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http://ir.ncue.edu.tw/ir/handle/987654321/15266
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| Title: | Photoluminescence of ZnSexTe1-x/ZnTe Multiple-quantum-well Structures Grown by Molecular-Beam Epitaxy |
| Authors: | Shih, Yu-Tai;Tsai, Y. L.;Yuan, C. T.;Chen, C. Y.;Yang, C. S.;Chou, W. C. |
| Contributors: | 物理學系 |
| Date: | 2004-12
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| Issue Date: | 2013-01-07T09:25:35Z
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| Publisher: | American Institute of Physics |
| Abstract: | This work investigates photoluminescence (PL) spectra from ZnSexTe1−x∕ZnTe multiple-quantum-well structures grown on GaAs(001) substrates by molecular-beam epitaxy. The PL data reveal that the band alignment of the ZnSexTe1−x∕ZnTe system is type II. The thermal activation energy for quenching the PL intensity was determined from the temperature-dependent PL spectra. The activation energy was found to increase initially and then decrease as the thickness of the ZnSexTe1−x layers decreases from 7 to 3 nm. The temperature-dependent broadening of the PL linewidth was also investigated. The LO-phonon scattering was found to be the dominant broadening mechanism. |
| Relation: | J. Appl. Phys., 96(12): 7267-7271 |
| Appears in Collections: | [物理學系] 期刊論文
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