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https://hdl.handle.net/10356/101293
Title: | Temperature dependence of excitonic absorption spectra in ZnO/Zn0.88Mg0.12O multiquantum wells grown on lattice-matched substrates | Authors: | Sun, Handong Makino, T. Tuan, N. T. Segawa, Y. Kawasaki, M. Ohtomo, A. Tamura, K. Koinuma, H. |
Keywords: | DRNTU::Science::Physics::Optics and light | Issue Date: | 2001 | Source: | Sun, H. D., Makino, T., Tuan, N. T., Segawa, Y., Kawasaki, M., Ohtomo, A., et al. (2001). Temperature dependence of excitonic absorption spectra in ZnOÕZn0.88Mg0.12O multiquantum wells grown on lattice-matched substrates. Applied Physics Letters., 78(17), 2464-2466. | Series/Report no.: | Applied Physics Letters. | Abstract: | The excitonic properties of high-quality ZnO/Zn0.88Mg0.12O multiquantum wells grown by laser-molecular-beam epitaxy were investigated using temperature-dependent optical absorption spectra from 5 K to room temperature. The strength of exciton-longitudinal-optical (LO) –phonon coupling was deduced from the temperature dependence of the linewidth of the fundamental excitonic peak. Effective reduction of the exciton (LO) -phonon coupling with decreasing the well width was observed, which is consistent with the confinement-induced enhancement of the exciton binding energy. The thermal shift of the lowest excitonic energy is independent of well width, indicating that the strain effect is negligible for this material. | URI: | https://hdl.handle.net/10356/101293 http://hdl.handle.net/10220/6155 |
ISSN: | 0003-6951 | DOI: | 10.1063/1.1367300 | Schools: | School of Physical and Mathematical Sciences | Rights: | Applied Physics Letters © copyright 2001 American Institute of Physics. The journal's website is located at http://apl.aip.org/. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SPMS Journal Articles |
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ApplPhysLett_78_2464.pdf | 55.11 kB | Adobe PDF | View/Open |
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