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 - Temperature dependence of mid-infrared electroluminescence in type II InAsSb/InAs multi-quantum well light-emitting diodes.
AU - Carrington, P. J.
AU - Zhuang, Q.
AU - Yin, M.
AU - Krier, A.
PY - 2009/7
Y1 - 2009/7
N2 - Intense room temperature emission at 3.7 mu m is reported from light-emitting diodes (LEDs) which contain ten InAsSb/InAs type II multi quantum wells grown by molecular beam epitaxy. Interpretation of the spectra revealed the existence of two confined heavy-hole states with emission peaks of 0.33 and 0.37 eV at 4 K. Analysis of the temperature dependence of the electroluminescence shows that emission occurred predominantly from the excited heavy-hole state at high temperatures. At room temperature, the devices produced a quasi-cw power of 12 mu W at 100 mA injection current corresponding to an internal quantum efficiency of 2.2%.
AB - Intense room temperature emission at 3.7 mu m is reported from light-emitting diodes (LEDs) which contain ten InAsSb/InAs type II multi quantum wells grown by molecular beam epitaxy. Interpretation of the spectra revealed the existence of two confined heavy-hole states with emission peaks of 0.33 and 0.37 eV at 4 K. Analysis of the temperature dependence of the electroluminescence shows that emission occurred predominantly from the excited heavy-hole state at high temperatures. At room temperature, the devices produced a quasi-cw power of 12 mu W at 100 mA injection current corresponding to an internal quantum efficiency of 2.2%.
U2 - 10.1088/0268-1242/24/7/075001
DO - 10.1088/0268-1242/24/7/075001
M3 - Journal article
VL - 24
SP - 075001
JO - Semiconductor Science and Technology
JF - Semiconductor Science and Technology
SN - 0268-1242
IS - 7
ER -