Optical properties of Mn-doped 0.15Pb(In1/2Nb1/2)O3–0.57Pb(Mg1/3Nb2/3)O3–0.28PbTiO3 single crystal
The refractive indices, extinction coefficients, and transmittance of 1 mol% Mn-doped 0.15Pb(In1/2Nb1/2)O3–0.57Pb(Mg1/3Nb2/3)O3–0.28PbTiO3 (Mn-PIN–PMN–PT) relaxor-based single crystal were investigated. The Mn-PIN–PMN–PT single crystal exhibited a rhombohedral to tetragonal phase transition temperature Trt of 120.3 °C and Curie temperature TC of 152.4 °C. The improved Sellmeier equation for the refractive index was determined by least-squares method, which can be applied to calculate accurately the refractive index over a wide wavelength range from 350 to 5000 nm. The Sellmeier optical coefficients were found to be S0 = 1.178 × 1014 m−2, λ0 = 0.215 µm, E0 = 6.06 eV and Ed = 28.73 eV through fitting the single-term oscillator equation. The transmittance reached about 72% over a wide wavelength from 500 nm to 2.5 µm. The optical band-gap energy Eg of 3.34 eV was obtained from absorption coefficient spectra by use of the Tauc model. The results can offer essential parameters of the Mn-PIN–PMN–PT single crystal for optical device applications.
This study was funded by Nature Science Foundation of China (No. 51372258), Science and Technology Commission of Shanghai Municipality (No. 15441904600), Key Technologies R&D Program (No. 2014YFC0201102), and the Opening Project of Key Laboratory of Inorganic Functional Materials and Devices, Chinese Academy of Sciences (No. KLIFMD201603).
Compliance with ethical standards
Conflict of interest
We declare that we have no conflict of interest because there is no funding received for this work.
- 8.H.S. Luo, G.S. Xu, P.C. Wang, Z.W. Yin, Ferroelectrics. 231, 685–690 (1999)Google Scholar
- 24.S.H. Wemple, M. Didomenico, Appl. Phys. Lett. 3, 1338–1351 (1971)Google Scholar
- 25.J. Tauc, Solid state physics: optical properties of solids (Springer, Dordercht, 1972), p. 372Google Scholar