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Evaluating the Quantum Confinement Effect of Isolated ZnO Nanorod Single-Quantum-Well Structures Using Near-Field Ultraviolet Photoluminescence Spectroscopy
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yatsui, Takashi | - |
dc.contributor.author | Ohtsu, Motoich | - |
dc.contributor.author | An, Sung Jin | - |
dc.contributor.author | Yoo, Jinkyoung | - |
dc.contributor.author | Yi, Gyu-Chul | - |
dc.date.accessioned | 2009-07-14T05:22:49Z | - |
dc.date.available | 2009-07-14T05:22:49Z | - |
dc.date.issued | 2006 | - |
dc.identifier.citation | Opt. Rev. 13 (2006) 218 | en |
dc.identifier.issn | 1340-6000 (print) | - |
dc.identifier.issn | 1349-9432 (online) | - |
dc.identifier.uri | https://hdl.handle.net/10371/5457 | - |
dc.description.abstract | Using 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.sponsorship | The 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.iso | en | en |
dc.publisher | Springer Verlag | en |
dc.publisher | The Optical Society of Japan | - |
dc.subject | ZnO | en |
dc.subject | nanorod | en |
dc.subject | single-quantum-well structures | en |
dc.subject | quantum confinement effect | en |
dc.title | Evaluating the Quantum Confinement Effect of Isolated ZnO Nanorod Single-Quantum-Well Structures Using Near-Field Ultraviolet Photoluminescence Spectroscopy | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 안성진 | - |
dc.contributor.AlternativeAuthor | 유진경 | - |
dc.contributor.AlternativeAuthor | 이규철 | - |
dc.identifier.doi | 10.1007/s10043-006-0218-z | - |
dc.citation.journaltitle | Optical Review | - |
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