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Pb(Er1/2Nb1/2)O3–Pb(Zn1/3Nb2/3)O3–PbTiO3 Single Crystals with High Curie Temperature

Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
Author to whom correspondence should be addressed.
Crystals 2020, 10(1), 22;
Received: 27 December 2019 / Revised: 2 January 2020 / Accepted: 3 January 2020 / Published: 5 January 2020
In this work, 0.15Pb(Er1/2Nb1/2)O3–0.63Pb(Zn1/3Nb2/3)O3–0.22PbTiO3 (15PEN–63PZN–22PT) single crystals with a pure perovskite structure are obtained through the flux method. The phase structure, dielectric, ferroelectric properties and upconversion photoluminescence of the crystals are studied. The ternary crystals along the [110] orientation have a high Curie temperature (Tc = 250 °C) and large coercive field (Ec = 11.0597 kV/cm) which are higher than those of crystals reported previously. Furthermore, the PEN–PZN–PT crystals are produced with a strong green light excited by a 980 nm laser. Being in the range 298–478 K, the emission intensity of all peaks decreases with increase in temperature. The absolute quantum yield (QY) for the crystals is 0.00059%. These excellent properties provide new possibilities for multifunctional materials of optoelectronic devices. View Full-Text
Keywords: PEN–PZN–PT; perovskite; high Curie temperature; upconversion luminescence PEN–PZN–PT; perovskite; high Curie temperature; upconversion luminescence
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Chen, Y.; Xi, Z.; Guo, F.; Fang, P.; Li, X.; Long, W.; He, A.; Zhu, Q. Pb(Er1/2Nb1/2)O3–Pb(Zn1/3Nb2/3)O3–PbTiO3 Single Crystals with High Curie Temperature. Crystals 2020, 10, 22.

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