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Theoretical design demonstrates enhanced exciton binding and oscillator strength in an asymmetric quantum well, suggesting improved optical efficiency for nanophotonic devices.
A new one-dimensional quantum well structure is proposed. The structure is created by converting one side of the potential barrier of an asymmetric quantum well into a periodically indented potential. Both the electron and hole states are confined in the one-dimensional channel adjacent to the indented region of the side potential barrier, making it possible to achieve enhanced exciton binding energies and oscillator strengths for optical properties.
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Chang et al. (1985) studied this question.
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