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Room-temperature photoluminescence of Ga0.96In0.04As0.11Sb0-89 lattice matched to InAs. .

Research output: Contribution to journalJournal article

<mark>Journal publication date</mark>08/2004
<mark>Journal</mark>Journal of Electronic Materials
Issue number8
Number of pages6
Pages (from-to)867-872
<mark>Original language</mark>English


Photoluminescence (PL) has been observed at room temperature from a Ga0.96In0.04As0.11Sb0.89 quaternary solid solution for the first time. High-quality epitaxial layers of n-type (Te-doped) Ga0.96In0.04As0.11Sb0.89 with low In content were grown by liquid phase epitaxy (LPE) lattice-matched to InAs(100) substrates from a Ga-rich melt. The PL properties of the material were investigated over a wide temperature range, and the principal radiative transitions were identified. In the temperature range <150 K, donor-acceptor recombination involving the first and second ionization state of native antisite defects was the dominant radiative-recombination process, whereas interband recombination was found to dominate at room temperature.