Abstract

[Formula: see text]O asymmetric quantum barriers on JGS1 quartz glass and [Formula: see text] substrates were prepared by a pulsed laser deposition (PLD) technique. Microstructure characterization confirmed the designed structure. Because of the design of [Formula: see text] asymmetric quantum barrier, representative exciton peaks were observed in the optical absorption spectrum at room-temperature. This confirmed that the designed [Formula: see text] asymmetric quantum barrier structure realized the quantum-binding effect at room-temperature. Moreover, when [Formula: see text], the asymmetric quantum barrier structure had optimum performance compared with other [Formula: see text] values.

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