J. Semicond. > 2008, Volume 29 > Issue 2 > 310-314

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Effect of Quantum Confinement on Acceptor Binding Energy in Multiple Quantum Wells

Zheng Weimin, Song Shumei, Lü Yingbo, Wang Aifang and Tao Lin

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Abstract: We experimentally and theoretically investigate the effect of quantum confinement on the acceptor binding energy in multiple quantum wells.A series of Be delta-doped GaAs/AlAs multiple quantum wells with the doping at the well center are grown by molecular beam epitaxy.The quantum width ranges from 3 to 20nm.The photoluminescence spectra are measured at 4, 20, 40, 80, and 120K, respectively.The two-hole transitions of the acceptor-bound exciton from the ground state, 1s3/2 (Γ6) , to the even-parity excited state, 2s3/2 (Γ6) , are clearly observed and the acceptor binding energy is measured.A variational calculation is presented to obtain the acceptor binding energy as a function of well width.The experimental results agree well with the theory.

Key words: effect of quantum confinementshallow acceptor impuritiesdelta-dopedGaAs/AlAs multiple quantum wellsphotoluminescence spectra

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    Received: 18 August 2015 Revised: 15 October 2007 Online: Published: 01 February 2008

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      Zheng Weimin, Song Shumei, Lü Yingbo, Wang Aifang, Tao Lin. Effect of Quantum Confinement on Acceptor Binding Energy in Multiple Quantum Wells[J]. Journal of Semiconductors, 2008, 29(2): 310-314. ****Zheng W M, Song S M, Lü Y, Wang A F, Tao L. Effect of Quantum Confinement on Acceptor Binding Energy in Multiple Quantum Wells[J]. J. Semicond., 2008, 29(2): 310.
      Citation:
      Zheng Weimin, Song Shumei, Lü Yingbo, Wang Aifang, Tao Lin. Effect of Quantum Confinement on Acceptor Binding Energy in Multiple Quantum Wells[J]. Journal of Semiconductors, 2008, 29(2): 310-314. ****
      Zheng W M, Song S M, Lü Y, Wang A F, Tao L. Effect of Quantum Confinement on Acceptor Binding Energy in Multiple Quantum Wells[J]. J. Semicond., 2008, 29(2): 310.

      Effect of Quantum Confinement on Acceptor Binding Energy in Multiple Quantum Wells

      • Received Date: 2015-08-18
      • Accepted Date: 2007-08-02
      • Revised Date: 2007-10-15
      • Published Date: 2008-01-31

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