| 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)
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| 2017 | |
| Source Publication | JOURNAL OF THE AMERICAN CERAMIC SOCIETY
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| ISSN | 0002-7820 |
| EISSN | 1551-2916 |
| Volume | 100Issue:1Pages:193-203 |
| Subtype | Article |
| Abstract | A 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. |
| Keyword | luminescence optical materials/properties phosphors thermal properties |
| DOI | 10.1111/jace.14480 |
| WOS Keyword | LIGHT-EMITTING-DIODES ; FIELD-EMISSION DISPLAYS ; SOL-GEL SYNTHESIS ; CRYSTAL-STRUCTURE ; UV-LEDS ; PHOTOLUMINESCENCE ; TEMPERATURE ; GREEN ; CE3+ ; TB3+ |
| Indexed By | SCI ; EI ; SCOPUS |
| Language | 英语 |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Ceramics |
| WOS ID | WOS:000393862800023 |
| EI Accession Number | 20164402967257 |
| EI Keywords | Light - Light emitting diodes - Luminescence - Phosphors - Rietveld refinement - Silicates - Solid state reactions - Thermodynamic properties |
| EI Classification Number | 641.1 Thermodynamics - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 801 Chemistry - 802.2 Chemical Reactions |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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 Affilication | Institute 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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