| dc.contributor.author |
Makino, T. |
| dc.contributor.author |
Chia, C. H. |
| dc.contributor.author |
Tuan, N. T. |
| dc.contributor.author |
Sun, Handong. |
| dc.contributor.author |
Segawa, Y. |
| dc.contributor.author |
Kawasaki, M. |
| dc.contributor.author |
Ohtomo, A. |
| dc.contributor.author |
Tamura, K. |
| dc.contributor.author |
Koinuma, H. |
| dc.date.accessioned |
2009-11-13T01:51:38Z |
| dc.date.available |
2009-11-13T01:51:38Z |
| dc.date.copyright |
2000 |
| dc.date.issued |
2009-11-13T01:51:38Z |
| dc.identifier.citation |
Makino, 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. |
| dc.identifier.issn |
0003-6951 |
| dc.identifier.uri |
http://hdl.handle.net/10220/6145 |
| dc.description.abstract |
We 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. |
| dc.format.extent |
3 p. |
| dc.language.iso |
en |
| dc.relation.ispartofseries |
Applied Physics Letters. |
| dc.rights |
Applied Physics Letters © copyright 2000 American Institute of Physics. The journal's website is located at http://apl.aip.org/. |
| dc.subject |
DRNTU::Science::Physics. |
| dc.title |
Room-temperature luminescence of excitons in ZnO/(Mg,Zn)O multiple-quantum wells on lattice-matched substrates. |
| dc.type |
Journal Article |
| dc.contributor.school |
School of Physical and Mathematical Sciences |
| dc.identifier.openurl |
http://scitation.aip.org.ezlibproxy1.ntu.edu.sg/getabs/servlet/GetabsServlet?prog=normal&id=APPLAB000077000007000975000001 |
| dc.identifier.doi |
http://dx.doi.org/10.1063/1.1289066 |
| dc.description.version |
Published version |
