TY - JOUR
T1 - Molecular beam epitaxy growth of ZnxCd(1-x)Se/Znx′Cdy′Mg(1-x′-y′)Se-InP quantum cascade structures
AU - Charles, W. O.
AU - Franz, K. J.
AU - Shen, A.
AU - Zhang, Q.
AU - Gong, Y.
AU - Li, B.
AU - Gmachl, Claire F.
AU - Tamargo, M. C.
N1 - Funding Information:
This work is supported by NSF Grant no. EEC-0540832 (MIRTHE-ERC) and NASA Grant no. NCC-1-03009 (COSI). K.J.F. gratefully acknowledges the support of the NSF Graduate Research Fellowship Program.
PY - 2008/12/1
Y1 - 2008/12/1
N2 - We report growth by molecular beam epitaxy of a ZnxCd(1-x)Se/Znx′Cdy′Mg(1-x′-y′)Se quantum cascade (QC) structure that was designed for electroluminescence (EL) at ∼4.5 μm. The QC active region is comprised of a two-well asymmetric coupled quantum well (ACQW) structure, which was thoroughly investigated to establish the growth conditions for the QC structure. After growth of several ACQW test samples, the conditions for growth were optimized for the QC structure. In-situ RHEED, photoluminescence (PL), high-resolution X-ray diffraction (HR-XRD) and Fourier transform infrared (FTIR) spectroscopy results were used for characterization. The QC structure grown under these conditions exhibited EL at 4.8 μm, in excellent agreement with the design value.
AB - We report growth by molecular beam epitaxy of a ZnxCd(1-x)Se/Znx′Cdy′Mg(1-x′-y′)Se quantum cascade (QC) structure that was designed for electroluminescence (EL) at ∼4.5 μm. The QC active region is comprised of a two-well asymmetric coupled quantum well (ACQW) structure, which was thoroughly investigated to establish the growth conditions for the QC structure. After growth of several ACQW test samples, the conditions for growth were optimized for the QC structure. In-situ RHEED, photoluminescence (PL), high-resolution X-ray diffraction (HR-XRD) and Fourier transform infrared (FTIR) spectroscopy results were used for characterization. The QC structure grown under these conditions exhibited EL at 4.8 μm, in excellent agreement with the design value.
KW - A1. Electroluminescence
KW - A3. Asymmetric coupled quantum wells
KW - B1. Zinc cadmium selenide
KW - B3. Quantum cascade laser
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U2 - 10.1016/j.jcrysgro.2008.08.056
DO - 10.1016/j.jcrysgro.2008.08.056
M3 - Article
AN - SCOPUS:56949095702
SN - 0022-0248
VL - 310
SP - 5380
EP - 5384
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 24
ER -