LiY1axEux(MoO4)2 as a promising red-emitting phosphor of WLEDs synthesized by sol-gel process
A series of LiY1axEux(MoO4)2 redaemitting phosphors were synthesized by sol-gel technique. The phase impurity and spectroscopic properties were characterized by X-ray diffraction (XRD) and photo-luminescence (PL) spectra respectively. The effect of Eu3+ doping concentration, annealing temperature an...
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| Veröffentlicht in: | Journal of rare earths 2012-04, Vol.30 (4), p.315-319 |
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| container_title | Journal of rare earths |
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| creator | ZHOU, Xianju ZHOU, Tonghui LI, Yingmao FENG, Qiaochun |
| description | A series of LiY1axEux(MoO4)2 redaemitting phosphors were synthesized by sol-gel technique. The phase impurity and spectroscopic properties were characterized by X-ray diffraction (XRD) and photo-luminescence (PL) spectra respectively. The effect of Eu3+ doping concentration, annealing temperature and the molar ratio of citric acid to the total metal cations (C: M) on the optical properties of the red phosphors were studied and optimized. It was found that all the samples could be excited efficiently by blue light (465 nm), which was well coincident with the emission of GaN based LED chips. The luminescent intensity reached maximum when annealing temperature was 750 [deg]C and Eu3+ doping concentration was 5% with C: M=3: 1. |
| doi_str_mv | 10.1016/S1002-0721(12)60044-1 |
| format | Article |
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The phase impurity and spectroscopic properties were characterized by X-ray diffraction (XRD) and photo-luminescence (PL) spectra respectively. The effect of Eu3+ doping concentration, annealing temperature and the molar ratio of citric acid to the total metal cations (C: M) on the optical properties of the red phosphors were studied and optimized. It was found that all the samples could be excited efficiently by blue light (465 nm), which was well coincident with the emission of GaN based LED chips. The luminescent intensity reached maximum when annealing temperature was 750 [deg]C and Eu3+ doping concentration was 5% with C: M=3: 1.</description><identifier>ISSN: 1002-0721</identifier><identifier>DOI: 10.1016/S1002-0721(12)60044-1</identifier><language>eng</language><subject>Annealing ; Cations ; Doping ; Gallium nitrides ; Phosphors ; Photoluminescence ; Rare earth metals ; Sol gel process</subject><ispartof>Journal of rare earths, 2012-04, Vol.30 (4), p.315-319</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>ZHOU, Xianju</creatorcontrib><creatorcontrib>ZHOU, Tonghui</creatorcontrib><creatorcontrib>LI, Yingmao</creatorcontrib><creatorcontrib>FENG, Qiaochun</creatorcontrib><title>LiY1axEux(MoO4)2 as a promising red-emitting phosphor of WLEDs synthesized by sol-gel process</title><title>Journal of rare earths</title><description>A series of LiY1axEux(MoO4)2 redaemitting phosphors were synthesized by sol-gel technique. The phase impurity and spectroscopic properties were characterized by X-ray diffraction (XRD) and photo-luminescence (PL) spectra respectively. The effect of Eu3+ doping concentration, annealing temperature and the molar ratio of citric acid to the total metal cations (C: M) on the optical properties of the red phosphors were studied and optimized. It was found that all the samples could be excited efficiently by blue light (465 nm), which was well coincident with the emission of GaN based LED chips. The luminescent intensity reached maximum when annealing temperature was 750 [deg]C and Eu3+ doping concentration was 5% with C: M=3: 1.</description><subject>Annealing</subject><subject>Cations</subject><subject>Doping</subject><subject>Gallium nitrides</subject><subject>Phosphors</subject><subject>Photoluminescence</subject><subject>Rare earth metals</subject><subject>Sol gel process</subject><issn>1002-0721</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqVTU1rwkAQ3UOFqu1PKMwxHlZnNjG25xrxoPTQQumhhK2OumXNaiYB9dcbQbx7eDzeF0-pF8I-IaWDT0I0GkeGIjK9FDFJND2o9s1-VB2Rf8R4NHzDtvqduR-yh6w-RPPwkfQMWAELuzJsnbhiDSUvNW9dVV3EbhOkQQlhBd-zbCwgx6LasLgTL-HvCBK8XrO_7Bcs8qRaK-uFn6_cVdEk-3qf6ibf1yxV3rws2HtbcKglJ4xfzRBNSvEd1TPofEu9</recordid><startdate>20120401</startdate><enddate>20120401</enddate><creator>ZHOU, Xianju</creator><creator>ZHOU, Tonghui</creator><creator>LI, Yingmao</creator><creator>FENG, Qiaochun</creator><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20120401</creationdate><title>LiY1axEux(MoO4)2 as a promising red-emitting phosphor of WLEDs synthesized by sol-gel process</title><author>ZHOU, Xianju ; ZHOU, Tonghui ; LI, Yingmao ; FENG, Qiaochun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_10382502613</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Annealing</topic><topic>Cations</topic><topic>Doping</topic><topic>Gallium nitrides</topic><topic>Phosphors</topic><topic>Photoluminescence</topic><topic>Rare earth metals</topic><topic>Sol gel process</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>ZHOU, Xianju</creatorcontrib><creatorcontrib>ZHOU, Tonghui</creatorcontrib><creatorcontrib>LI, Yingmao</creatorcontrib><creatorcontrib>FENG, Qiaochun</creatorcontrib><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of rare earths</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ZHOU, Xianju</au><au>ZHOU, Tonghui</au><au>LI, Yingmao</au><au>FENG, Qiaochun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>LiY1axEux(MoO4)2 as a promising red-emitting phosphor of WLEDs synthesized by sol-gel process</atitle><jtitle>Journal of rare earths</jtitle><date>2012-04-01</date><risdate>2012</risdate><volume>30</volume><issue>4</issue><spage>315</spage><epage>319</epage><pages>315-319</pages><issn>1002-0721</issn><abstract>A series of LiY1axEux(MoO4)2 redaemitting phosphors were synthesized by sol-gel technique. The phase impurity and spectroscopic properties were characterized by X-ray diffraction (XRD) and photo-luminescence (PL) spectra respectively. The effect of Eu3+ doping concentration, annealing temperature and the molar ratio of citric acid to the total metal cations (C: M) on the optical properties of the red phosphors were studied and optimized. It was found that all the samples could be excited efficiently by blue light (465 nm), which was well coincident with the emission of GaN based LED chips. The luminescent intensity reached maximum when annealing temperature was 750 [deg]C and Eu3+ doping concentration was 5% with C: M=3: 1.</abstract><doi>10.1016/S1002-0721(12)60044-1</doi></addata></record> |
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| source | Elsevier ScienceDirect Journals; Alma/SFX Local Collection |
| subjects | Annealing Cations Doping Gallium nitrides Phosphors Photoluminescence Rare earth metals Sol gel process |
| title | LiY1axEux(MoO4)2 as a promising red-emitting phosphor of WLEDs synthesized by sol-gel process |
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