Sunyuezi Chen , Ziwei Lu , Yongfu Liu , Ruiyang Li , Peng Sun , Zhaohua Luo , Jun Jiang
{"title":"远红外 Y3Ga5O12:Cr3+ 荧光粉的合成、结构和光致发光特性","authors":"Sunyuezi Chen , Ziwei Lu , Yongfu Liu , Ruiyang Li , Peng Sun , Zhaohua Luo , Jun Jiang","doi":"10.1016/j.omx.2024.100343","DOIUrl":null,"url":null,"abstract":"<div><p>Far-red (FR) photosensitive pigment (P<sub>FR</sub>) is vital for plant photomorphogenesis. Phosphor-converted (pc) LEDs are the next-generation FR light devices. How to obtain FR-emitting phosphors with a good quantum efficiency, suitable photoluminescence and high thermal stability is still difficult. Herein, we optimize the Y<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub>:Cr<sup>3+</sup> FR phosphor, which has an emission peak at 711 nm and a full width at half maximum of 74 nm, closing to the P<sub>FR</sub> absorption band. By adopting the solid-state sintering technology, the internal quantum efficiency reaches 85.5 %, more than 1.5 times higher than that reported by the liquid reaction (55 %). Furthermore, the external quantum efficiency reaches as high as 33.1 %, indicating the promising application in FR-LEDs.</p></div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":"23 ","pages":"Article 100343"},"PeriodicalIF":0.0000,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S259014782400055X/pdfft?md5=84c9b0616736044d17a5b93cabcd2187&pid=1-s2.0-S259014782400055X-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Synthesis, structure and photoluminescent properties of far-red Y3Ga5O12:Cr3+ phosphors\",\"authors\":\"Sunyuezi Chen , Ziwei Lu , Yongfu Liu , Ruiyang Li , Peng Sun , Zhaohua Luo , Jun Jiang\",\"doi\":\"10.1016/j.omx.2024.100343\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Far-red (FR) photosensitive pigment (P<sub>FR</sub>) is vital for plant photomorphogenesis. Phosphor-converted (pc) LEDs are the next-generation FR light devices. How to obtain FR-emitting phosphors with a good quantum efficiency, suitable photoluminescence and high thermal stability is still difficult. Herein, we optimize the Y<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub>:Cr<sup>3+</sup> FR phosphor, which has an emission peak at 711 nm and a full width at half maximum of 74 nm, closing to the P<sub>FR</sub> absorption band. By adopting the solid-state sintering technology, the internal quantum efficiency reaches 85.5 %, more than 1.5 times higher than that reported by the liquid reaction (55 %). Furthermore, the external quantum efficiency reaches as high as 33.1 %, indicating the promising application in FR-LEDs.</p></div>\",\"PeriodicalId\":52192,\"journal\":{\"name\":\"Optical Materials: X\",\"volume\":\"23 \",\"pages\":\"Article 100343\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S259014782400055X/pdfft?md5=84c9b0616736044d17a5b93cabcd2187&pid=1-s2.0-S259014782400055X-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optical Materials: X\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S259014782400055X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Materials: X","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S259014782400055X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Engineering","Score":null,"Total":0}
Synthesis, structure and photoluminescent properties of far-red Y3Ga5O12:Cr3+ phosphors
Far-red (FR) photosensitive pigment (PFR) is vital for plant photomorphogenesis. Phosphor-converted (pc) LEDs are the next-generation FR light devices. How to obtain FR-emitting phosphors with a good quantum efficiency, suitable photoluminescence and high thermal stability is still difficult. Herein, we optimize the Y3Ga5O12:Cr3+ FR phosphor, which has an emission peak at 711 nm and a full width at half maximum of 74 nm, closing to the PFR absorption band. By adopting the solid-state sintering technology, the internal quantum efficiency reaches 85.5 %, more than 1.5 times higher than that reported by the liquid reaction (55 %). Furthermore, the external quantum efficiency reaches as high as 33.1 %, indicating the promising application in FR-LEDs.
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