Nan MA, Cheng DOU, Man WANG, Liang-Qing ZHU, Xi-Ren CHEN, Feng LIU, Jun SHAO. Infrared emission efficiency of δ - doped GaSbBi single quantum well by photoluminescence spectroscopy[J]. Journal of Infrared and Millimeter Waves, 2022, 41(1): 2021113
- Journal of Infrared and Millimeter Waves
- Vol. 41, Issue 1, 2021113 (2022)
Fig. 1. Variable temperature PL spectrum of GaSbBi SQW with a sheet density of 1.14×1012 cm-2
Fig. 2. 100 mW PL spectra of GaSbBi SQW samples and Substrates with different sheet densities
Fig. 3. Power-dependent PL spectra of GaSbBi SQW with a sheet density of 1.14×1012 cm-2 and the reference. Inset：Enlargement for the region I of the doped sample
Fig. 4. Excitation power-dependent PL integral intensity in region I for GaSbBi SQW samples with different sheet densities and the references. Sheet density：（a）1.14×1012 cm-2，（b）2.28×1012 cm-2，（c）3.42×1012 cm-2，and（d）4.56×1012 cm-2
Fig. 5. Relative reduction of emission efficiency in region Ⅰ（a）and Ⅱ（b）
Fig. 6. The schematic diagram of electronic transition and recombination process
Fig. 7. Excitation power-dependent PL integral intensity in region II，sheet density：（a）1.14×1012 cm-2，（b）2.28×1012 cm-2，（c）3.42×1012 cm-2，and（d）4.56×1012 cm-2
Fig. 8. PL peak energy vs excitation power for GaSbBi SQWs with different sheet density and the references. Sheet density：（a）1.14×1012 cm-2，（b）2.28×1012 cm-2，（c）3.42×1012 cm-2，and（d）4.56×1012 cm-2
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Table 1. Sheet densities of δ-doped GaSbBi SQW
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Table 2. FWHMs of zone I for the GaSbBi SQWs with different areal densities and the references as well
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Table 3. Fitting slopes for PL integral intensity in region I
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Table 4. Fitting slopes for PL integral intensity in region II
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