Rare-Earth Borate Polymorphs

  • ChemPubSoc Europe Logo
  • Author: Andrei Dragan
  • Published Date: 26 May 2017
  • Source / Publisher: Chemistry – An Asian Journal/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: Rare-Earth Borate Polymorphs

Meta-stable rare-earth or bismuth borates, key components of solid-state laser sources, were originally obtained under high-temperature and high-pressure conditions. Progress toward their synthesis has been made in 2012 [1],  when δ-Bi1-xREB3O6 (RE = La, Ce, Pr, Nd) was formed at ambient pressure. These borates showed a strong second harmonic generation, which means that they could effectively expand the laser frequency range.

Rihong Cong, Chongqing University, China, and colleagues have shown that β-Gd1-xBixB3O6 also easily forms at ambient pressure. The thermal stability of these borates could be manipulated by mutual doping between rare earth and bismuth ions, which the team found via a systematic photoluminescence study on the high-pressure phase.

This study leads to better understanding of the synthetic chemistry of borates. In addtion, it helps to explore the optical performance of high-pressure polymorphs of borates. The rational co-doping of β-Gd1-xBixB3O6 with Tb3+ and Eu3+ creates color-tunable and bright emissions.



Article Views: 1522

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter

A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH