Issue 31, 2016

Optical performance of Mn4+ in a new hexa-coordinated fluorozirconate complex of Cs2ZrF6

Abstract

In this work, a Cs2ZrF6:Mn4+ red phosphor, a novel and efficient supplement for commercial Y3Al5O12:Ce3+ type white light-emitting diodes (WLEDs), is successfully fabricated on a large scale through a cation exchange method using K2MnF6 as the Mn4+ source at ambient temperature. The crystal structure and morphology were characterized using powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS), in detail. The complex is well crystallized in a single-phase with particulate morphology and presents sharp red emissions under blue light illumination. From the aspects of Ra and Tc, the optical performance of a WLED made with the Cs2ZrF6:Mn4+ red phosphor supplement is significantly improved and it can be used for indoor lighting applications.

Graphical abstract: Optical performance of Mn4+ in a new hexa-coordinated fluorozirconate complex of Cs2ZrF6

Supplementary files

Article information

Article type
Paper
Submitted
01 Jun 2016
Accepted
01 Jul 2016
First published
04 Jul 2016

J. Mater. Chem. C, 2016,4, 7443-7448

Optical performance of Mn4+ in a new hexa-coordinated fluorozirconate complex of Cs2ZrF6

Q. Zhou, H. Tan, Y. Zhou, Q. Zhang, Z. Wang, J. Yan and M. Wu, J. Mater. Chem. C, 2016, 4, 7443 DOI: 10.1039/C6TC02254E

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