Photoluminescence, energy transfer and tunable color of Ce3+, Tb3+ and Eu2+ activated oxynitride phosphors with high brightness

Wei Lü; Jiansheng Huo; Yang Feng; Shuang Zhao; Hongpeng You

doi:10.1039/C6DT01652A

Photoluminescence, energy transfer and tunable color of Ce³⁺, Tb³⁺ and Eu²⁺ activated oxynitride phosphors with high brightness

Wei Lü,*^a Jiansheng Huo,^ab Yang Feng,^ab Shuang Zhao^ab and Hongpeng You*^a

* Corresponding authors

^a State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
E-mail: hpyou@ciac.ac.cn, wlv@ciac.ac.cn
Fax: +86-431-85698041
Tel: +86-431-85262798

^b University of the Chinese Academy of Sciences, Beijing 100049, P. R. China

Abstract

New tuneable light-emitting Ca₃Al₈Si₄O₁₇N₄:Ce³⁺/Tb³⁺/Eu²⁺ oxynitride phosphors with high brightness have been prepared. When doped with trivalent cerium or divalent europium they present blue luminescence under UV excitation. The energy transfer from Ce³⁺ to Tb³⁺ and Ce³⁺ to Eu²⁺ ions is deduced from the spectral overlap between Ce³⁺ emission and Tb³⁺/Eu²⁺ excitation spectra. The energy-transfer efficiencies and corresponding mechanisms are discussed in detail, and the mechanisms of energy transfer from the Ce³⁺ to Tb³⁺ and Ce³⁺ to Eu²⁺ ions are demonstrated to be a dipole–quadrupole and dipole–dipole mechanism, respectively, by the Inokuti–Hirayama model. The International Commission on Illumination value of color tuneable emission as well as luminescence quantum yield (23.8–80.6%) can be tuned by controlling the content of Ce³⁺, Tb³⁺ and Eu²⁺. All results suggest that they are suitable for UV light-emitting diode excitation.

Article information

https://doi.org/10.1039/C6DT01652A

Article type

Paper

Submitted

28 Apr 2016

Accepted

13 May 2016

First published

17 May 2016

Download Citation

Dalton Trans., 2016,45, 9676-9683

Permissions

Request permissions

Photoluminescence, energy transfer and tunable color of Ce³⁺, Tb³⁺ and Eu²⁺ activated oxynitride phosphors with high brightness

W. Lü, J. Huo, Y. Feng, S. Zhao and H. You, Dalton Trans., 2016, 45, 9676 DOI: 10.1039/C6DT01652A

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.

Dalton Transactions

Photoluminescence, energy transfer and tunable color of Ce³⁺, Tb³⁺ and Eu²⁺ activated oxynitride phosphors with high brightness

Abstract

Article information

Download Citation

Permissions

Photoluminescence, energy transfer and tunable color of Ce³⁺, Tb³⁺ and Eu²⁺ activated oxynitride phosphors with high brightness

Social activity

Search articles by author

Spotlight

Advertisements