A novel red-emitting K2Ca(PO4)F:Eu2+ phosphor with a large Stokes shift

H. Daicho; Y. Shinomiya; K. Enomoto; A. Nakano; H. Sawa; S. Matsuishi; H. Hosono

doi:10.1039/C7CC08202A

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A novel red-emitting K₂Ca(PO₄)F:Eu²⁺ phosphor with a large Stokes shift†

H. Daicho,

^a Y. Shinomiya,^a K. Enomoto,^a A. Nakano,^b H. Sawa,^b S. Matsuishi^c and H. Hosono^c

Author affiliations

^a Research & Development Department, Koito Manufacturing Co., 500, Kitawaki, Shimizu-ku, Shizuoka 424-8764, Japan
E-mail: cl_ms@koito.co.jp

^b Department of Applied Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan

^c Materials Research Center for Element Strategy, Tokyo Institute of Technology, 4259-S2-13, Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan

Abstract

We report a K₂CaPO₄F:Eu²⁺ phosphor with a new crystal structure. This phosphor has a large Stokes shift and converts near-ultraviolet light to red luminescence without absorption of other visible light. The mechanism was elucidated by applying a constrained density functional theory to the solved crystal structure.

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Article information

DOI: https://doi.org/10.1039/C7CC08202A
Article type: Communication
Submitted: 24 Oct 2017
Accepted: 27 Nov 2017
First published: 06 Dec 2017

Download Citation

Chem. Commun., 2018,54, 884-887

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A novel red-emitting K₂Ca(PO₄)F:Eu²⁺ phosphor with a large Stokes shift

H. Daicho, Y. Shinomiya, K. Enomoto, A. Nakano, H. Sawa, S. Matsuishi and H. Hosono, Chem. Commun., 2018, 54, 884 DOI: 10.1039/C7CC08202A

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