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Stimulated emission induced by exciton-exciton scattering in ZnO/ZnMgO multiquantum wells up to room temperature
Sun H.D.2; Makino T.2; Tuan N.T.2; Segawa Y.2; Tang Z.K.3; Wong G.K.L.3; Kawasaki M.1; Ohtomo A.1; Tamura K.1; Koinuma H.1
2000-12-25
Source PublicationApplied Physics Letters
ISSN00036951
Volume77Issue:26Pages:4250-4252
AbstractThe mechanism of ultraviolet stimulated emission was investigated in ZnO/ZnMgO multiquantum wells. Stimulated emission induced by exciton-exciton scattering occurred throughout a range of temperatures from 5 K to room temperature. At temperatures higher than 160 K, stimulated emission due to electron-hole plasma recombination was also observed with a higher excitation threshold than that of exciton-exciton scattering. The exciton binding energies of multiquantum wells were larger than that of bulk ZnO and increased with a decrease in the well widths. This enhancement of exciton binding energy is due to the quantum-confinement effect and is favorable for the stability of exciton states. © 2000 American Institute of Physics.
DOI10.1063/1.1333687
URLView the original
Language英語
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Cited Times [WOS]:125   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Tokyo Institute of Technology
2.RIKEN (The Institute of Physical and Chemical Research)
3.Hong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Sun H.D.,Makino T.,Tuan N.T.,et al. Stimulated emission induced by exciton-exciton scattering in ZnO/ZnMgO multiquantum wells up to room temperature[J]. Applied Physics Letters,2000,77(26):4250-4252.
APA Sun H.D..,Makino T..,Tuan N.T..,Segawa Y..,Tang Z.K..,...&Koinuma H..(2000).Stimulated emission induced by exciton-exciton scattering in ZnO/ZnMgO multiquantum wells up to room temperature.Applied Physics Letters,77(26),4250-4252.
MLA Sun H.D.,et al."Stimulated emission induced by exciton-exciton scattering in ZnO/ZnMgO multiquantum wells up to room temperature".Applied Physics Letters 77.26(2000):4250-4252.
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