12 October 2009 Optical properties of BiFeO3 films grown by Sol-gel method
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Abstract
BiFeO3 thin films on different substrates were prepared via Sol-gel method. X-ray diffraction patterns indicated all the films were well-crystallized and gave X-ray peaks corresponding to BiFeO3. The influence of different annealing temperatures and substrates to the Raman spectra was investigated. The Raman spectra of the 750 °C-annealed films gave almost the completed E modes. Compared with the film deposited on Si substrate, the positions of E modes peaks in Raman spectra of the film deposited on LNO-coated Si substrate shifted to higher frequency regions and the existence of the stress between the BiFeO3 films and the substrates was considered to cause the shift.
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Gang Sheng, Long Zeng, Zhipeng Liu, Zhenlun Zhang, Pingxiong Yang, "Optical properties of BiFeO3 films grown by Sol-gel method", Proc. SPIE 7518, Photonics and Optoelectronics Meetings (POEM) 2009: Solar Cells, Solid State Lighting, and Information Display Technologies, 75180R (12 October 2009); doi: 10.1117/12.840334; https://doi.org/10.1117/12.840334
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