| dc.contributor.author |
Makino, T. |
| dc.contributor.author |
Tuan, N. T. |
| dc.contributor.author |
Sun, Handong. |
| dc.contributor.author |
Chia, C. H. |
| 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 |
2009-11-02T07:25:05Z |
| dc.date.available |
2009-11-02T07:25:05Z |
| dc.date.copyright |
2001 |
| dc.date.issued |
2009-11-02T07:25:05Z |
| dc.identifier.citation |
Makino, T., Tuan, N. T., Sun, H. D., Chia, C. H., Segawa, Y., Kawasaki, M., et al. (2001). Temperature dependence of near ultraviolet photoluminescence in ZnO/(Mg, Zn)O multiple quantum wells. Applied Physics Letters., 78, 1979. |
| dc.identifier.issn |
0003-6951 |
| dc.identifier.uri |
http://hdl.handle.net/%dspace.prefix%/6135 |
| dc.description.abstract |
We report on temperature dependence of excitonic photoluminescence (PL) from ZnO/(Mg, Zn)O multiple quantum wells (MQWs). Two kinds of MQWs having different barrier heights grown by laser molecular-beam epitaxy showed significantly different temperature dependences of PL spectra; in ZnO/Mg0.27Zn0.73O MQWs, the PL peak energy at 50–200 K was a monotonically increasing function of temperature, which was opposite to that ascribed by band gap shrinkage. Moreover, spectra taken at 95–200 K encompassed two peaks, both of which originated from recombination of localized excitons. The temperature-induced shift (redshift-blueshift-peak duplication-redshift) At 5–300 K is caused by a change in the exciton dynamics with increasing temperature due to inhomogeneity and the exciton localization effect. On the other hand, the corresponding dependence in ZnO/Mg0.12Zn0.88O MQWs (lower barrier height) was similar to that in bulk II–VI semiconductors. |
| dc.format.extent |
3 p. |
| dc.language.iso |
en |
| dc.relation.ispartofseries |
Applied Physics Letters. |
| dc.rights |
Applied Physics Letters © copyright 2001 American Institute of Physics. The journal's website is located at http://apl.aip.org/. |
| dc.subject |
DRNTU::Science::Physics::Optics and light. |
| dc.title |
Temperature dependence of near ultraviolet photoluminescence in ZnO/(Mg, Zn)O multiple quantum wells. |
| 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=APPLAB000078000014001979000001 |
| dc.identifier.doi |
http://dx.doi.org/10.1063/1.1357451 |
| dc.description.version |
Published version |
