Surface-plasmon-enhanced light emitters based on InGaN quantum wells
Since 1993, InGaN light-emitting diodes (LEDs) have been improved and commercialized, but these devices have not fulfilled their original promise as solid-state replacements for light bulbs as their light-emission efficiencies have been limited. Here we describe a method to enhance this efficiency t...
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| Veröffentlicht in: | Nature materials 2004-09, Vol.3 (9), p.601-605 |
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| creator | Scherer, Axel Okamoto, Koichi Niki, Isamu Shvartser, Alexander Narukawa, Yukio Mukai, Takashi |
| description | Since 1993, InGaN light-emitting diodes (LEDs) have been improved and commercialized, but these devices have not fulfilled their original promise as solid-state replacements for light bulbs as their light-emission efficiencies have been limited. Here we describe a method to enhance this efficiency through the energy transfer between quantum wells (QWs) and surface plasmons (SPs). SPs can increase the density of states and the spontaneous emission rate in the semiconductor, and lead to the enhancement of light emission by SP-QW coupling. Large enhancements of the internal quantum efficiencies (ηint) were measured when silver or aluminium layers were deposited 10 nm above an InGaN light-emitting layer, whereas no such enhancements were obtained from gold-coated samples. Our results indicate that the use of SPs would lead to a new class of very bright LEDs, and highly efficient solid-state light sources. |
| doi_str_mv | 10.1038/nmat1198 |
| format | Article |
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Here we describe a method to enhance this efficiency through the energy transfer between quantum wells (QWs) and surface plasmons (SPs). SPs can increase the density of states and the spontaneous emission rate in the semiconductor, and lead to the enhancement of light emission by SP-QW coupling. Large enhancements of the internal quantum efficiencies (ηint) were measured when silver or aluminium layers were deposited 10 nm above an InGaN light-emitting layer, whereas no such enhancements were obtained from gold-coated samples. Our results indicate that the use of SPs would lead to a new class of very bright LEDs, and highly efficient solid-state light sources.</description><identifier>ISSN: 1476-1122</identifier><identifier>EISSN: 1476-4660</identifier><identifier>DOI: 10.1038/nmat1198</identifier><identifier>PMID: 15322535</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>Aluminum ; Biomaterials ; Chemistry and Materials Science ; Condensed Matter Physics ; Crystallization - methods ; Energy Transfer ; Equipment Design ; Equipment Failure Analysis ; Gallium - chemistry ; Gold ; Indium - chemistry ; letter ; Light ; Light sources ; Lighting ; Materials Science ; Materials Testing ; Nanotechnology ; Nanotechnology - instrumentation ; Nanotechnology - methods ; Optical and Electronic Materials ; Optics and Photonics - instrumentation ; Photochemistry - instrumentation ; Quantum Theory ; Semiconductors ; Silver ; Surface Plasmon Resonance - instrumentation ; Surface Plasmon Resonance - methods ; Surface Properties ; Temperature ; Wells</subject><ispartof>Nature materials, 2004-09, Vol.3 (9), p.601-605</ispartof><rights>Springer Nature Limited 2004</rights><rights>Copyright Nature Publishing Group Sep 2004</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1038/nmat1198$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1038/nmat1198$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,2727,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15322535$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Scherer, Axel</creatorcontrib><creatorcontrib>Okamoto, Koichi</creatorcontrib><creatorcontrib>Niki, Isamu</creatorcontrib><creatorcontrib>Shvartser, Alexander</creatorcontrib><creatorcontrib>Narukawa, Yukio</creatorcontrib><creatorcontrib>Mukai, Takashi</creatorcontrib><title>Surface-plasmon-enhanced light emitters based on InGaN quantum wells</title><title>Nature materials</title><addtitle>Nature Mater</addtitle><addtitle>Nat Mater</addtitle><description>Since 1993, InGaN light-emitting diodes (LEDs) have been improved and commercialized, but these devices have not fulfilled their original promise as solid-state replacements for light bulbs as their light-emission efficiencies have been limited. 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instrumentation</subject><subject>Surface Plasmon Resonance - methods</subject><subject>Surface Properties</subject><subject>Temperature</subject><subject>Wells</subject><issn>1476-1122</issn><issn>1476-4660</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqF0c9LwzAUB_AgiptT8C-Q4kHwUH1JmqQ5ytQ5GHpQzyVt0q2jTbemQfzvjewXePH0QvLhS957CF1iuMNA03vbqB5jmR6hIU4EjxPO4Xh7xpiQATpzbglAMGP8FA0wo4Qwyobo8d13pSpMvKqVa1obG7tQtjA6qqv5oo9MU_W96VyUKxcuWxtN7US9RmuvbO-b6MvUtTtHJ6WqnbnY1hH6fH76GL_Es7fJdPwwiy0BSGPCcKJMDrIEYUDyUBnVWIpESiiIxgnDRoNQWAudU6NKoHkAWqShiVzQEbrZ5K66du2N67OmckX4gbKm9S7jPKVMMvovJJJSBgz-h2kClAAO8PoPXLa-s6HbjBAiWColD-hqi3zeGJ2tuqpR3Xe2G3cAtxvgwpOdm-6QgiH7XWW2W-UhzKred2Yftgc_qPOXBA</recordid><startdate>200409</startdate><enddate>200409</enddate><creator>Scherer, Axel</creator><creator>Okamoto, Koichi</creator><creator>Niki, Isamu</creator><creator>Shvartser, Alexander</creator><creator>Narukawa, Yukio</creator><creator>Mukai, Takashi</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>3V.</scope><scope>7SR</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>K9.</scope><scope>KB.</scope><scope>L6V</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>7SP</scope><scope>7U5</scope><scope>L7M</scope><scope>7QF</scope><scope>7X8</scope></search><sort><creationdate>200409</creationdate><title>Surface-plasmon-enhanced light emitters based on InGaN quantum wells</title><author>Scherer, Axel ; Okamoto, Koichi ; Niki, Isamu ; Shvartser, Alexander ; Narukawa, Yukio ; Mukai, Takashi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-n2008-2514aeb09f07e0969f053d1974990c2d1451ed07a1d7db3eaf03b3d1d78112b73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Aluminum</topic><topic>Biomaterials</topic><topic>Chemistry and Materials Science</topic><topic>Condensed Matter Physics</topic><topic>Crystallization - 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Here we describe a method to enhance this efficiency through the energy transfer between quantum wells (QWs) and surface plasmons (SPs). SPs can increase the density of states and the spontaneous emission rate in the semiconductor, and lead to the enhancement of light emission by SP-QW coupling. Large enhancements of the internal quantum efficiencies (ηint) were measured when silver or aluminium layers were deposited 10 nm above an InGaN light-emitting layer, whereas no such enhancements were obtained from gold-coated samples. Our results indicate that the use of SPs would lead to a new class of very bright LEDs, and highly efficient solid-state light sources.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>15322535</pmid><doi>10.1038/nmat1198</doi><tpages>5</tpages></addata></record> |
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| subjects | Aluminum Biomaterials Chemistry and Materials Science Condensed Matter Physics Crystallization - methods Energy Transfer Equipment Design Equipment Failure Analysis Gallium - chemistry Gold Indium - chemistry letter Light Light sources Lighting Materials Science Materials Testing Nanotechnology Nanotechnology - instrumentation Nanotechnology - methods Optical and Electronic Materials Optics and Photonics - instrumentation Photochemistry - instrumentation Quantum Theory Semiconductors Silver Surface Plasmon Resonance - instrumentation Surface Plasmon Resonance - methods Surface Properties Temperature Wells |
| title | Surface-plasmon-enhanced light emitters based on InGaN quantum wells |
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