dc.contributor.authorMakino, T.
dc.contributor.authorChia, C. H.
dc.contributor.authorTuan, N. T.
dc.contributor.authorSun, Handong
dc.contributor.authorSegawa, Y.
dc.contributor.authorKawasaki, M.
dc.contributor.authorOhtomo, A.
dc.contributor.authorTamura, K.
dc.contributor.authorKoinuma, H.
dc.identifier.citationMakino, T., Chia, C. H., Tuan, N. T., Sun, H. D., Segawa, Y., Kawasaki, M., et al. (2000). Room-temperature luminescence of excitons in ZnO/(Mg, Zn)O multi-quantum wells on lattice-matched substrates. Applied Physics Letters, 77(7), 975-977.en_US
dc.description.abstractWe report on the optical properties of ZnO/(Mg, Zn)O multiple quantum wells (MQWs) on lattice-matched ScAlMgO4 substrates fabricated by laser molecular-beam epitaxy. As the well layer thickness decreased down to 7 Å, the photoluminescence (PL) and absorption peaks showed a systematic blueshift, consistent with the quantum-size effect. Moreover, a bright PL of free excitons could be observed even at room temperature. As a result, the PL could be tuned in the energy range of 3.3–3.6 eV by choosing the appropriate barrier height and well layer thickness. The widest tunability on the room-temperature luminescence of the excitons could be attained on the basis of the ZnO quantum structure. These favorable properties could not be attained in the MQWs on lattice-mismatched sapphire substrates.en_US
dc.format.extent3 p.en_US
dc.relation.ispartofseriesApplied Physics Letters.en_US
dc.rightsApplied Physics Letters © copyright 2000 American Institute of Physics. The journal's website is located at http://apl.aip.org/.en_US
dc.titleRoom-temperature luminescence of excitons in ZnO/(Mg,Zn)O multiple-quantum wells on lattice-matched substratesen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionPublished versionen_US

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