Structure and electrical properties of La2O3-doped (K,Na,Li)(Nb,Ta)O3-(Bi,Na)TiO3 ceramics

Bingsen Wang; Junjun Wang; Jiaqi Li; Miao Yang; Minghao Huang; Tianyi Ma; Yu Tian; Fengmin Wu

doi:10.1142/S2010135X23500108

Journals >Journal of Advanced Dielectrics >Volume 13 >Issue 2 >Page 2350010 > Article

Journal of Advanced Dielectrics
Vol. 13, Issue 2, 2350010 (2023)

Structure and electrical properties of La₂O₃-doped (K,Na,Li)(Nb,Ta)O₃-(Bi,Na)TiO₃ ceramics

Bingsen Wang¹, Junjun Wang^1、aff***, Jiaqi Li¹, Miao Yang², Minghao Huang¹, Tianyi Ma¹, Yu Tian¹, and Fengmin Wu¹

Author Affiliations

¹School of Science, Harbin University of Science and Technology, Harbin 150080, P. R. China

²School of Measurement and Communication Engineering, Harbin University of Science and Technology, Harbin 150080, P. R. China

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DOI: 10.1142/S2010135X23500108 Cite this Article

Bingsen Wang, Junjun Wang, Jiaqi Li, Miao Yang, Minghao Huang, Tianyi Ma, Yu Tian, Fengmin Wu. Structure and electrical properties of La₂O₃-doped (K,Na,Li)(Nb,Ta)O₃-(Bi,Na)TiO₃ ceramics[J]. Journal of Advanced Dielectrics, 2023, 13(2): 2350010 Copy Citation Text

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Abstract

In this paper, Lead-free based on 0.97(

K_{0.48}

{Na}_{0.48}

{Li}_{0.04}

)(

{Nb}_{0.8}

{Ta}_{0.2}

)O₃–0.03

{Bi}_{0.5}

{Na}_{0.5}

TiO₃ with additives La₂O₃ (1, 2, 3, 4 wt.%) was prepared by the solid reaction method, and the effect of La dopant on the structural and electrical properties is investigated. The result indicates La dopant considerably decreases the optical band gap compared to the undoped composition. On the other hand, La doping leads to the higher dielectric property in a wider temperature, providing possibilities and directions for the subsequent development of ferroelectric photovoltaic materials with electrical properties and low optical band gap in a dramatical manner.

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