Research output: Contribution to journal › Article › peer-review
Luminescence of a near-surface GaAs/AlAs heterojunction in AlAs-based heterostructures. / Nikiforov, V. E.; Abramkin, D. S.; Shamirzaev, T. S.
In: Semiconductors, Vol. 51, No. 11, 01.11.2017, p. 1513-1516.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Luminescence of a near-surface GaAs/AlAs heterojunction in AlAs-based heterostructures
AU - Nikiforov, V. E.
AU - Abramkin, D. S.
AU - Shamirzaev, T. S.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - It is necessary to protect the surface of AlAs-based heterostructures from oxidation using a GaAs cap layer because of the high reactivity of aluminum. Thus, the surface region of these heterostructures always contains a GaAs/AlAs heterojunction. Here, it is demonstrated that, under nonresonant photoexcitation, the photoluminescence spectrum of AlAs-based heterostructures features a band associated with this heterojunction. The intensity of this band is determined by the thickness and doping type of the GaAs cap layer.
AB - It is necessary to protect the surface of AlAs-based heterostructures from oxidation using a GaAs cap layer because of the high reactivity of aluminum. Thus, the surface region of these heterostructures always contains a GaAs/AlAs heterojunction. Here, it is demonstrated that, under nonresonant photoexcitation, the photoluminescence spectrum of AlAs-based heterostructures features a band associated with this heterojunction. The intensity of this band is determined by the thickness and doping type of the GaAs cap layer.
UR - http://www.scopus.com/inward/record.url?scp=85035060251&partnerID=8YFLogxK
U2 - 10.1134/S1063782617110203
DO - 10.1134/S1063782617110203
M3 - Article
AN - SCOPUS:85035060251
VL - 51
SP - 1513
EP - 1516
JO - Semiconductors
JF - Semiconductors
SN - 1063-7826
IS - 11
ER -
ID: 9672691