A new and efficient red phosphor for solid-state lighting: Cs2TiF6:Mn4+

Qiang Zhou; Yayun Zhou; Yong Liu; Zhengliang Wang; Guo Chen; Jinhui Peng; Jing Yan; Mingmei Wu

doi:10.1039/C5TC02290H

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A new and efficient red phosphor for solid-state lighting: Cs₂TiF₆:Mn⁴⁺†

Qiang Zhou,^a Yayun Zhou,^a Yong Liu,^a Zhengliang Wang,*^a Guo Chen,^a Jinhui Peng,^a Jing Yan^b and Mingmei Wu*^b

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* Corresponding authors

^a Key Laboratory of Comprehensive Utilization of Mineral Resource in Ethnic Regions, Joint Research Centre for International Cross-border Ethnic Regions Biomass Clean Utilization in Yunnan, School of Chemistry & Environment, Yunnan Minzu University, Kunming, P. R. China
E-mail: wangzhengliang@foxmail.com

^b MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, P. R. China
E-mail: ceswmm@mail.sysu.edu.cn

Abstract

Cs₂TiF₆:Mn⁴⁺ powder as a novel red phosphor has been successfully fabricated on a large scale through the cation exchange method using K₂MnF₆ as a Mn⁴⁺ source at ambient temperature. The Cs₂TiF₆:Mn⁴⁺ product is well crystallized into a single-phase with a hexagonal micro-rod morphology and presents sharp red emissions under blue light illumination. It can significantly improve R_a and CCT levels of the YAG type white LED used for indoor lighting.

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Article information

DOI: https://doi.org/10.1039/C5TC02290H
Article type: Paper
Submitted: 27 Jul 2015
Accepted: 20 Aug 2015
First published: 20 Aug 2015

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J. Mater. Chem. C, 2015,3, 9615-9619

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A new and efficient red phosphor for solid-state lighting: Cs₂TiF₆:Mn⁴⁺

Q. Zhou, Y. Zhou, Y. Liu, Z. Wang, G. Chen, J. Peng, J. Yan and M. Wu, J. Mater. Chem. C, 2015, 3, 9615 DOI: 10.1039/C5TC02290H

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Journal of Materials Chemistry C