Characteristics Improvement and Practical Applications of Sialon Phosphors
α-Sialon and β-Sialon phosphors activated by Eu2+ are suitable for white LEDs used as LCD backlights and illuminations because of their excellent properties such as long-term reliability and small temperature dependency of photoluminescence emission intensity. α-Sialon phosphor emits yellow/orange f...
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| Veröffentlicht in: | Journal of the Japan Society of Powder and Powder Metallurgy 2022/04/15, Vol.69(4), pp.125-130 |
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| container_end_page | 130 |
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| container_title | Journal of the Japan Society of Powder and Powder Metallurgy |
| container_volume | 69 |
| creator | YAMADA, Suzuya EMOTO, Hideyuki NONOGAKI, Ryozo |
| description | α-Sialon and β-Sialon phosphors activated by Eu2+ are suitable for white LEDs used as LCD backlights and illuminations because of their excellent properties such as long-term reliability and small temperature dependency of photoluminescence emission intensity. α-Sialon phosphor emits yellow/orange fluorescent light and β-Sialon phosphor emits green fluorescent light.During firing by the gas pressure sintering method, the emission intensity of β-Sialon phosphor was increased with grain growth by Ostwald ripening. We succeeded in improvement of the emission intensity by optimizing synthesis conditions, and the emission intensity can be increased three times more. β-Sialon phosphor is adopted for backlights of LED TV.The emission wavelength of α-Sialon phosphor can be tuned from yellow to orange by composition tailoring. Amber color LED devices were demonstrated using orange α-Sialon phosphor. It is suitable for winkers of automobiles and adopted for this application. |
| doi_str_mv | 10.2497/jjspm.69.125 |
| format | Article |
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We succeeded in improvement of the emission intensity by optimizing synthesis conditions, and the emission intensity can be increased three times more. β-Sialon phosphor is adopted for backlights of LED TV.The emission wavelength of α-Sialon phosphor can be tuned from yellow to orange by composition tailoring. Amber color LED devices were demonstrated using orange α-Sialon phosphor. It is suitable for winkers of automobiles and adopted for this application.</description><identifier>ISSN: 0532-8799</identifier><identifier>EISSN: 1880-9014</identifier><identifier>DOI: 10.2497/jjspm.69.125</identifier><language>eng ; jpn</language><publisher>Kyoto: Japan Society of Powder and Powder Metallurgy</publisher><subject>Backlights ; Emission ; Fluorescence ; Gas pressure ; Grain growth ; Hot pressing ; LED ; Luminous intensity ; Ostwald ripening ; phosphor ; Phosphors ; Photoluminescence ; Temperature dependence ; α-Sialon ; β-Sialon</subject><ispartof>Journal of the Japan Society of Powder and Powder Metallurgy, 2022/04/15, Vol.69(4), pp.125-130</ispartof><rights>2022 by Japan Society of Powder and Powder Metallurgy</rights><rights>Copyright Japan Science and Technology Agency Apr 2022</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c1595-a1573bbc00184802c3423bebdf9e325e3493d6ff5e0cf510824058ec53c75d163</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1877,27901,27902</link.rule.ids></links><search><creatorcontrib>YAMADA, Suzuya</creatorcontrib><creatorcontrib>EMOTO, Hideyuki</creatorcontrib><creatorcontrib>NONOGAKI, Ryozo</creatorcontrib><title>Characteristics Improvement and Practical Applications of Sialon Phosphors</title><title>Journal of the Japan Society of Powder and Powder Metallurgy</title><addtitle>J. Jpn. Soc. Powder Powder Metallurgy</addtitle><description>α-Sialon and β-Sialon phosphors activated by Eu2+ are suitable for white LEDs used as LCD backlights and illuminations because of their excellent properties such as long-term reliability and small temperature dependency of photoluminescence emission intensity. α-Sialon phosphor emits yellow/orange fluorescent light and β-Sialon phosphor emits green fluorescent light.During firing by the gas pressure sintering method, the emission intensity of β-Sialon phosphor was increased with grain growth by Ostwald ripening. We succeeded in improvement of the emission intensity by optimizing synthesis conditions, and the emission intensity can be increased three times more. β-Sialon phosphor is adopted for backlights of LED TV.The emission wavelength of α-Sialon phosphor can be tuned from yellow to orange by composition tailoring. Amber color LED devices were demonstrated using orange α-Sialon phosphor. It is suitable for winkers of automobiles and adopted for this application.</description><subject>Backlights</subject><subject>Emission</subject><subject>Fluorescence</subject><subject>Gas pressure</subject><subject>Grain growth</subject><subject>Hot pressing</subject><subject>LED</subject><subject>Luminous intensity</subject><subject>Ostwald ripening</subject><subject>phosphor</subject><subject>Phosphors</subject><subject>Photoluminescence</subject><subject>Temperature dependence</subject><subject>α-Sialon</subject><subject>β-Sialon</subject><issn>0532-8799</issn><issn>1880-9014</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNpFkFtLwzAUgIMoOObe_AEFX-3MvcmTjOFlMnCgPoc0TV1K29SkE_z3Zm7Mp3PgfOf2AXCN4BxTWdw1TRy6OZdzhNkZmCAhYC4houdgAhnBuSikvASzGF0JIeYFxJRMwMtyq4M2ow0ujs7EbNUNwX_bzvZjpvsq2-yrzug2WwxDm5LR-T5mvs7enG59n222Pg5bH-IVuKh1G-3sGKfg4_Hhffmcr1-fVsvFOjeISZZrxApSlgZCJKiA2BCKSWnLqpaWYGYJlaTidc0sNDVDUGAKmbCGEVOwCnEyBTeHuenQr52No2r8LvRppcKcCSw55jRRtwfKBB9jsLUagut0-FEIqr0w9SdMcamSsITfH_AmjvrTnmAd0vOt_YfpseNUMUmgsj35BSZCdiU</recordid><startdate>20220415</startdate><enddate>20220415</enddate><creator>YAMADA, Suzuya</creator><creator>EMOTO, Hideyuki</creator><creator>NONOGAKI, Ryozo</creator><general>Japan Society of Powder and Powder Metallurgy</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20220415</creationdate><title>Characteristics Improvement and Practical Applications of Sialon Phosphors</title><author>YAMADA, Suzuya ; EMOTO, Hideyuki ; NONOGAKI, Ryozo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1595-a1573bbc00184802c3423bebdf9e325e3493d6ff5e0cf510824058ec53c75d163</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>2022</creationdate><topic>Backlights</topic><topic>Emission</topic><topic>Fluorescence</topic><topic>Gas pressure</topic><topic>Grain growth</topic><topic>Hot pressing</topic><topic>LED</topic><topic>Luminous intensity</topic><topic>Ostwald ripening</topic><topic>phosphor</topic><topic>Phosphors</topic><topic>Photoluminescence</topic><topic>Temperature dependence</topic><topic>α-Sialon</topic><topic>β-Sialon</topic><toplevel>online_resources</toplevel><creatorcontrib>YAMADA, Suzuya</creatorcontrib><creatorcontrib>EMOTO, Hideyuki</creatorcontrib><creatorcontrib>NONOGAKI, Ryozo</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of the Japan Society of Powder and Powder Metallurgy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>YAMADA, Suzuya</au><au>EMOTO, Hideyuki</au><au>NONOGAKI, Ryozo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characteristics Improvement and Practical Applications of Sialon Phosphors</atitle><jtitle>Journal of the Japan Society of Powder and Powder Metallurgy</jtitle><addtitle>J. Jpn. Soc. Powder Powder Metallurgy</addtitle><date>2022-04-15</date><risdate>2022</risdate><volume>69</volume><issue>4</issue><spage>125</spage><epage>130</epage><pages>125-130</pages><issn>0532-8799</issn><eissn>1880-9014</eissn><abstract>α-Sialon and β-Sialon phosphors activated by Eu2+ are suitable for white LEDs used as LCD backlights and illuminations because of their excellent properties such as long-term reliability and small temperature dependency of photoluminescence emission intensity. α-Sialon phosphor emits yellow/orange fluorescent light and β-Sialon phosphor emits green fluorescent light.During firing by the gas pressure sintering method, the emission intensity of β-Sialon phosphor was increased with grain growth by Ostwald ripening. We succeeded in improvement of the emission intensity by optimizing synthesis conditions, and the emission intensity can be increased three times more. β-Sialon phosphor is adopted for backlights of LED TV.The emission wavelength of α-Sialon phosphor can be tuned from yellow to orange by composition tailoring. Amber color LED devices were demonstrated using orange α-Sialon phosphor. It is suitable for winkers of automobiles and adopted for this application.</abstract><cop>Kyoto</cop><pub>Japan Society of Powder and Powder Metallurgy</pub><doi>10.2497/jjspm.69.125</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0532-8799 |
| ispartof | Journal of the Japan Society of Powder and Powder Metallurgy, 2022/04/15, Vol.69(4), pp.125-130 |
| issn | 0532-8799 1880-9014 |
| language | eng ; jpn |
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| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; EZB-FREE-00999 freely available EZB journals |
| subjects | Backlights Emission Fluorescence Gas pressure Grain growth Hot pressing LED Luminous intensity Ostwald ripening phosphor Phosphors Photoluminescence Temperature dependence α-Sialon β-Sialon |
| title | Characteristics Improvement and Practical Applications of Sialon Phosphors |
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