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Evaluating the Quantum Confinement Effect of Isolated ZnO Nanorod Single-Quantum-Well Structures Using Near-Field Ultraviolet Photoluminescence Spectroscopy

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dc.contributor.authorYatsui, Takashi-
dc.contributor.authorOhtsu, Motoich-
dc.contributor.authorAn, Sung Jin-
dc.contributor.authorYoo, Jinkyoung-
dc.contributor.authorYi, Gyu-Chul-
dc.date.accessioned2009-07-14T05:22:49Z-
dc.date.available2009-07-14T05:22:49Z-
dc.date.issued2006-
dc.identifier.citationOpt. Rev. 13 (2006) 218en
dc.identifier.issn1340-6000 (print)-
dc.identifier.issn1349-9432 (online)-
dc.identifier.urihttps://hdl.handle.net/10371/5457-
dc.description.abstractUsing low-temperature near-field spectroscopy, we obtained spatially and spectrally resolved photoluminescence (PL) images of individual ZnO nanorod single-quantum-well structures (SQWs) with a spatial resolution of 20 nm. We observed the dependence of the quantum confinement effect of the PL peak on the well width (L aw), from which the linewidths of near-field PL spectra of ZnO nanorod SQWs (L aw = 2.5 and 3.75 nm) were determined to be as narrow as 3 meV. However, near-field PL spectra of individual SQWs with L aw = 5.0 nm exhibited two PL peaks, presumably due to strains or defects in the ZnMgO in the nanorod SQWs. Since the exciton in a quantum structure is an ideal two-level system with long coherence times, our results provide criteria for designing nanophotonic devices.en
dc.description.sponsorshipThe work at POSTECH was supported by the National Creative Research Initiative Project, Korea and AOARD 05-84 (Quotation
No. FA5209-05-T0369), United States.
en
dc.language.isoenen
dc.publisherSpringer Verlagen
dc.publisherThe Optical Society of Japan-
dc.subjectZnOen
dc.subjectnanoroden
dc.subjectsingle-quantum-well structuresen
dc.subjectquantum confinement effecten
dc.titleEvaluating the Quantum Confinement Effect of Isolated ZnO Nanorod Single-Quantum-Well Structures Using Near-Field Ultraviolet Photoluminescence Spectroscopyen
dc.typeArticleen
dc.contributor.AlternativeAuthor안성진-
dc.contributor.AlternativeAuthor유진경-
dc.contributor.AlternativeAuthor이규철-
dc.identifier.doi10.1007/s10043-006-0218-z-
dc.identifier.doi10.1007/s10043-006-0218-z-
dc.citation.journaltitleOptical Review-
Appears in Collections:
College of Natural Sciences (자연과학대학)Dept. of Physics and Astronomy (물리·천문학부)Physics (물리학전공)Journal Papers (저널논문_물리학전공)
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