Electron transport through hierarchical self-assembly of GaAs/Al xGa 1-xAs quantum dots

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Abstract

The transmission of electrons through a hierarchical self-assembly of GaAs Alx Ga1-x As quantum dots (QDs) is calculated using the coupled-channel recursion method. Our results reveal that the number of conductance peaks does not change when the barrier widths change, but the intensities decrease as the barrier widths increase. The conductance peaks will shift towards low Fermi energies as the transverse width of GaAs QD increases, as the thickness of GaAs quantum well increases, or as the height of GaAs QDs decreases. Our calculated results may be useful in the application of QDs to photoelectric devices. © 2005 American Institute of Physics.

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Li, S. S., Xia, J. B., & Hirose, K. (2005). Electron transport through hierarchical self-assembly of GaAs/Al xGa 1-xAs quantum dots. Journal of Applied Physics, 98(8). https://doi.org/10.1063/1.2108152

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