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Luminescence of Tb(3)Al(5)O(12 )phosphors co-doped with Ce3+/Gd3+ for white light-emitting diodes
Yu-Guo Yang1,2; Lei Wei1,2; Jian-Hua Xu1,2; Hua-Jian Yu1,2; Yan-Yan Hu1,2; Hua-Di Zhang1,2; Xu-Ping Wang1,2; Bing Liu1,2; Cong Zhang1,2; Qing-Gang Li1,3
2019-06-14
Source PublicationBEILSTEIN JOURNAL OF NANOTECHNOLOGY
ISSN2190-4286
Volume10Pages:1237-1242
Abstract

Tb2.96-xCe0.04GdxAl5O12 phosphors were synthesized through solid-state reactions. The influence of Gd3+ on the luminescence was investigated. Under the excitation at 460 nm, Tb2.96Ce0.04Al5O12 shows the characteristic emission band of Ce3+ with a peak wavelength at about 554 inn. After co-doping Gd3+ into Tb2.96Ce0.04Al5O12, the peak wavelength of the Ce3+ emission band shifts to longer wavelengths, which is induced by the increasing crystal field splitting. However, the Ce3+ emission intensity also decreases because the substitution of Tb3+ with Gd3+ causes lattice deformation and generates numerous structural and chemical defects. By comparing the light parameters of white light-emitting diodes (WLEDs) containing Y2.96Ce0.04Al5O12, Tb2.96Ce0.04Al5O12 and Tb2.81Ce0.04Gd0.15Al5O12 phosphors, we can find that the WLED containing the Tb2.81Ce0.04Gd0.15Al5O12 phosphor generates warmer light than the WLEDs containing Y2.96Ce0.04Al5O12 and Tb2.96Ce0.04Al5O12 phosphors. Moreover, the WLEDs fabricated by integrating a blue LED chip and Ce3+/Gd3+-co-doped Tb3Al5O12 phosphors show outstanding colour stability when driven under different currents.

KeywordLuminescence Tb3al5o12 ce3+/gd3+ White Light-emitting Diodes (Wleds)
DOI10.3762/bjnano.10.123
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
PublisherBEILSTEIN-INSTITUT, TRAKEHNER STRASSE 7-9, FRANKFURT AM MAIN, 60487, GERMANY
EI Accession NumberWOS:000471674600001
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Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Corresponding AuthorYu-Guo Yang; Bing Liu
Affiliation1.Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
2.Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
3.Qilu University of Technology (Shandong Academy of Sciences), Advanced Materials Institute, Shandong Provincial Key Laboratory of High Strength Lightweight Metallic Materials, Jinan 250014, China
Recommended Citation
GB/T 7714
Yu-Guo Yang,Lei Wei,Jian-Hua Xu,et al. Luminescence of Tb(3)Al(5)O(12 )phosphors co-doped with Ce3+/Gd3+ for white light-emitting diodes[J]. BEILSTEIN JOURNAL OF NANOTECHNOLOGY,2019,10:1237-1242.
APA Yu-Guo Yang.,Lei Wei.,Jian-Hua Xu.,Hua-Jian Yu.,Yan-Yan Hu.,...&Qing-Gang Li.(2019).Luminescence of Tb(3)Al(5)O(12 )phosphors co-doped with Ce3+/Gd3+ for white light-emitting diodes.BEILSTEIN JOURNAL OF NANOTECHNOLOGY,10,1237-1242.
MLA Yu-Guo Yang,et al."Luminescence of Tb(3)Al(5)O(12 )phosphors co-doped with Ce3+/Gd3+ for white light-emitting diodes".BEILSTEIN JOURNAL OF NANOTECHNOLOGY 10(2019):1237-1242.
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