Home List of Titles Using graded barriers to control the optical properties of ZnO/Zn0.7Mg0.3O quantum wells with an intrinsic internal electric field
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- Using graded barriers to control the optical properties of ZnO/Zn0.7Mg0.3O quantum wells with an intrinsic internal electric field
- Hall, C. R.; Dao, L. V.; Koike, K.; Sasa, S.; Tan, H. H.; Inoue, M.; Yano, M.; Jagadish, C.; Davis, J. A.
- Quantum wells with graded barriers are demonstrated as a means to control both the transition energy and electron-hole wave function overlap for quantum wells with an intrinsic internal electric field. In the case of c-axis grown ZnO/ZnMgO quantum wells, the graded barriers are produced by stepping the magnesium composition during the growth process. Four quantum wells with different structures are examined, where each well has similar transition energy, yet a wide range of wave function overlaps are observed. Photoluminescence and time resolved photoluminescence show good agreement with calculations.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Atom Optics and Ultrafast Spectroscopy
- Applied Physics Letters, Vol. 96, no. 19 (May 2010), paper no. 193117
- Publication year
- FOR Code(s)
- 01 Mathematical Sciences; 02 Physical Sciences
- II-VI semiconductors; Magnesium compounds; Photoluminescence; Semiconductor growth; Semiconductor quantum wells; Spectra; Time resolution; Wave functions; Zinc compounds
- American Institute of Physics
- Publisher URL
- Copyright © 2010 American Institute of Physics. Published version of this paper reproduced here in accordance with the copyright policy of the publisher.
- Additional information
- The authors acknowledge support from the Australian Research Council and Lastek.
- Full text
- Peer reviewed