High quantum efficiency and excellent color purity of red-emitting Eu3+-heavily doped Gd(BO2)3-Y3BO6-GdBO3 phosphors for NUV-pumped WLED applications.
| Title: | High quantum efficiency and excellent color purity of red-emitting Eu3+-heavily doped Gd(BO2)3-Y3BO6-GdBO3 phosphors for NUV-pumped WLED applications. |
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| Authors: | Tran MT; Faculty of Materials Science and Engineering, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam.; Van Quang N; Department of Chemistry Hanoi Pedagogical University 2 Phuc Yen Vinh Phuc Vietnam.; Huyen NT; Department of Chemistry Hanoi Pedagogical University 2 Phuc Yen Vinh Phuc Vietnam.; Tu N; Faculty of Fundamental Sciences, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam tu.nguyen@phenikaa-uni.edu.vn.; Van Du N; Faculty of Fundamental Sciences, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam tu.nguyen@phenikaa-uni.edu.vn.; Trung DQ; Faculty of Fundamental Sciences, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam tu.nguyen@phenikaa-uni.edu.vn.; Tuan NT; College of Science, Cantho University 3/2 Ninh Kieu Cantho 94000 Vietnam.; Hung ND; International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST) 01 Dai Co Viet Hanoi 10000 Vietnam.; Viet DX; International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST) 01 Dai Co Viet Hanoi 10000 Vietnam.; Tung DT; International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST) 01 Dai Co Viet Hanoi 10000 Vietnam.; Trung Kien ND; Faculty of Electrical and Electronic Engineering, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam.; Hao Tam TT; School of Information Technology and Digital Economics (SITDE), National Economics University (NEU) 207 Giai Phong Street Hanoi 10000 Vietnam.; Huy PT; Faculty of Materials Science and Engineering, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam. |
| Source: | RSC advances [RSC Adv] 2023 Aug 22; Vol. 13 (36), pp. 25069-25080. Date of Electronic Publication: 2023 Aug 22 (Print Publication: 2023). |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Royal Society of Chemistry Country of Publication: England NLM ID: 101581657 Publication Model: eCollection Cited Medium: Internet ISSN: 2046-2069 (Electronic) Linking ISSN: 20462069 NLM ISO Abbreviation: RSC Adv Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: Cambridge [England] : Royal Society of Chemistry, [2011]- |
| Abstract: | Eu3+-doped phosphors have been much attractive owing to their narrow-band red emission peak at 610-630 nm with high color purity; however, the weak and narrow absorption band in the NUV region limits their applications. Doping a higher amount of Eu3+ ions into a non-concentration quenching host could be key to enhancing the efficiency of the absorption value and emission intensity. Hence, the design of Eu3+-heavily doped phosphors with a suitable host lattice is key for applications. In this study, red-emitting Eu3+-doped Gd(BO2)3-Y3BO6-GdBO3 (GdYGd:Eu3+) phosphor with a high quantum efficiency of 58.4% and excellent color purity of 99.5% is reported for the first time. The phosphor is efficiently excited by NUV light at 394 nm and emits a strong red emission band in the 590-710 nm range, peaking at 612 nm. The optimal annealing temperature and Eu3+ doping content to obtain the strongest PL intensity are 1100 °C and 20 mol%, respectively. The optimized GdYGd:Eu3+ phosphor possesses a high activation energy of 0.319 eV and a lifetime of 1.14 ms. An illustration of phosphor-coated NUV LED with chromaticity coordinates (x = 0.5636,y = 0.2961) was successfully synthesized, demonstrating the great potential of GdYGd:Eu3+ phosphor for NUV-pumped WLED applications.; (This journal is © The Royal Society of Chemistry.) |
| Competing Interests: | There are no conflicts to declare. |
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| Entry Date(s): | Date Created: 20230824 Latest Revision: 20230825 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC10443187 |
| DOI: | 10.1039/d3ra03955b |
| PMID: | 37614782 |
| Database: | MEDLINE |
Journal Article