Effect of Li+ addition on crystal structure and electrical conduction of highly defective La1/3NbO3 perovskite

Kai Yun Yang, Kuan Zong Fung

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The Li+ solubility, crystal structure and electrical properties of the Li3xLa1/3-xNbO3 solid solution with A-site deficient perovskite structure were examined using X-ray diffractometer (XRD), scanning electron microscope (SEM), and alternating current (AC) impedance technique. XRD and SEM results showed that the limit of the Li+ solubility in this solid solution was found to be within 25 at%. Over this limit, the second phase of LiNbO3 was observed. With increasing the Li+ content (3x), the crystal structure of La1/3NbO3 changed from orthorhombic via tetragonal to cubic symmetry. The AC impedance analysis showed that the characteristic of Li+ conduction was present in the Li3xLa1/3-xNbO3 solid solution and there was a maximum conductivity of 7.21×10-5 S cm-1 at 3x=0.05.

Original languageEnglish
Pages (from-to)393-399
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume69
Issue number2-3
DOIs
Publication statusPublished - 2008 Feb

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Effect of Li<sup>+</sup> addition on crystal structure and electrical conduction of highly defective La<sub>1/3</sub>NbO<sub>3</sub> perovskite'. Together they form a unique fingerprint.

Cite this