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dc.contributor.authorRay, S. C.en_US
dc.contributor.authorLow, Y.en_US
dc.contributor.authorTsai, H. M.en_US
dc.contributor.authorPao, C. W.en_US
dc.contributor.authorChiou, J. W.en_US
dc.contributor.authorYang, S. C.en_US
dc.contributor.authorChien, F. Z.en_US
dc.contributor.authorPong, W. F.en_US
dc.contributor.authorTsai, M. -H.en_US
dc.contributor.authorLin, K. F.en_US
dc.contributor.authorCheng, H. M.en_US
dc.contributor.authorHsieh, W. F.en_US
dc.contributor.authorLee, J. F.en_US
dc.date.accessioned2014-12-08T15:12:57Z-
dc.date.available2014-12-08T15:12:57Z-
dc.date.issued2007-12-24en_US
dc.identifier.issn0003-6951en_US
dc.identifier.urihttp://dx.doi.org/10.1063/1.2824396en_US
dc.identifier.urihttp://hdl.handle.net/11536/9995-
dc.description.abstractThe electronic structures and optical properties of various sizes of ZnO quantum dots (QDs) were studied using x-ray absorption, photoluminescence, and Raman spectroscopy. The increase in the intensity ratio of the second-order Raman spectra of longitudinal optical mode and its fundamental mode, which is related to the strength of the electron-phonon coupling (EPC), is found to increase with the size of QD. The trend of EPC also correlates with the increase of the intensity ratio of the O 2p(pi) (I(pi)) and 2p(sigma) (I(sigma)) orbital features in the O K-edge x-ray absorption near-edge structure (XANES) as the size of QD increases. The EPC and XANES results suggest that the crystal orientations of ZnO QDs are approximately aligned with the c axis parallel with the polarization of x-ray photons. (c) 2007 American Institute of Physics.en_US
dc.language.isoen_USen_US
dc.titleSize dependence of the electronic structures and electron-phonon coupling in ZnO quantum dotsen_US
dc.typeArticleen_US
dc.identifier.doi10.1063/1.2824396en_US
dc.identifier.journalAPPLIED PHYSICS LETTERSen_US
dc.citation.volume91en_US
dc.citation.issue26en_US
dc.citation.epageen_US
dc.contributor.department光電工程學系zh_TW
dc.contributor.departmentDepartment of Photonicsen_US
dc.identifier.wosnumberWOS:000251987400020-
dc.citation.woscount6-
Appears in Collections:Articles


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