Using graded barriers to control the optical properties of ZnO/ Zn 0.7 Mg0.3 O quantum wells with an intrinsic internal electric field

C. R. Hall; L. V. Dao; K. Koike; S. Sasa; H. H. Tan; M. Inoue; M. Yano; C. Jagadish; J. A. Davis

doi:10.1063/1.3428430

Using graded barriers to control the optical properties of ZnO/ Zn _0.7 Mg_0.3 O quantum wells with an intrinsic internal electric field

C. R. Hall, L. V. Dao, K. Koike, S. Sasa, H. H. Tan, M. Inoue, M. Yano, C. Jagadish, J. A. Davis

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

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.

Original language	English
Article number	193117
Journal	Applied Physics Letters
Volume	96
Issue number	19
DOIs	https://doi.org/10.1063/1.3428430
Publication status	Published - 2010

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AU - Hall, C. R.

AU - Dao, L. V.

AU - Koike, K.

AU - Sasa, S.

AU - Tan, H. H.

AU - Inoue, M.

AU - Yano, M.

AU - Jagadish, C.

AU - Davis, J. A.

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Using graded barriers to control the optical properties of ZnO/ Zn _0.7 Mg_0.3 O quantum wells with an intrinsic internal electric field

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