Broadband orange-emitting Sr3Si8O4N10:Eu2+ phosphor discovered by a modified single-particle-diagnosis approach
Discovery of new phosphors with desired properties is of great significance for developing high optical quality solid-state lighting. The single-particle-diagnosis approach is an effective way to search novel phosphors by analyzing tiny single crystals screened from the fired powder mixtures. In thi...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2023-04-01
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| Series: | Journal of Advanced Ceramics |
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| Online Access: | https://www.sciopen.com/article/10.26599/JAC.2023.9220716 |
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| author | Le Wang Guozhen Ding Shuxing Li Shiro Funahashi Takashi Takeda Lu Yin Pei Liang Naoto Hirosaki Rong-Jun Xie |
| author_facet | Le Wang Guozhen Ding Shuxing Li Shiro Funahashi Takashi Takeda Lu Yin Pei Liang Naoto Hirosaki Rong-Jun Xie |
| author_sort | Le Wang |
| collection | DOAJ |
| description | Discovery of new phosphors with desired properties is of great significance for developing high optical quality solid-state lighting. The single-particle-diagnosis approach is an effective way to search novel phosphors by analyzing tiny single crystals screened from the fired powder mixtures. In this work, a broadband orange-emitting phosphor of Sr3Si8O4N10:Eu2+ for solid state lighting was discovered by this method. The new oxonitridosilicate crystallizes in the monoclinic space group of P21/n (No. 14) with cell parameters of a = 4.8185 Å, b = 24.2303 Å, c = 10.5611 Å, β = 90.616°, and Z = 4. The crystal structure of Sr3Si8O4N10 was determined from the single-crystal X-ray diffraction (XRD) data of a single crystal, which is made up of a three-dimensional framework consisting of vertex-sharing SiN4 and SiN3O tetrahedra. Sr2+ ions occupy five crystallographic sites and have coordination numbers between 6 and 8 with one ordered Sr and other four disordered Sr atoms. The multiple Sr sites lead to a broadband emission centered at 565–600 nm and a bandwidth of 128–138 nm. The internal and external quantum efficiencies (IQE/EQE) of the title phosphor are 48.6% and 29.1% under 450 nm excitation, respectively. To improve the accuracy and speed of distinguishing phosphor particles in fired powder mixtures, a microscopic imaging spectroscopy is developed and demonstrated to modify the single-particle-diagnosis method. |
| first_indexed | 2024-04-09T16:14:59Z |
| format | Article |
| id | doaj.art-bb8c891e33a34f759e3bff9446ff1917 |
| institution | Directory Open Access Journal |
| issn | 2226-4108 2227-8508 |
| language | English |
| last_indexed | 2024-04-09T16:14:59Z |
| publishDate | 2023-04-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj.art-bb8c891e33a34f759e3bff9446ff19172023-04-24T06:04:00ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082023-04-0112473474610.26599/JAC.2023.9220716Broadband orange-emitting Sr3Si8O4N10:Eu2+ phosphor discovered by a modified single-particle-diagnosis approachLe Wang0Guozhen Ding1Shuxing Li2Shiro Funahashi3Takashi Takeda4Lu Yin5Pei Liang6Naoto Hirosaki7Rong-Jun Xie8College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaFujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, College of Materials, Xiamen University, Xiamen 361005, ChinaFujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, College of Materials, Xiamen University, Xiamen 361005, ChinaPhosphors Group, National Institute for Materials Science, Tsukuba 305-0035, JapanPhosphors Group, National Institute for Materials Science, Tsukuba 305-0035, JapanCollege of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaCollege of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaPhosphors Group, National Institute for Materials Science, Tsukuba 305-0035, JapanFujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, College of Materials, Xiamen University, Xiamen 361005, ChinaDiscovery of new phosphors with desired properties is of great significance for developing high optical quality solid-state lighting. The single-particle-diagnosis approach is an effective way to search novel phosphors by analyzing tiny single crystals screened from the fired powder mixtures. In this work, a broadband orange-emitting phosphor of Sr3Si8O4N10:Eu2+ for solid state lighting was discovered by this method. The new oxonitridosilicate crystallizes in the monoclinic space group of P21/n (No. 14) with cell parameters of a = 4.8185 Å, b = 24.2303 Å, c = 10.5611 Å, β = 90.616°, and Z = 4. The crystal structure of Sr3Si8O4N10 was determined from the single-crystal X-ray diffraction (XRD) data of a single crystal, which is made up of a three-dimensional framework consisting of vertex-sharing SiN4 and SiN3O tetrahedra. Sr2+ ions occupy five crystallographic sites and have coordination numbers between 6 and 8 with one ordered Sr and other four disordered Sr atoms. The multiple Sr sites lead to a broadband emission centered at 565–600 nm and a bandwidth of 128–138 nm. The internal and external quantum efficiencies (IQE/EQE) of the title phosphor are 48.6% and 29.1% under 450 nm excitation, respectively. To improve the accuracy and speed of distinguishing phosphor particles in fired powder mixtures, a microscopic imaging spectroscopy is developed and demonstrated to modify the single-particle-diagnosis method.https://www.sciopen.com/article/10.26599/JAC.2023.9220716oxonitridosilicatephosphorphotoluminescence (pl)solid-state lightingimaging spectroscopy |
| spellingShingle | Le Wang Guozhen Ding Shuxing Li Shiro Funahashi Takashi Takeda Lu Yin Pei Liang Naoto Hirosaki Rong-Jun Xie Broadband orange-emitting Sr3Si8O4N10:Eu2+ phosphor discovered by a modified single-particle-diagnosis approach Journal of Advanced Ceramics oxonitridosilicate phosphor photoluminescence (pl) solid-state lighting imaging spectroscopy |
| title | Broadband orange-emitting Sr3Si8O4N10:Eu2+ phosphor discovered by a modified single-particle-diagnosis approach |
| title_full | Broadband orange-emitting Sr3Si8O4N10:Eu2+ phosphor discovered by a modified single-particle-diagnosis approach |
| title_fullStr | Broadband orange-emitting Sr3Si8O4N10:Eu2+ phosphor discovered by a modified single-particle-diagnosis approach |
| title_full_unstemmed | Broadband orange-emitting Sr3Si8O4N10:Eu2+ phosphor discovered by a modified single-particle-diagnosis approach |
| title_short | Broadband orange-emitting Sr3Si8O4N10:Eu2+ phosphor discovered by a modified single-particle-diagnosis approach |
| title_sort | broadband orange emitting sr3si8o4n10 eu2 phosphor discovered by a modified single particle diagnosis approach |
| topic | oxonitridosilicate phosphor photoluminescence (pl) solid-state lighting imaging spectroscopy |
| url | https://www.sciopen.com/article/10.26599/JAC.2023.9220716 |
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