Thermal quenching of Er3+-related luminescence in In 1-xGaxP

A. J. Neuhalfen*, B. W. Wessels

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Thermal quenching of the characteristic intracenter luminescence from trivalent Er ions in In1-xGaxP layers was investigated. The Er-doped InGaP alloys were prepared by metalorganic vapor phase epitaxy with compositions ranging from x=0 to 0.31. A thermally activated luminescence quenching was observed with an activation energy that depended on the alloy composition. From measurements of the thermal quenching of the photoluminescence, the energy level of an erbium-related trapping center in the alloys was determined. The variation of the position of the Er-related energy level as a function of alloy composition is explained in terms of a vacuum-referred binding energy model.

Original languageEnglish (US)
Pages (from-to)2657-2659
Number of pages3
JournalApplied Physics Letters
Issue number21
StatePublished - 1992

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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