DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sun, YP | ko |
dc.contributor.author | Cho, Yong-Hoon | ko |
dc.contributor.author | Suh, EK | ko |
dc.contributor.author | Lee, HJ | ko |
dc.contributor.author | Choi, RJ | ko |
dc.contributor.author | Hahn, YB | ko |
dc.date.accessioned | 2013-03-04T20:05:57Z | - |
dc.date.available | 2013-03-04T20:05:57Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2004-01 | - |
dc.identifier.citation | APPLIED PHYSICS LETTERS, v.84, no.1, pp.49 - 51 | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | http://hdl.handle.net/10203/83940 | - |
dc.description.abstract | Optical properties and carrier dynamics of high-efficiency green-light-emitting InGaN/GaN multiple quantum wells (MQWs) with graded-In-content were studied by photoluminescence (PL), PL excitation, and time-resolved PL techniques. Two separated InGaN-related peaks were clearly found in PL spectra due to strong phase separation in the well of the graded-In-content InGaN MQWs. The integrated intensity of the main InGaN green emission (similar to510 nm) decreased by only about a factor of 7 with increasing temperature from 10 to 300 K, indicating strong carrier localization and high quantum efficiency. Strong carrier transfer from low-In-content region with weak carrier localization to high-In-content part with strong carrier localization was observed by time-resolved PL. Therefore, we conclude that the effective carrier transfer from weakly to strongly localized states plays an important role to enhance brightness and quantum efficiency in the green-light-emitting InGaN MQWs with graded-In content. (C) 2004 American Institute of Physics. | - |
dc.language | English | - |
dc.publisher | AMER INST PHYSICS | - |
dc.subject | PHASE-SEPARATION | - |
dc.subject | OPTICAL BANDGAP | - |
dc.subject | PHOTOLUMINESCENCE | - |
dc.subject | INN | - |
dc.title | Carrier dynamics of high-efficiency green light emission in graded-indium-content InGaN/GaN quantum wells: An important role of effective carrier transfer | - |
dc.type | Article | - |
dc.identifier.wosid | 000187717600017 | - |
dc.identifier.scopusid | 2-s2.0-0942289174 | - |
dc.type.rims | ART | - |
dc.citation.volume | 84 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 49 | - |
dc.citation.endingpage | 51 | - |
dc.citation.publicationname | APPLIED PHYSICS LETTERS | - |
dc.identifier.doi | 10.1063/1.1637959 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Cho, Yong-Hoon | - |
dc.contributor.nonIdAuthor | Sun, YP | - |
dc.contributor.nonIdAuthor | Suh, EK | - |
dc.contributor.nonIdAuthor | Lee, HJ | - |
dc.contributor.nonIdAuthor | Choi, RJ | - |
dc.contributor.nonIdAuthor | Hahn, YB | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | PHASE-SEPARATION | - |
dc.subject.keywordPlus | OPTICAL BANDGAP | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE | - |
dc.subject.keywordPlus | INN | - |
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