Rights statement: Author(s): P. J. Carrington; E. Repiso; Q. Lu; H. Fujita; A. R. J. Marshall; Q. Zhuang; A. Krier InSb-based quantum dot nanostructures for mid-infrared photonic devices Proc. SPIE 9919, Nanophotonic Materials XIII, 99190C (16 September 2016); doi: 10.1117/12.2236869 Copyright 2016 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Accepted author manuscript, 626 KB, PDF document
Available under license: CC BY: Creative Commons Attribution 4.0 International License
Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - InSb-based quantum dot nanostructures for mid-infrared photonic devices
AU - Carrington, Peter James
AU - Repiso Menendez, Eva
AU - Lu, Qi
AU - Fujita, Hiromi
AU - Marshall, Andrew Robert Julian
AU - Zhuang, Qiandong
AU - Krier, Anthony
N1 - Author(s): P. J. Carrington; E. Repiso; Q. Lu; H. Fujita; A. R. J. Marshall; Q. Zhuang; A. Krier InSb-based quantum dot nanostructures for mid-infrared photonic devices Proc. SPIE 9919, Nanophotonic Materials XIII, 99190C (16 September 2016); doi: 10.1117/12.2236869 Copyright 2016 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
PY - 2016/9/16
Y1 - 2016/9/16
N2 - Novel InSb quantum dot (QD) nanostructures grown by molecular beam epitaxy (MBE) are investigated in order to improve the performance of light sources and detectors for the technologically important mid-infrared (2-5 μm) spectral range. Unlike the InAs/GaAs system which has a similar lattice mismatch, the growth of InSb/InAs QDs by MBE is a challenging task due to Sb segregation and surfactant effects. These problems can be overcome by using an Sb-As exchange growth technique to realize uniform, dense arrays (dot density ~1012 cm-2) of extremely small (mean diameter ~2.5 nm) InSb submonolayer QDs in InAs. Light emitting diodes (LEDs) containing ten layers of InSb QDs exhibit bright electroluminescence peaking at 3.8 μm at room temperature. These devices show superior temperature quenching compared with bulk and quantum well (QW) LEDs due to a reduction in Auger recombination. We also report the growth of InSb QDs in InAs/AlAsSb ‘W’ QWs grown on GaSb substrates which are designed to increase the electron-hole (e-h) wavefunction overlap to ~75%. These samples exhibit very good structural quality and photoluminescence peaking near 3.0 μm at low temperatures.
AB - Novel InSb quantum dot (QD) nanostructures grown by molecular beam epitaxy (MBE) are investigated in order to improve the performance of light sources and detectors for the technologically important mid-infrared (2-5 μm) spectral range. Unlike the InAs/GaAs system which has a similar lattice mismatch, the growth of InSb/InAs QDs by MBE is a challenging task due to Sb segregation and surfactant effects. These problems can be overcome by using an Sb-As exchange growth technique to realize uniform, dense arrays (dot density ~1012 cm-2) of extremely small (mean diameter ~2.5 nm) InSb submonolayer QDs in InAs. Light emitting diodes (LEDs) containing ten layers of InSb QDs exhibit bright electroluminescence peaking at 3.8 μm at room temperature. These devices show superior temperature quenching compared with bulk and quantum well (QW) LEDs due to a reduction in Auger recombination. We also report the growth of InSb QDs in InAs/AlAsSb ‘W’ QWs grown on GaSb substrates which are designed to increase the electron-hole (e-h) wavefunction overlap to ~75%. These samples exhibit very good structural quality and photoluminescence peaking near 3.0 μm at low temperatures.
U2 - 10.1117/12.2236869
DO - 10.1117/12.2236869
M3 - Journal article
VL - 9919
JO - Proceedings of SPIE
JF - Proceedings of SPIE
SN - 0277-786X
M1 - 99190C
ER -