Enhancement of the Er3+ emissions from AlGaAs:Er codoped with oxygen

Codoping AlxGa1−xAs with both erbium and oxygen drastically enhanced the intensity of the Er3+-4f emissions over that observed from AlxGa1−xAs doped with Er alone, however, similar codoping in GaAs did not result in any enhancement. It is believed that the enhancement of the intra-4f emissions is ei...

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Veröffentlicht in:Applied physics letters 1993-07, Vol.63 (2), p.216-218
Hauptverfasser: COLON, J. E, ELSAESSER, D. W, YEO, Y. K, HENGEHOLD, R. L, POMRENKE, G. S
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Sprache:eng
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Zusammenfassung:Codoping AlxGa1−xAs with both erbium and oxygen drastically enhanced the intensity of the Er3+-4f emissions over that observed from AlxGa1−xAs doped with Er alone, however, similar codoping in GaAs did not result in any enhancement. It is believed that the enhancement of the intra-4f emissions is either due to the formation of Er-Al-O complexes or Er-O complexes along with the variation of the band gap in AlxGa1−xAs, or both.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.110345