Electrical and optical property of ferroelectric BaTiO3:Eu

Yeonjoon Park; Alexander Grichener; Jacob Jensen; Sang H. Choi

doi:10.1117/12.590364

31 March 2005 Electrical and optical property of ferroelectric BaTiO₃:Eu

Yeonjoon Park, Alexander Grichener, Jacob Jensen, Sang H. Choi

Proceedings Volume 5728, Integrated Optics: Devices, Materials, and Technologies IX; (2005) https://doi.org/10.1117/12.590364
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

We studied various electrical and optical properties of Europium (1 atomic %) incorporated BaTiO₃ film on n-Si(100) substrate. The thin film structure was analyzed by X-ray diffraction. Film thickness and optical refractive index were measured with an ellipsometer. P-E hysteresis measurement shows the remnant polarization of 37 micro-C/cm² in BaTiO₃:Eu film. C-V measurements on the pure BaTiO₃ film show recovery of capacitance across sweeping voltage ranges with a narrow transition zone due to the polarization change. On the other hand, C-V and I-V measurements on the BaTiO₃:Eu film show that Europium incorporation increases positively charged states in the BaTiO₃ layer such that BaTiO₃:Eu/n-Si interface behaves like a leaky p-n junction.

Citation Download Citation

Yeonjoon Park, Alexander Grichener, Jacob Jensen, and Sang H. Choi "Electrical and optical property of ferroelectric BaTiO₃:Eu", Proc. SPIE 5728, Integrated Optics: Devices, Materials, and Technologies IX, (31 March 2005); https://doi.org/10.1117/12.590364

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