Incorporation of anatase TiO2 particles into silicone encapsulant for high-performance white LED
The optical performances of correlated color temperature (CCT) uniformity, luminous flux, and reliability of cool white light-emitting diodes (LEDs) with diffuser additives, including anatase TiO2, rutile TiO2, and ZrO2 particles, are comparatively evaluated on the basis of approximate CCT of 7200K....
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| Veröffentlicht in: | Materials letters 2015-03, Vol.143, p.244-247 |
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| creator | Huang, Kuan-Chieh Huang, Yi-Ru Chuang, Tung-Lin Ting, Shao-Ying Tseng, Snow H. Huang, Jing-En |
| description | The optical performances of correlated color temperature (CCT) uniformity, luminous flux, and reliability of cool white light-emitting diodes (LEDs) with diffuser additives, including anatase TiO2, rutile TiO2, and ZrO2 particles, are comparatively evaluated on the basis of approximate CCT of 7200K. Among the applications of such metal oxides, the incorporation of anatase TiO2 contributes to relevant white LED having the most enhanced luminous flux and a reduced CCT deviation of 7.1 and 95.2%, respectively, with reference to the performances, deriving from the bare white LED at 350 mA. Additionally, the anatase TiO2-loaded white LED exhibits a steady lumen output for at least 2000h.
•Optical performances of white LEDs with anatase, rutile TiO2, and ZrO2 are evaluated.•Anatase TiO2-loaded white LED gives the best 120.4lm among three diffuser additives.•Cool white LED using anatase TiO2 has good angular CCT distribution at CCT of 7200K.•Lumen output of white LED with anatase TiO2 remains stable for 2000h at 350mA. |
| doi_str_mv | 10.1016/j.matlet.2014.12.134 |
| format | Article |
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•Optical performances of white LEDs with anatase, rutile TiO2, and ZrO2 are evaluated.•Anatase TiO2-loaded white LED gives the best 120.4lm among three diffuser additives.•Cool white LED using anatase TiO2 has good angular CCT distribution at CCT of 7200K.•Lumen output of white LED with anatase TiO2 remains stable for 2000h at 350mA.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2014.12.134</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Anatase ; Approximation ; Ceramics ; Composite materials ; Deviation ; Encapsulation ; Flux ; Light-emitting diodes ; Metal oxides ; Scattering ; Silicones ; Titanium dioxide ; White light-emitting diode</subject><ispartof>Materials letters, 2015-03, Vol.143, p.244-247</ispartof><rights>2015 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c339t-ddb882eb95991a4b74492693b71bf1ef1f030d888b4a2b2e03920ce5793269d03</citedby><cites>FETCH-LOGICAL-c339t-ddb882eb95991a4b74492693b71bf1ef1f030d888b4a2b2e03920ce5793269d03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.matlet.2014.12.134$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Huang, Kuan-Chieh</creatorcontrib><creatorcontrib>Huang, Yi-Ru</creatorcontrib><creatorcontrib>Chuang, Tung-Lin</creatorcontrib><creatorcontrib>Ting, Shao-Ying</creatorcontrib><creatorcontrib>Tseng, Snow H.</creatorcontrib><creatorcontrib>Huang, Jing-En</creatorcontrib><title>Incorporation of anatase TiO2 particles into silicone encapsulant for high-performance white LED</title><title>Materials letters</title><description>The optical performances of correlated color temperature (CCT) uniformity, luminous flux, and reliability of cool white light-emitting diodes (LEDs) with diffuser additives, including anatase TiO2, rutile TiO2, and ZrO2 particles, are comparatively evaluated on the basis of approximate CCT of 7200K. Among the applications of such metal oxides, the incorporation of anatase TiO2 contributes to relevant white LED having the most enhanced luminous flux and a reduced CCT deviation of 7.1 and 95.2%, respectively, with reference to the performances, deriving from the bare white LED at 350 mA. Additionally, the anatase TiO2-loaded white LED exhibits a steady lumen output for at least 2000h.
•Optical performances of white LEDs with anatase, rutile TiO2, and ZrO2 are evaluated.•Anatase TiO2-loaded white LED gives the best 120.4lm among three diffuser additives.•Cool white LED using anatase TiO2 has good angular CCT distribution at CCT of 7200K.•Lumen output of white LED with anatase TiO2 remains stable for 2000h at 350mA.</description><subject>Anatase</subject><subject>Approximation</subject><subject>Ceramics</subject><subject>Composite materials</subject><subject>Deviation</subject><subject>Encapsulation</subject><subject>Flux</subject><subject>Light-emitting diodes</subject><subject>Metal oxides</subject><subject>Scattering</subject><subject>Silicones</subject><subject>Titanium dioxide</subject><subject>White light-emitting diode</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kD1PwzAQhi0EEqXwDxg8siT4K028IKFSPqRKXYrEZhznQl0lcbBdEP8eV2Fmuhue99Xdg9A1JTkldHG7z3sdO4g5I1TklOWUixM0o1XJMyFLeYpmCSuzoizfztFFCHtCiJBEzND7y2CcH53X0boBuxbrQUcdAG_thuFR-2hNBwHbITocbGeNGwDDYPQYDp0eIm6dxzv7sctG8Gnv9WAAf-9sBLxePVyis1Z3Aa7-5hy9Pq62y-dsvXl6Wd6vM8O5jFnT1FXFoJaFlFSLuhRCsoXkdUnrlkJLW8JJU1VVLTSrGRAuGTFQlJInrCF8jm6m3tG7zwOEqHobDHTpRHCHoNL_FSELSouEigk13oXgoVWjt732P4oSdRSq9moSqo5CFWUqCU2xuykG6Y0vC14FY5MIaKwHE1Xj7P8Fv9-WgU4</recordid><startdate>20150315</startdate><enddate>20150315</enddate><creator>Huang, Kuan-Chieh</creator><creator>Huang, Yi-Ru</creator><creator>Chuang, Tung-Lin</creator><creator>Ting, Shao-Ying</creator><creator>Tseng, Snow H.</creator><creator>Huang, Jing-En</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SP</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20150315</creationdate><title>Incorporation of anatase TiO2 particles into silicone encapsulant for high-performance white LED</title><author>Huang, Kuan-Chieh ; Huang, Yi-Ru ; Chuang, Tung-Lin ; Ting, Shao-Ying ; Tseng, Snow H. ; Huang, Jing-En</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c339t-ddb882eb95991a4b74492693b71bf1ef1f030d888b4a2b2e03920ce5793269d03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Anatase</topic><topic>Approximation</topic><topic>Ceramics</topic><topic>Composite materials</topic><topic>Deviation</topic><topic>Encapsulation</topic><topic>Flux</topic><topic>Light-emitting diodes</topic><topic>Metal oxides</topic><topic>Scattering</topic><topic>Silicones</topic><topic>Titanium dioxide</topic><topic>White light-emitting diode</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huang, Kuan-Chieh</creatorcontrib><creatorcontrib>Huang, Yi-Ru</creatorcontrib><creatorcontrib>Chuang, Tung-Lin</creatorcontrib><creatorcontrib>Ting, Shao-Ying</creatorcontrib><creatorcontrib>Tseng, Snow H.</creatorcontrib><creatorcontrib>Huang, Jing-En</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huang, Kuan-Chieh</au><au>Huang, Yi-Ru</au><au>Chuang, Tung-Lin</au><au>Ting, Shao-Ying</au><au>Tseng, Snow H.</au><au>Huang, Jing-En</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Incorporation of anatase TiO2 particles into silicone encapsulant for high-performance white LED</atitle><jtitle>Materials letters</jtitle><date>2015-03-15</date><risdate>2015</risdate><volume>143</volume><spage>244</spage><epage>247</epage><pages>244-247</pages><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>The optical performances of correlated color temperature (CCT) uniformity, luminous flux, and reliability of cool white light-emitting diodes (LEDs) with diffuser additives, including anatase TiO2, rutile TiO2, and ZrO2 particles, are comparatively evaluated on the basis of approximate CCT of 7200K. Among the applications of such metal oxides, the incorporation of anatase TiO2 contributes to relevant white LED having the most enhanced luminous flux and a reduced CCT deviation of 7.1 and 95.2%, respectively, with reference to the performances, deriving from the bare white LED at 350 mA. Additionally, the anatase TiO2-loaded white LED exhibits a steady lumen output for at least 2000h.
•Optical performances of white LEDs with anatase, rutile TiO2, and ZrO2 are evaluated.•Anatase TiO2-loaded white LED gives the best 120.4lm among three diffuser additives.•Cool white LED using anatase TiO2 has good angular CCT distribution at CCT of 7200K.•Lumen output of white LED with anatase TiO2 remains stable for 2000h at 350mA.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2014.12.134</doi><tpages>4</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Anatase Approximation Ceramics Composite materials Deviation Encapsulation Flux Light-emitting diodes Metal oxides Scattering Silicones Titanium dioxide White light-emitting diode |
| title | Incorporation of anatase TiO2 particles into silicone encapsulant for high-performance white LED |
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