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Issue 23, 2015
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Recent progress in luminescence tuning of Ce3+ and Eu2+-activated phosphors for pc-WLEDs

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Abstract

Nowadays, phosphor converted white light-emitting diodes (pc-WLEDs) have been widely used in solid-state lighting and display areas due to their superior lifetime, efficiency, and reliability as well as significant reduction in power consumption. Phosphors are indispensable components of pc-WLED devices, and their luminescence properties determine the quality of WLED lighting and displays. In order to further achieve high luminous efficacy, chromatic stability, and color-rending properties in pc-WLEDs, much effort has been focused on improving current pc-WLED phosphors and developing novel pc-WLED phosphors recently. This review article concerns commonly used rare earth ion (Eu2+ and Ce3+) activated inorganic phosphors, highlighting the important effect of spectral tuning via local structural variations on improving the luminescence performance of phosphors. The main spectral tuning strategies are discussed in detail and summarized, including (1) doping level control; (2) cationic substitution; (3) anionic substitution; (4) cationic–anionic substitution; (5) the crystal-site engineering approach; (6) mixing of nanophases.

Graphical abstract: Recent progress in luminescence tuning of Ce3+ and Eu2+-activated phosphors for pc-WLEDs

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Publication details

The article was received on 02 Dec 2014 and first published on 30 Sep 2015


Article type: Review Article
DOI: 10.1039/C4CS00446A
Chem. Soc. Rev., 2015,44, 8688-8713

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    Recent progress in luminescence tuning of Ce3+ and Eu2+-activated phosphors for pc-WLEDs

    G. Li, Y. Tian, Y. Zhao and J. Lin, Chem. Soc. Rev., 2015, 44, 8688
    DOI: 10.1039/C4CS00446A

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