Preparation and characterization of nanosized GdxBi0.95-x VO4：0.05Eu3+ solid solution as red phosphor

doi:10.1088/1674-1056/23/10/104224

›› 2014, Vol. 23 ›› Issue (10): 104224-104224.doi: 10.1088/1674-1056/23/10/104224

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Preparation and characterization of nanosized Gd_xBi_0.95-x VO₄：0.05Eu³⁺ solid solution as red phosphor

易娟^a, 邱建备^a, 王宇岸^b, 周大成^a

a School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;
b Shenzhen Water (Group) Co. Ltd., Shenzhen 518000, China

收稿日期:2014-01-19 修回日期:2014-03-15 出版日期:2014-10-15 发布日期:2014-10-15
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2011CB211708), the National Natural Science Foundation of China (Grant Nos. 51272097, 61265004, and 61307111), and the Natural Science Foundation of Yunnan Province, China (Grant No. 2012FD009).

Preparation and characterization of nanosized Gd_xBi_0.95-x VO₄：0.05Eu³⁺ solid solution as red phosphor

Yi Juan (易娟)^a, Qiu Jian-Bei (邱建备)^a, Wang Yu-An (王宇岸)^b, Zhou Da-Cheng (周大成)^a

a School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;
b Shenzhen Water (Group) Co. Ltd., Shenzhen 518000, China

Received:2014-01-19 Revised:2014-03-15 Online:2014-10-15 Published:2014-10-15
Contact: Qiu Jian-Bei E-mail:qiu@kmust.edu.cn
About author:42.70.-a
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2011CB211708), the National Natural Science Foundation of China (Grant Nos. 51272097, 61265004, and 61307111), and the Natural Science Foundation of Yunnan Province, China (Grant No. 2012FD009).

摘要/Abstract

摘要： A complete solid solutions with monophasic zircon-type structure of vanadates of formula Gd_xBi_0.95-xVO₄:0.05Eu³⁺ (x=0-0.95) are synthesized by combined method of co-precipitation and hydrothermal synthesis. Their microstructures and morphologies are characterized by X-ray powder diffraction and transmission electronic microscope, and the results show that each of all the samples has a monophasic zircon-type structure. The absorption spectrum of the prepared phosphor shows a blue-shift of the fundamental absorption band edge with increasing the gadolinium content. Under UV-light and visible-light excitation, all the prepared phosphors show the typical luminescence properties of Eu³⁺ in the zircon-type structure. The emission intensity of Gd_xBi_0.95-xVO₄:0.05Eu³⁺ (x=0.55) is strongest in all samples under UV-light and visible-light excitations. Finally, the mechanisms of luminescence of Eu³⁺ in the Gd_xBi_0.95-xVO₄:0.05Eu³⁺ (x=0-0.95) solid solutions are analyzed and discussed.

关键词: red phosphor, solid solution, monophase, band gap

Abstract: A complete solid solutions with monophasic zircon-type structure of vanadates of formula Gd_xBi_0.95-xVO₄:0.05Eu³⁺ (x=0-0.95) are synthesized by combined method of co-precipitation and hydrothermal synthesis. Their microstructures and morphologies are characterized by X-ray powder diffraction and transmission electronic microscope, and the results show that each of all the samples has a monophasic zircon-type structure. The absorption spectrum of the prepared phosphor shows a blue-shift of the fundamental absorption band edge with increasing the gadolinium content. Under UV-light and visible-light excitation, all the prepared phosphors show the typical luminescence properties of Eu³⁺ in the zircon-type structure. The emission intensity of Gd_xBi_0.95-xVO₄:0.05Eu³⁺ (x=0.55) is strongest in all samples under UV-light and visible-light excitations. Finally, the mechanisms of luminescence of Eu³⁺ in the Gd_xBi_0.95-xVO₄:0.05Eu³⁺ (x=0-0.95) solid solutions are analyzed and discussed.

Key words: red phosphor, solid solution, monophase, band gap

中图分类号: (Optical materials)

42.70.-a

易娟, 邱建备, 王宇岸, 周大成. Preparation and characterization of nanosized Gd_xBi_0.95-x VO₄：0.05Eu³⁺ solid solution as red phosphor[J]. , 2014, 23(10): 104224-104224.

Yi Juan (易娟), Qiu Jian-Bei (邱建备), Wang Yu-An (王宇岸), Zhou Da-Cheng (周大成). Preparation and characterization of nanosized Gd_xBi_0.95-x VO₄：0.05Eu³⁺ solid solution as red phosphor[J]. Chin. Phys. B, 2014, 23(10): 104224-104224.

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Preparation and characterization of nanosized Gd_xBi_0.95-x VO₄：0.05Eu³⁺ solid solution as red phosphor

Preparation and characterization of nanosized Gd_xBi_0.95-x VO₄：0.05Eu³⁺ solid solution as red phosphor

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