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- W2023979957 abstract "We report on the observation of room temperature direct band gap photoluminescence in compressively strained-Ge multiple quantum wells with Ge-rich SiGe barriers. A detailed experimental study of the temperature dependence of the photoluminescence is carried out from 5 K up to room temperature. We find that the direct gap photoluminescence at room temperature is due to the thermal excitation of carriers from L-type to Γ-type confined states. Room temperature photoluminescence shows that Ge/SiGe multiple quantum wells are promising candidates for efficient light emitting devices monolithically integrated on Si." @default.
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- W2023979957 date "2011-01-17" @default.
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- W2023979957 title "Room temperature photoluminescence of Ge multiple quantum wells with Ge-rich barriers" @default.
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- W2023979957 doi "https://doi.org/10.1063/1.3541782" @default.
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