1996
DOI: 10.1063/1.117720
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A magneto-photoluminescence investigation of the band offset between InAs and arsenic-rich InAs1−xSbx alloys

Abstract: Articles you may be interested inThe electronic structure of InGaAs/InP quantum wells measured by Fourier transform photoluminescence excitation spectroscopy InAs/InAs 0.865 Sb 0.135 quantum wells are characterized using magneto-photoluminescence. Bandto-band transitions are found at energies lower than the band gaps of either the InAs or the InAs 0.865 Sb 0.135 with photoluminescence emission at wavelengths up to 4.8 m. By modeling the quantum size shifts of the photoluminescence transitions and their energy … Show more

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Cited by 16 publications
(5 citation statements)
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References 6 publications
(7 reference statements)
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“…Agreement is good for all four wells, e.g., ϭ0.0179/0.0248m 0 for the 318/53-Åwells, respectively, compared with the experimental values of ϭ0.015/0.023Ϯ0.001m 0 , using the band parameters of Table I and a fractional offset Q c ϭ2.27, remarkably consistent with the value we determine from our magnetotransmission data. A similar conclusion is reached with our own experiments on a multiwell sample, 24 where the type-IIB alignment could not fit the magnetophotoluminescence.…”
Section: Resultssupporting
confidence: 87%
“…Agreement is good for all four wells, e.g., ϭ0.0179/0.0248m 0 for the 318/53-Åwells, respectively, compared with the experimental values of ϭ0.015/0.023Ϯ0.001m 0 , using the band parameters of Table I and a fractional offset Q c ϭ2.27, remarkably consistent with the value we determine from our magnetotransmission data. A similar conclusion is reached with our own experiments on a multiwell sample, 24 where the type-IIB alignment could not fit the magnetophotoluminescence.…”
Section: Resultssupporting
confidence: 87%
“…The discrepancy between the calculated bandgap and the measured PL transition energy is due to the type II band alignment, as predicted by theory 17 and experimentally confirmed. 16,20,24 For the simulations, the software nextnano 3 (Ref. 25) was used, and rectangular quantum wells with periodic boundary conditions were assumed for the MQW samples.…”
Section: A Photoluminescence Resultsmentioning
confidence: 99%
“…Various conflicting reports of the band lineups have been reported, including type I, 15 type IIa (Ref. 16) (electrons in the InAsSb layers), and type IIb (Ref. 17) (electrons in the InAs layers).…”
mentioning
confidence: 96%
“…Figure 8 shows three possible band alignments between InAs and InAs 1−x Sb x including two type-II band alignments: with the InAs CB higher in energy than the InAsSb CB and with the InAsSb CB higher in energy than the InAs CB. From these two papers [ 20 , 58 ], the following conclusions could be drawn: the type-I alignment is notified for SLs with low Sb compositions and ordering typical for the InAs1-xSbx layer, which is characterized by a lower alloy bandgap than that of a random alloy with equal composition x [ 59 ], the type-IIa alignment is based on argued conclusions for the reduced mass values of the lowest two transitions given by PL and magneto-transmission measurement results [ 60 , 61 ], type-IIb, is chosen for InAs/InAs0.93Sb0.07 SLs on InAs substrates [ 62 ]. …”
Section: Inassb Alloy Propertiesmentioning
confidence: 99%
“…the type-IIa alignment is based on argued conclusions for the reduced mass values of the lowest two transitions given by PL and magneto-transmission measurement results [ 60 , 61 ],…”
Section: Inassb Alloy Propertiesmentioning
confidence: 99%