Issue 4, 2021

Rapid aqueous-phase synthesis of highly stable K0.3Bi0.7F2.4 upconversion nanocrystalline particles at low temperature

Abstract

Bismuth-based fluoride nanocrystalline materials are an emerging class of host matrixes for luminescent ions with promising applications in optoelectronic devices and medical diagnosis. However, rapid aqueous-phase synthesis of highly stable bismuth-based fluoride nanocrystals at low temperature (room temperature ∼ 90 °C) is still a significant challenge. Herein we report an ultrafast (1 min only) and economical aqueous method to synthesize lanthanide-doped K0.3Bi0.7F2.4 upconversion nanocrystalline particles at low temperature. The resultant materials show exceptional upconversion luminescence performance under the excitation of a 980 nm near-infrared laser. More importantly, these fluoride nanocrystalline particles show excellent stability against high temperature up to 200 °C, high excitation power density (80 W cm−2) and prolonged water soaking (60 days or more). The proposed simple synthesis route, rare-earth free fluoride matrix, commendable upconversion luminescence performance and excellent chemical and thermal stability opens the door to access these lanthanide-doped K0.3Bi0.7F2.4 upconversion nanocrystalline particles for anti-counterfeiting and other daily applications.

Graphical abstract: Rapid aqueous-phase synthesis of highly stable K0.3Bi0.7F2.4 upconversion nanocrystalline particles at low temperature

Supplementary files

Article information

Article type
Research Article
Submitted
27 Oct 2020
Accepted
07 Dec 2020
First published
08 Dec 2020

Inorg. Chem. Front., 2021,8, 1039-1048

Rapid aqueous-phase synthesis of highly stable K0.3Bi0.7F2.4 upconversion nanocrystalline particles at low temperature

D. Chen, J. Bi, W. Wang, X. Wang, Y. Zhang and Y. Liang, Inorg. Chem. Front., 2021, 8, 1039 DOI: 10.1039/D0QI01284J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements