Effects of TiO2-doped silicone encapsulation material on the light extraction efficiency of GaN-based blue light-emitting diodes
The effects of silicone encapsulation material doped with TiO2 nanoparticles (NPs) on the light extraction efficiency (LEE) of GaN-based blue light-emitting diodes (LEDs) were investigated. The LED samples were encapsulated with pure silicone, uniform TiO2 NP-doped silicone, TiO2 NP-doped silicone a...
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| Veröffentlicht in: | Thin solid films 2014-11, Vol.570, p.273-276 |
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| creator | Wang, Pin-Chao Lin, Chun-Liang Su, Yan-Kuin Chien, Pei-Ching Huang, Guan-Syun Kuo, Shao-Chung Lyu, Guo-Cin |
| description | The effects of silicone encapsulation material doped with TiO2 nanoparticles (NPs) on the light extraction efficiency (LEE) of GaN-based blue light-emitting diodes (LEDs) were investigated. The LED samples were encapsulated with pure silicone, uniform TiO2 NP-doped silicone, TiO2 NP-doped silicone around the chip only, and TiO2 NP-doped silicone encapsulation dome. The average refractive index of silicone was increased by doping with TiO2 NPs with an average diameter of 21nm, and the LEE of GaN-based blue LEDs was also enhanced. Methyl and phenyl silicone were used as encapsulation materials. TiO2 NP-doped methyl silicone encapsulation dome increased the LEE by 10.9%, whereas TiO2 NP-doped phenyl silicone encapsulation dome increased the LEE by 12.9%. The thermal effect, reliability test, and LEE of the LEDs were also analyzed. TiO2 NP-doped silicone encapsulation materials could better enhance LEE compared with pure silicone encapsulation material because of the increased average refractive index, which reduced the total internal reflection at the encapsulation at the air interface.
•Silicone encapsulation of high-power light-emitting diodes (LEDs) was tested.•TiO2-doped silicone encapsulated LEDs showed enhanced light extraction efficiency.•Enhanced temperature stability and reliability were achieved. |
| doi_str_mv | 10.1016/j.tsf.2014.05.021 |
| format | Article |
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•Silicone encapsulation of high-power light-emitting diodes (LEDs) was tested.•TiO2-doped silicone encapsulated LEDs showed enhanced light extraction efficiency.•Enhanced temperature stability and reliability were achieved.</description><identifier>ISSN: 0040-6090</identifier><identifier>EISSN: 1879-2731</identifier><identifier>DOI: 10.1016/j.tsf.2014.05.021</identifier><identifier>CODEN: THSFAP</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Cross-disciplinary physics: materials science; rheology ; Domes ; Electronics ; Encapsulation ; Exact sciences and technology ; Extraction ; Light extraction efficiency ; Light-emitting diodes ; Materials science ; Nanoscale materials and structures: fabrication and characterization ; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation ; Optical properties of specific thin films ; Optoelectronic devices ; Other semiconductors ; Other topics in nanoscale materials and structures ; Phenyls ; Physics ; Refractive index ; Refractivity ; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices ; Silicone encapsulation ; Silicones ; Specific materials ; TiO2 nanoparticles ; Titanium dioxide</subject><ispartof>Thin solid films, 2014-11, Vol.570, p.273-276</ispartof><rights>2014</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c430t-2ce68d024b362fe1bbff72b9e8e9a32a676393d7842325ba3fc810fb6ebf5883</citedby><cites>FETCH-LOGICAL-c430t-2ce68d024b362fe1bbff72b9e8e9a32a676393d7842325ba3fc810fb6ebf5883</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.tsf.2014.05.021$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,3550,23930,23931,25140,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=29013957$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Pin-Chao</creatorcontrib><creatorcontrib>Lin, Chun-Liang</creatorcontrib><creatorcontrib>Su, Yan-Kuin</creatorcontrib><creatorcontrib>Chien, Pei-Ching</creatorcontrib><creatorcontrib>Huang, Guan-Syun</creatorcontrib><creatorcontrib>Kuo, Shao-Chung</creatorcontrib><creatorcontrib>Lyu, Guo-Cin</creatorcontrib><title>Effects of TiO2-doped silicone encapsulation material on the light extraction efficiency of GaN-based blue light-emitting diodes</title><title>Thin solid films</title><description>The effects of silicone encapsulation material doped with TiO2 nanoparticles (NPs) on the light extraction efficiency (LEE) of GaN-based blue light-emitting diodes (LEDs) were investigated. The LED samples were encapsulated with pure silicone, uniform TiO2 NP-doped silicone, TiO2 NP-doped silicone around the chip only, and TiO2 NP-doped silicone encapsulation dome. The average refractive index of silicone was increased by doping with TiO2 NPs with an average diameter of 21nm, and the LEE of GaN-based blue LEDs was also enhanced. Methyl and phenyl silicone were used as encapsulation materials. TiO2 NP-doped methyl silicone encapsulation dome increased the LEE by 10.9%, whereas TiO2 NP-doped phenyl silicone encapsulation dome increased the LEE by 12.9%. The thermal effect, reliability test, and LEE of the LEDs were also analyzed. TiO2 NP-doped silicone encapsulation materials could better enhance LEE compared with pure silicone encapsulation material because of the increased average refractive index, which reduced the total internal reflection at the encapsulation at the air interface.
•Silicone encapsulation of high-power light-emitting diodes (LEDs) was tested.•TiO2-doped silicone encapsulated LEDs showed enhanced light extraction efficiency.•Enhanced temperature stability and reliability were achieved.</description><subject>Applied sciences</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Domes</subject><subject>Electronics</subject><subject>Encapsulation</subject><subject>Exact sciences and technology</subject><subject>Extraction</subject><subject>Light extraction efficiency</subject><subject>Light-emitting diodes</subject><subject>Materials science</subject><subject>Nanoscale materials and structures: fabrication and characterization</subject><subject>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</subject><subject>Optical properties of specific thin films</subject><subject>Optoelectronic devices</subject><subject>Other semiconductors</subject><subject>Other topics in nanoscale materials and structures</subject><subject>Phenyls</subject><subject>Physics</subject><subject>Refractive index</subject><subject>Refractivity</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</subject><subject>Silicone encapsulation</subject><subject>Silicones</subject><subject>Specific materials</subject><subject>TiO2 nanoparticles</subject><subject>Titanium dioxide</subject><issn>0040-6090</issn><issn>1879-2731</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9kbFuHCEQhlHkSDnbeYB0NJHS7GaAXXZXqSLLcSJZdnM9AnawOXHLBTjL7vzo4XynlK6Y4vv_Ed8Q8oVBy4DJ75u2ZNdyYF0LfQucfSArNg5TwwfBzsgKoINGwgSfyHnOGwBgnIsVeb12Dm3JNDq69ve8meMOZ5p98DYuSHGxepf3QRcfF7rVBZPXgda5PCIN_uGxUHwuSds3AJ3z1tfQy6HwRt81RufaZ8L-RDe49aX45YHOPs6YL8lHp0PGz6f3gqx_Xa-vfje39zd_rn7eNrYTUBpuUY4z8M4IyR0yY5wbuJlwxEkLruUgxSTmYey44L3RwtmRgTMSjevHUVyQb8faXYp_95iL2vpsMQS9YNxnxaQEmOTADig7ojbFnBM6tUt-q9OLYqAOstVGVdnqIFtBr6rsmvl6qtfZ6uCSXqzP_4N8AiamfqjcjyOH9atPHpPKb7pw9qmeQc3Rv7PlH07UljU</recordid><startdate>20141103</startdate><enddate>20141103</enddate><creator>Wang, Pin-Chao</creator><creator>Lin, Chun-Liang</creator><creator>Su, Yan-Kuin</creator><creator>Chien, Pei-Ching</creator><creator>Huang, Guan-Syun</creator><creator>Kuo, Shao-Chung</creator><creator>Lyu, Guo-Cin</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20141103</creationdate><title>Effects of TiO2-doped silicone encapsulation material on the light extraction efficiency of GaN-based blue light-emitting diodes</title><author>Wang, Pin-Chao ; Lin, Chun-Liang ; Su, Yan-Kuin ; Chien, Pei-Ching ; Huang, Guan-Syun ; Kuo, Shao-Chung ; Lyu, Guo-Cin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c430t-2ce68d024b362fe1bbff72b9e8e9a32a676393d7842325ba3fc810fb6ebf5883</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Applied sciences</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Domes</topic><topic>Electronics</topic><topic>Encapsulation</topic><topic>Exact sciences and technology</topic><topic>Extraction</topic><topic>Light extraction efficiency</topic><topic>Light-emitting diodes</topic><topic>Materials science</topic><topic>Nanoscale materials and structures: fabrication and characterization</topic><topic>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</topic><topic>Optical properties of specific thin films</topic><topic>Optoelectronic devices</topic><topic>Other semiconductors</topic><topic>Other topics in nanoscale materials and structures</topic><topic>Phenyls</topic><topic>Physics</topic><topic>Refractive index</topic><topic>Refractivity</topic><topic>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</topic><topic>Silicone encapsulation</topic><topic>Silicones</topic><topic>Specific materials</topic><topic>TiO2 nanoparticles</topic><topic>Titanium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Pin-Chao</creatorcontrib><creatorcontrib>Lin, Chun-Liang</creatorcontrib><creatorcontrib>Su, Yan-Kuin</creatorcontrib><creatorcontrib>Chien, Pei-Ching</creatorcontrib><creatorcontrib>Huang, Guan-Syun</creatorcontrib><creatorcontrib>Kuo, Shao-Chung</creatorcontrib><creatorcontrib>Lyu, Guo-Cin</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Thin solid films</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Pin-Chao</au><au>Lin, Chun-Liang</au><au>Su, Yan-Kuin</au><au>Chien, Pei-Ching</au><au>Huang, Guan-Syun</au><au>Kuo, Shao-Chung</au><au>Lyu, Guo-Cin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of TiO2-doped silicone encapsulation material on the light extraction efficiency of GaN-based blue light-emitting diodes</atitle><jtitle>Thin solid films</jtitle><date>2014-11-03</date><risdate>2014</risdate><volume>570</volume><spage>273</spage><epage>276</epage><pages>273-276</pages><issn>0040-6090</issn><eissn>1879-2731</eissn><coden>THSFAP</coden><abstract>The effects of silicone encapsulation material doped with TiO2 nanoparticles (NPs) on the light extraction efficiency (LEE) of GaN-based blue light-emitting diodes (LEDs) were investigated. The LED samples were encapsulated with pure silicone, uniform TiO2 NP-doped silicone, TiO2 NP-doped silicone around the chip only, and TiO2 NP-doped silicone encapsulation dome. The average refractive index of silicone was increased by doping with TiO2 NPs with an average diameter of 21nm, and the LEE of GaN-based blue LEDs was also enhanced. Methyl and phenyl silicone were used as encapsulation materials. TiO2 NP-doped methyl silicone encapsulation dome increased the LEE by 10.9%, whereas TiO2 NP-doped phenyl silicone encapsulation dome increased the LEE by 12.9%. The thermal effect, reliability test, and LEE of the LEDs were also analyzed. TiO2 NP-doped silicone encapsulation materials could better enhance LEE compared with pure silicone encapsulation material because of the increased average refractive index, which reduced the total internal reflection at the encapsulation at the air interface.
•Silicone encapsulation of high-power light-emitting diodes (LEDs) was tested.•TiO2-doped silicone encapsulated LEDs showed enhanced light extraction efficiency.•Enhanced temperature stability and reliability were achieved.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.tsf.2014.05.021</doi><tpages>4</tpages></addata></record> |
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| subjects | Applied sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Domes Electronics Encapsulation Exact sciences and technology Extraction Light extraction efficiency Light-emitting diodes Materials science Nanoscale materials and structures: fabrication and characterization Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of specific thin films Optoelectronic devices Other semiconductors Other topics in nanoscale materials and structures Phenyls Physics Refractive index Refractivity Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Silicone encapsulation Silicones Specific materials TiO2 nanoparticles Titanium dioxide |
| title | Effects of TiO2-doped silicone encapsulation material on the light extraction efficiency of GaN-based blue light-emitting diodes |
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