Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

Abstract

The invention of yttrium titanates (Y2Ti2O7) with various exciting properties in electroceramics has created great attention among industrialists and researchers. Improving the materials of pyrochlore oxides with significant properties for future electronic devices became essential. The Y2Ti2O7 is one such cubic pyrochlore at room temperature, having excellent dielectric and luminescence properties. This article comprehensively reviews the basics and state-of-the-art in developing Y2Ti2O7 ceramics. This material is widely used for electronic devices: transducers, capacitors, optoelectronic components, and light modulators. This review focuses on the fabrication methods and crystal structure mechanisms for optimizing functional properties and current challenges. Moreover, the effect of doping elements of Y2Ti2O7-based ceramics is briefly discussed. Also, future perspectives are provided to spotlight new and trending research directions in this materials research.