Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal
LIN Yan-Ting1,2, REN Bo1,2, ZHAO Xiang-Yong1, WANG Fei-Fei1,2, WANG Yao-Jin1,2, XU Hai-Qing1, LIN Di1, LUO Hao-Su1
1The State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 2018002Graduate School of the Chinese Academy of Sciences, Beijing 100049
Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal
LIN Yan-Ting1,2, REN Bo1,2, ZHAO Xiang-Yong1, WANG Fei-Fei1,2, WANG Yao-Jin1,2, XU Hai-Qing1, LIN Di1, LUO Hao-Su1
1The State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 2018002Graduate School of the Chinese Academy of Sciences, Beijing 100049
摘要Refractive indices and extinction coefficients of 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3(PMN-0.08PT) single crystal are investigated by variable angle spectroscopic ellipsometry (VASE) at different wavelengths. The parameters relative to the energy band structure are obtained by fitting to the single-oscillator dispersion equation, and the band gap energy is also deduced from the Tauc equation. Similar to most oxygen-octahedra ferroelectrics, PMN-0.08PT has the same dispersion behavior described by the refractive-index dispersion parameters.
Abstract：Refractive indices and extinction coefficients of 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3(PMN-0.08PT) single crystal are investigated by variable angle spectroscopic ellipsometry (VASE) at different wavelengths. The parameters relative to the energy band structure are obtained by fitting to the single-oscillator dispersion equation, and the band gap energy is also deduced from the Tauc equation. Similar to most oxygen-octahedra ferroelectrics, PMN-0.08PT has the same dispersion behavior described by the refractive-index dispersion parameters.
LIN Yan-Ting;REN Bo;ZHAO Xiang-Yong;WANG Fei-Fei;WANG Yao-Jin;XU Hai-Qing;LIN Di;LUO Hao-Su. Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal[J]. 中国物理快报, 2009, 26(7): 77807-077807.
LIN Yan-Ting, REN Bo, ZHAO Xiang-Yong, WANG Fei-Fei, WANG Yao-Jin, XU Hai-Qing, LIN Di, LUO Hao-Su. Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal. Chin. Phys. Lett., 2009, 26(7): 77807-077807.
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