Spectroscopy and Spectral Analysis, Volume. 35, Issue 4, 889(2015)

Synthesis and Luminescence Properties of BiOCl:Dy3+ Phosphors for NUV Excited White Light-Emitting Diodes

KUANG Qing-liang*, LI Yong-jin, QIU Jian-bei, YIN Zhao-yi, YANG Zheng-wen, SONG Zhi-guo, WAN Rong-hua, LIU Qun, and ZHOU Yu-ting
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    In the present paper,we reported the luminescence properties of BiOCl:Dy3+ and BiOCl:Dy3+,Li+ phosphor synthesized by conventional solid state method.X-ray diffraction (XRD) and excitation and emission spectroscopy were used to characterize the samples.Results show that pure tetragonal BiOCl:Dy3+ crystals can be synthesized successfully at 500 ℃,and Li+ ion dopant improves the crystallinity of samples furtherly.Under near UV light excitation,the samples give the characteristic luminescence of Dy3+ ions located at 478 (blue) and 574 nm (yellow),which show a low yellow-to-blue intensity ratio (Y/B) of Dy3+ emission and white light emission.Moreover,codoping of Li+ ion can realize the enhancement of emission intensity and the adjustment of emission color.The characteristics of BiOCl:Dy3+ phosphor,low temperature preparation,good near ultraviolet excitation and white light emission make it to a promising near-ultraviolet WLED phosphor.

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    KUANG Qing-liang, LI Yong-jin, QIU Jian-bei, YIN Zhao-yi, YANG Zheng-wen, SONG Zhi-guo, WAN Rong-hua, LIU Qun, ZHOU Yu-ting. Synthesis and Luminescence Properties of BiOCl:Dy3+ Phosphors for NUV Excited White Light-Emitting Diodes[J]. Spectroscopy and Spectral Analysis, 2015, 35(4): 889

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    Paper Information

    Received: Apr. 13, 2014

    Accepted: --

    Published Online: Apr. 20, 2015

    The Author Email: Qing-liang KUANG (kuangqingliang@163.com)

    DOI:10.3964/j.issn.1000-0593(2015)04-0889-05

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