Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Characterization of InAs0.91Sb0.09 for use in mid-infrared light-emitting diodes grown by liquid phase epitaxy from Sb-rich solution. .
AU - Krier, A.
AU - Stone, M.
AU - Krier, S. E.
PY - 2007/6
Y1 - 2007/6
N2 - The liquid phase epitaxial growth of InAs0.91Sb0.09 lattice-matched onto GaSb is reported for use in the active region of a mid-infrared light-emitting diode. Epitaxy was carried out from Sb-rich solution using Gd gettering to purify the material. The photoluminescence and electroluminescence emission spectra were studied over the temperature range 4–300 K using different excitation intensities. Interpretation of the resulting spectra revealed the existence of two acceptor levels with activation energies of 8 meV and 16 meV. Room temperature electroluminescence at 4.2 µm was readily obtained from homo-junction p–i–n diodes fabricated from this material. The temperature dependence of the electroluminescence was studied and the decrease in the radiative recombination coefficient was found to be primarily responsible for the luminescence quenching.
AB - The liquid phase epitaxial growth of InAs0.91Sb0.09 lattice-matched onto GaSb is reported for use in the active region of a mid-infrared light-emitting diode. Epitaxy was carried out from Sb-rich solution using Gd gettering to purify the material. The photoluminescence and electroluminescence emission spectra were studied over the temperature range 4–300 K using different excitation intensities. Interpretation of the resulting spectra revealed the existence of two acceptor levels with activation energies of 8 meV and 16 meV. Room temperature electroluminescence at 4.2 µm was readily obtained from homo-junction p–i–n diodes fabricated from this material. The temperature dependence of the electroluminescence was studied and the decrease in the radiative recombination coefficient was found to be primarily responsible for the luminescence quenching.
U2 - 10.1088/0268-1242/22/6/007
DO - 10.1088/0268-1242/22/6/007
M3 - Journal article
VL - 22
SP - 624
EP - 628
JO - Semiconductor Science and Technology
JF - Semiconductor Science and Technology
SN - 0268-1242
IS - 6
ER -