Tunable white light emission from a single-host phosphor Gd2MoO6: Eu3+, Dy3+ for near ultraviolet light-emitting diodes

Sun Fuqiang; Xie Rongrong; Guan LiZhang Canyuan

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Tunable white light emission from a single-host phosphor Gd2MoO6: Eu3+, Dy3+ for near ultraviolet light-emitting diodes

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摘要

A series of Eu3+ and Dy3+ singly and doubly doped Gd2MoO6 phosphors were synthesized with solid state reactions. The X-ray powder diffraction analysis of phosphors shows that substitution of Eu3+ and Dy3+ does not change the host structure of phosphors. The absorption spectra measurements show that un-doped Gd2MoO6 can absorb near ultraviolet light without any visible light emission. However, energy absorbed by Gd2MoO6 can be effectively transferred to doped Eu3+ and Dy3+ and makes them emit blue, yellow, and red light, respectively. White light can be obtained by combining blue, yellow, and red emission. The doping of Dy3+ plays a major role for the formation of white light. The introduction of Eu3+ can remarkably decrease the color temperature of the white light emission. The measurement of the temperature-dependent luminescent properties indicates that the phosphors present a good thermal stability. Our investigation indicates that Gd2MoO6: Eu3+, Dy3+ is a potential candidate for white light emitting diodes applications. It also provides a new sight for the achievement of white light emission.

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《Journal of Materials Research》 |2017年第3期|539-546|共8页
作者
Sun Fuqiang; Xie Rongrong; Guan LiZhang Canyuan;
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作者单位

Guangdong Pharmaceut Univ, Sch Pharm, Guangzhou 510006, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类工程材料学;
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Tunable white light emission from a single-host phosphor Gd2MoO6: Eu3+, Dy3+ for near ultraviolet light-emitting diodes

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