DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cho, Yong-Hoon | ko |
dc.contributor.author | Gainer, GH | ko |
dc.contributor.author | Lam, JB | ko |
dc.contributor.author | Song, JJ | ko |
dc.contributor.author | Yang, W | ko |
dc.contributor.author | Kang, TW | ko |
dc.date.accessioned | 2013-03-04T22:08:29Z | - |
dc.date.available | 2013-03-04T22:08:29Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2001-12 | - |
dc.identifier.citation | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.39, pp.189 - 192 | - |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.uri | http://hdl.handle.net/10203/84349 | - |
dc.description.abstract | Optical absorption, emission, and carrier recombination characteristics of Al(x)Ga(1-x)N epilayers (x = 0.17 and 0.33) were systematically studied by means of transmission, photoluminescence (PL), and time-resolved PL spectroscopy, respectively. A typical energy-gap shrinkage behavior with temperature was observed for both Al(x)Ga(1-x)N epilayers by absorption measurements, but all anomalous PL temperature dependence was observed: (i) a decrease-increase-decrease behavior of the PL peak energy and (ii) an increase-decrease-increase behavior of the spectral width with increasing temperature. We observed that the effective lifetime was enhanced in the temperature region showing the anomalous temperature-induced emission behavior, reflecting superior luminescence efficiency by suppressing non-radiative processes. The anomalous temperature-induced emission shift is attributed to energy tail states due to alloy potential inhomogeneities in the Al(x)Ga(1-x)N epilayers with large Al content. | - |
dc.language | English | - |
dc.publisher | KOREAN PHYSICAL SOC | - |
dc.subject | QUANTUM-WELLS | - |
dc.subject | GAN | - |
dc.subject | PHOTOLUMINESCENCE | - |
dc.subject | SAPPHIRE | - |
dc.subject | DIODES | - |
dc.subject | SHIFT | - |
dc.title | Absorption, emission, and carrier dynamics study of MOCVD-grown Al(x)Ga(1-x)N alloys | - |
dc.type | Article | - |
dc.identifier.wosid | 000172968700046 | - |
dc.identifier.scopusid | 2-s2.0-0035542189 | - |
dc.type.rims | ART | - |
dc.citation.volume | 39 | - |
dc.citation.beginningpage | 189 | - |
dc.citation.endingpage | 192 | - |
dc.citation.publicationname | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.contributor.localauthor | Cho, Yong-Hoon | - |
dc.contributor.nonIdAuthor | Gainer, GH | - |
dc.contributor.nonIdAuthor | Lam, JB | - |
dc.contributor.nonIdAuthor | Song, JJ | - |
dc.contributor.nonIdAuthor | Yang, W | - |
dc.contributor.nonIdAuthor | Kang, TW | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordPlus | QUANTUM-WELLS | - |
dc.subject.keywordPlus | GAN | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE | - |
dc.subject.keywordPlus | SAPPHIRE | - |
dc.subject.keywordPlus | DIODES | - |
dc.subject.keywordPlus | SHIFT | - |
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