Effect of substitution of Dy3+ on dielectric constant and reliability of anti-ferroelectric PLZT

  • Choi, Jeoung Sik; 
  • Kim, Dong Chul; 
  • Shin, Hyo Soon; 
  • Yeo, Dong Hun; 
  • Lee, Joon Hyung
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초록

The study aimed to investigate the impact of oxygen vacancies on the reliability of perovskite-structured ceramics. In particular, the focus was on anti-ferroelectric (PbLa)(ZrTi)O-3, commonly known as PLZT, which exhibits excellent DC-bias characteristics, making it a promising material for high-power capacitors. To address the issue of oxygen vacancies, Dy3+ was introduced as a donor by substituting it into (Pb0.82La0.12)(Zr0.86Ti0.14)O-3. As the substitution of Dy3+ increased, there was a decrease in the dielectric constant. However, this was accompanied by an increase in both breakdown voltage and reliability characteristics.

키워드

Defects; Perovskites; Dy; Electrical properties; DC ELECTRICAL DEGRADATION; PEROVSKITE-TYPE TITANATES; DEFECT CHEMISTRY; MICROSTRUCTURE; DYSPROSIUM; CERAMICS; MODEL
제목
Effect of substitution of Dy3+ on dielectric constant and reliability of anti-ferroelectric PLZT
저자
Choi, Jeoung Sik; Kim, Dong Chul; Shin, Hyo Soon; Yeo, Dong Hun; Lee, Joon Hyung
DOI
10.1557/s43579-023-00443-1
발행일
2023-12
유형
Article
저널명
MRS Communications
권
13
호
6
페이지
1260 ~ 1265