Research output: Contribution to journal › Article › peer-review
Luminescent properties of spatially ordered Ge/Si quantum dots epitaxially grown on a pit-patterned “silicon-on-insulator” substrate. / Smagina, Zh V.; Zinovyev, V. A.; Zinovieva, A. F. et al.
In: Journal of Luminescence, Vol. 249, 119033, 09.2022.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Luminescent properties of spatially ordered Ge/Si quantum dots epitaxially grown on a pit-patterned “silicon-on-insulator” substrate
AU - Smagina, Zh V.
AU - Zinovyev, V. A.
AU - Zinovieva, A. F.
AU - Stepikhova, M. V.
AU - Peretokin, A. V.
AU - Rodyakina, E. E.
AU - Dyakov, S. A.
AU - Novikov, A. V.
AU - Dvurechenskii, A. V.
N1 - Funding Information: This work was supported by the Russian Science Foundation (Grant 21-72-20184 ). Publisher Copyright: © 2022
PY - 2022/9
Y1 - 2022/9
N2 - The results of studying the luminescent properties of epitaxially grown structures with spatially ordered Ge/Si nanoislands (quantum dots), in which the pit-patterned “silicon-on-insulator” substrates serve both for the spatial ordering of quantum dots and for the two-dimensional photonic crystal formation, are presented. It is found that with a certain choice of pit-patterned substrate parameters (diameter of pits and their spatial period), in the photoluminescence spectra of such structures, the multiple narrow peaks are observed. In addition, a significant increase in the quantum dot luminescence signal intensity occurs in the near-infrared range. The effects are related to resonance interaction of quantum dot emitters with photonic crystal modes. The luminescence enhancement effect persists up to room temperatures.
AB - The results of studying the luminescent properties of epitaxially grown structures with spatially ordered Ge/Si nanoislands (quantum dots), in which the pit-patterned “silicon-on-insulator” substrates serve both for the spatial ordering of quantum dots and for the two-dimensional photonic crystal formation, are presented. It is found that with a certain choice of pit-patterned substrate parameters (diameter of pits and their spatial period), in the photoluminescence spectra of such structures, the multiple narrow peaks are observed. In addition, a significant increase in the quantum dot luminescence signal intensity occurs in the near-infrared range. The effects are related to resonance interaction of quantum dot emitters with photonic crystal modes. The luminescence enhancement effect persists up to room temperatures.
KW - Luminescence
KW - Photonic crystal
KW - Quantum dots
KW - SiGe heterostructures
KW - Spatial ordering
UR - http://www.scopus.com/inward/record.url?scp=85131421908&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/680c3035-852b-37da-995d-56b04aacf175/
U2 - 10.1016/j.jlumin.2022.119033
DO - 10.1016/j.jlumin.2022.119033
M3 - Article
AN - SCOPUS:85131421908
VL - 249
JO - Journal of Luminescence
JF - Journal of Luminescence
SN - 0022-2313
M1 - 119033
ER -
ID: 36437832