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Determination of valence and conduction-band discontinuities at the (Ga,In) P/GaAs heterojunction by C-V profiling (1987)

Rao, M. A. ; Caine, E. J. ; Kroemer, H. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 61 (1987), S. 643-649

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: The valence and conduction band discontinuities for the lattice matched (Ga,In)P/GaAs heterojunction have been determined by capacitance-voltage (C-V) profiling. Both p-p and n-n heterojunctions were profiled, in order to obtain separate and independent values for both the valence-band-edge discontinuity (ΔEv) and the conduction-band discontinuity (ΔEc). The band lineup is found to be of the straddling type with the valence- and conduction-band discontinuities 0.24 and 0.22 eV, respectively, with an estimated accuracy of ±10 meV. Computer reconstruction of the C-V profiles was used to check the consistency of the data. The band offset data indicate that the (Ga,In)P/(Al,Ga)As system should be staggered for a certain range of Al compositions.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.338931

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