Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Relationship between Eu3+ substitution sites and photoluminescence properties of SrIn2O4:Eu3+ spinel phosphors | |
| Kang, Yipu1; Thuy, Bui1; Shimokawa, Yohei1; Hayakawa, Tomokatsu1; Sakaida, Satoshi1; Miao, Lei2; Tanemura, Sakae2; Honda, Sawao1; Iwamoto, Yuji1 | |
| 2016 | |
| Source Publication | JOURNAL OF LUMINESCENCE
 |
| Volume | 169Pages:78-85 |
| Abstract | Eu3+-doped SrIn2O4 phosphors were synthesized by the solid solution method at 1400 degrees C in air. The chemical composition of the phosphors was systematically changed to study the relation between the Eu3+ substitution site and photoluminescence (PL) properties. Under excitation of the F-7(0)-> L-5(6) transition of Eu3+ at 393 nm, the SrIn2O4:Eu3+ exhibited dominant red emission peaks at 611, 616 and 623 nm, which are attributed to the electric dipole transition D-5(0)-> F-7(2) of Eu3+. The results of X-ray diffraction analysis combined with PL spectroscopic analysis revealed that Eu3+ ions occupied two different crystallographic In3+ sites in the host SrIn2O4, while it was found to be impossible to substitute Sr2+ with Eu3+ prior to the Eu3+ substitution at the In3+ sites in the SrIn2O4. The intensity of the red emission peaks increased with the total amount of dopant Eu3+ ion at the two In3+ sites, and reached a maximum at 25 mol% Eu3+-doping (SrIn2-xO4:xEu(3+), x=0.25). Moreover, a small amount (< 10 mol%) of Eu3+ at the Sr2+ site in the SrIn2-xO4:xEu(3+) was found to contribute to enhance the red emission peak intensity at 616 nm. As a result, the highest red emission intensity evaluated as the total emission peak intensities at the 611, 616 and 623 nm was achieved for Sr0.92In1.75O4:0.33Eu(3+) in which Eu3+ ion concentrations at the In3+ and Sr2+ sites were simultaneously optimized as 25 and 8 mol%, respectively (Sr1-yIn2-xO4:(x+y)Eu3+, x=0.25, y=0.08). This red emission intensity was 2.2 times higher than that of the phosphor without contribution of the Eu3+ at the Sr2+ site (SrIn2-xO4:xEu(3+), x=0.25). The critical energy transfer distance of Eu3+ ion in the Sr0.92In1.75O4:0.33Eu(3+) phosphor was determined to be 0.817 nm, and the electric multipolar interaction was suggested as the dominant mechanism for concentration quenching of PL emission due to Eu3+ ions in the Eu3+-doped SrIn2O4 phosphors investigated in this study. (C) 2015 Elsevier B.V. All rights reserved. |
| Subtype | Article |
| Keyword | Srin2o4 Eu3++ Substitution Site Photoluminescence Red Emitting Thermal Quenching Property |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.jlumin.2015.08.055 |
| WOS Subject Extended | Optics |
| WOS Keyword | HOST-SENSITIZED LUMINESCENCE ; LIGHT-EMITTING-DIODES ; WHITE-LIGHT ; TUNABLE LUMINESCENCE ; INORGANIC PHOSPHORS ; ACTIVATED SRIN2O4 ; CAIN2O4 ; COLORS ; FIELD ; LEDS |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Optics |
| WOS ID | WOS:000365604700012 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/10912 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 1.Nagoya Inst Technol, Grad Sch Engn, Dept Frontier Mat, Showa Ku, Nagoya, Aichi 4668555, Japan 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Kang, Yipu,Thuy, Bui,Shimokawa, Yohei,et al. Relationship between Eu3+ substitution sites and photoluminescence properties of SrIn2O4:Eu3+ spinel phosphors[J]. JOURNAL OF LUMINESCENCE,2016,169:78-85. |
| APA | Kang, Yipu.,Thuy, Bui.,Shimokawa, Yohei.,Hayakawa, Tomokatsu.,Sakaida, Satoshi.,...&Iwamoto, Yuji.(2016).Relationship between Eu3+ substitution sites and photoluminescence properties of SrIn2O4:Eu3+ spinel phosphors.JOURNAL OF LUMINESCENCE,169,78-85. |
| MLA | Kang, Yipu,et al."Relationship between Eu3+ substitution sites and photoluminescence properties of SrIn2O4:Eu3+ spinel phosphors".JOURNAL OF LUMINESCENCE 169(2016):78-85. |
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