the wavelength range 500-1100 nm were obtained by spectroscopic ellipsometry, and the band-gap energy of BiCr0.03Fe0. 97O3 was found to be 2.40 ±0.02 eV, and that of BiCr0.05Fe0. 95O3 was 230 +0.02 eV.

作者: H Deng H M Deng D J Huang L P Zhu P X Yang

作者单位: Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronics, Eas Key Laboratory for Material Microstructures of Shanghai University, Shanghai University, 99 Shangda

会议类型: 国际会议

会议名称: 3rd International Photonics & OptoElectronics Meetings(第三届国际光子与光电子学会议 POEM 2010)

会议地点: 武汉

会议语种:英文

页码: 1-5

在线出版日期: 2010-11-03（万方平台首次上网日期，不代表论文的发表时间）