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Luminescence Mechanism and Thermal Stabilities of a White Silicate Phosphor for Multifunctional Applications
Sun, QS; Li, XM; Du, YD; Zhao, B; Li, H; Huang, Y; Ci, ZP; Zhang, JC; Ma, J; Wang, YH; Huang Y(黄艳)
2017
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
EISSN1551-2916
Volume100Issue:1Pages:193-203
SubtypeArticle
AbstractA series of Dy3+-doped Sr2(1-y)Ca2yY8(SiO4)(6)O-2 (0 y 1) white phosphors were synthesized by the solid-state reaction. All samples crystallize into a hexagonal crystal system with space group P6(3)/m (176) by the determination of XRD Rietveld refinements. With the change in Ca/Sr ratio, the crystal environment of active ions is lightly affected. Upon excitation by UV/VUV/cathode ray sources, the samples present an efficient white light emission with significant differences in the blue/yellow ratio of Dy3+ characteristic transitions. Based on luminescence properties, decay times and thermal properties, the interesting phenomenon with excitation energy increasing from UV to electron beam can be reasonably explained by a potential mechanism we proposed. With the introduction of Bi3+, the white emission intensity is rapidly enhanced and the optimal intensity reaches to 3.75 times compared with the single doped Dy3+ sample. To evaluate the applicability of this phosphor, we packaged two light-emitting diode devices and measured the actual luminescence efficacies and CIE chromaticity coordinates. These results indicate that the silicate phosphors have the potential for multifunctional application in ultraviolet-based light-emitting diodes, mercury-free lamps, and field-emission displays.
Keywordluminescence optical materials/properties phosphors thermal properties
DOI10.1111/jace.14480
WOS KeywordLIGHT-EMITTING-DIODES ; FIELD-EMISSION DISPLAYS ; SOL-GEL SYNTHESIS ; CRYSTAL-STRUCTURE ; UV-LEDS ; PHOTOLUMINESCENCE ; TEMPERATURE ; GREEN ; CE3+ ; TB3+
Indexed BySCI ; EI ; SCOPUS
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000393862800023
EI Accession Number20164402967257
EI KeywordsLight - Light emitting diodes - Luminescence - Phosphors - Rietveld refinement - Silicates - Solid state reactions - Thermodynamic properties
EI Classification Number641.1 Thermodynamics - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 801 Chemistry - 802.2 Chemical Reactions
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Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285124
Collection粒子天体物理中心
多学科研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Sun, QS,Li, XM,Du, YD,et al. Luminescence Mechanism and Thermal Stabilities of a White Silicate Phosphor for Multifunctional Applications[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2017,100(1):193-203.
APA Sun, QS.,Li, XM.,Du, YD.,Zhao, B.,Li, H.,...&黄艳.(2017).Luminescence Mechanism and Thermal Stabilities of a White Silicate Phosphor for Multifunctional Applications.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,100(1),193-203.
MLA Sun, QS,et al."Luminescence Mechanism and Thermal Stabilities of a White Silicate Phosphor for Multifunctional Applications".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 100.1(2017):193-203.
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