Abstract
As a new type of optoelectronic integration multifunctional material, rare earth doped lead-based ferroelectrics have great potential in sensing, detection and information transmission. In order to obtained multifunctional ferroelectric ceramics with high electrical properties, the ternary ferroelectric 0.38Pb(Mg1/3Nb2/3)O3-xPbZrO3-(0.62 − x)PbTiO3 ceramics doped with rare earth Eu ions were sintered by traditional two-step niobate precursor method. Their electrical and optical properties were investigated. It was found that the ceramics exhibited good temperature stability and the morphotropic phase boundary is near x = 0.27, wherein the piezoelectric coefficient d33 and dielectric constant εr reach the desirable values of 574 pC/N and 3740, respectively. Furthermore, the absolute intensity of 5D0 – 7F2 transition of Eu3+ in x = 0.27 ceramics varies with temperature, in which abnormities of the uplifted peaks contained the information of ceramic phase transition. This work provides a new direction for improving the performance of rare earth doped ferroelectrics and expanding their application range.
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