Search Results - "Bloshkin, A. A."

Phonon bottleneck in p -type Ge/Si quantum dots by Yakimov, A. I., Kirienko, V. V., Armbrister, V. A., Bloshkin, A. A., Dvurechenskii, A. V.

“…We study the effect of quantum dot size on the mid-infrared photo- and dark current, photoconductive gain, and hole capture probability in ten-period p-type…”
Get full text

Photovoltaic Ge/SiGe quantum dot mid-infrared photodetector enhanced by surface plasmons by Yakimov, A I, Kirienko, V V, Bloshkin, A A, Armbrister, V A, Dvurechenskii, A V, Hartmann, J-M

“…We report the fabrication and characterization of a multilayer Ge quantum dot detector grown on Si xGex virtual substrate (x = 0.18) for photovoltaic mid-wave…”
Get full text

Plasmonic Field Enhancement by Metallic Subwave Lattices on Silicon in the Near-Infrared Range by Yakimov, A. I., Bloshkin, A. A., Dvurechenskii, A. V.

“…The enhancement of the electric field in plasmonic nanostructures on a Si substrate in the near-infrared range is studied theoretically. Two-dimensional square…”
Get full text

Increase in the Photocurrent in Layers of Ge/Si Quantum Dots by Modes of a Two-Dimensional Photonic Crystal by Yakimov, A. I., Bloshkin, A. A., Kirienko, V. V., Dvurechenskii, A. V., Utkin, D. E.

“…It has been found that the introduction of layers of Ge/Si quantum dots in a two-dimensional photonic crystal leads to a strong (up to a factor of 5) increase…”
Get full text

Effect of Adhesive Layers on Photocurrent Enhancement in Near-Infrared Quantum-Dot Photodetectors Coupled with Metal-Nanodisk Arrays by Yakimov, A. I., Kirienko, V. V., Bloshkin, A. A., Dvurechenskii, A. V., Utkin, D. E.

“…Plasmon-enhanced planar Ge/Si photodetectors with Ge quantum dots on silicon-on-insulator substrates coupled with regular arrays of metal nanodisks on their…”
Get full text

Angle-Selective Photodetection in Ge/Si Quantum Dot Photodiodes Enhanced by Microstructured Hole Arrays by Yakimov, Andrew I., Kirienko, Victor V., Bloshkin, Aleksei A., Utkin, Dmitrii E., Dvurechenskii, Anatoly V.

“…We report on the near-infrared (NIR) photoresponse of a micropatterned Ge/Si quantum dot (QD) pin photodiode at different angles of radiation incidence. The…”
Get full text

Plasmon Enhancement of the Electric Field in Mid-Infrared Ge/Si Quantum-Dot Photodetectors with Different Thicknesses of the Active Region by Bloshkin, A. A., Yakimov, A. I., Dvurechenskii, A. V.

“…The spatial distribution of the electric field in Ge/Si photodetector heterostructures coated with a gold film containing a regular two-dimensional array of…”
Get full text

Localization of electrons in dome-shaped GeSi/Si islands by Yakimov, A. I., Kirienko, V. V., Bloshkin, A. A., Armbrister, V. A., Kuchinskaya, P. A., Dvurechenskii, A. V.

“…We report on intraband photocurrent spectroscopy of dome-shaped GeSi islands embedded in a Si matrix with n+-type bottom and top Si layers. An in-plane…”
Get full text

Near-Infrared Photoresponse in Ge/Si Quantum Dots Enhanced by Photon-Trapping Hole Arrays by Yakimov, Andrew I., Kirienko, Victor V., Bloshkin, Aleksei A., Utkin, Dmitrii E., Dvurechenskii, Anatoly V.

“…Group-IV photonic devices that contain Si and Ge are very attractive due to their compatibility with integrated silicon photonics platforms. Despite the recent…”
Get full text

Structural Properties and Energy Spectrum of Novel GaSb/AlP Self-Assembled Quantum Dots by Abramkin, Demid S, Petrushkov, Mikhail O, Bogomolov, Dmitrii B, Emelyanov, Eugeny A, Yesin, Mikhail Yu, Vasev, Andrey V, Bloshkin, Alexey A, Koptev, Eugeny S, Putyato, Mikhail A, Atuchin, Victor V, Preobrazhenskii, Valery V

“…In this work, the formation, structural properties, and energy spectrum of novel self-assembled GaSb/AlP quantum dots (SAQDs) were studied by experimental…”
Get full text

Emission Enhancement of Ge/Si Quantum Dots in Hybrid Structures with Subwavelength Lattice of Al Nanodisks by Zinovyev, Vladimir A., Smagina, Zhanna V., Zinovieva, Aigul F., Bloshkin, Aleksei A., Dvurechenskii, Anatoly V., Rodyakina, Ekaterina E., Stepikhova, Margarita V., Peretokin, Artem V., Novikov, Alexey V.

“…The effects of resonance interaction of plasmonic and photonic modes in hybrid metal-dielectric structures with square Al nanodisk lattices coupled with a Si…”
Get full text

Energy Spectrum of Charge Carriers in Elastically Strained Assemblies of Ge/Si Quantum Dots by Bloshkin, A. A., Yakimov, A. I., Zinovieva, A. F., Zinoviev, V. A., Dvurechenskii, A. V.

“…The results of studying the energy spectrum of electrons and holes localized in second-type Ge/Si heterostructures with Ge quantum dots are presented. In such…”
Get full text

Tailoring the optical field enhancement in Si-based structures covered by nanohole arrays in gold films for near-infrared photodetection by Yakimov, A.I., Bloshkin, A.A., Dvurechenskii, A.V.

“…•The near-infrared photodetection in Si-based heterostructures is enhanced by metallic nanohole arrays.•The maximum plasmonic enhancement is reached when the…”
Get full text

Valence-band offsets in strained SiGeSn/Si layers with different tin contents by Bloshkin, A. A., Yakimov, A. I., Timofeev, V. A., Tuktamyshev, A. R., Nikiforov, A. I., Murashov, V. V.

“…Admittance spectroscopy is used to study hole states in Si 0.7– y Ge 0.3 Sn y /Si quantum wells in the tin content range y = 0.04–0.1. It is found that the…”
Get full text

Electronic states in Ge ∕ Si quantum dots with type-II band alignment initiated by space-charge spectroscopy by Yakimov, A. I., Dvurechenskii, A. V., Nikiforov, A. I., Bloshkin, A. A., Nenashev, A. V., Volodin, V. A.

Get full text

Electronic states in vertically ordered Ge/Si quantum dots detected by photocurrent spectroscopy by Yakimov, A. I., Kirienko, V. V., Armbrister, V. A., Bloshkin, A. A., Dvurechenskii, A. V.

“…We report on intraband photocurrent spectroscopy of sixfold stacked Ge/Si quantum dots embedded in a Si matrix and aligned along the growth direction. The dots…”
Get full text

Elastically strained GeSiSn layers and GeSiSn islands in multilayered periodical structures by Vyacheslav A. Timofeev, Alexandr I. Nikiforov, Artur R. Tuktamyshev, Aleksey A. Bloshkin, Vladimir I. Mashanov, Sergey A. Teys, Ivan D. Loshkarev, Natalia A. Baidakova

“…This work deals with elastically strained GeSiSn films and GeSiSn islands. The kinetic diagram of GeSiSn growth for different lattice mismatches between GeSiSn…”
Get full text

Surface plasmon dispersion in a mid-infrared Ge/Si quantum dot photodetector coupled with a perforated gold metasurface by Yakimov, A. I., Kirienko, V. V., Armbrister, V. A., Bloshkin, A. A., Dvurechenskii, A. V.

“…The photodetection improvement previously observed in mid-infrared (IR) quantum dot photodetectors (QDIPs) coupled with periodic metal metasurfaces is usually…”
Get full text

Phononless hopping conduction in two-dimensional layers of quantum dots by Yakimov, A. I., Dvurechenskii, A. V., Nikiforov, A. I., Bloshkin, A. A.

Get full text

Interlevel optical transitions in Si/GexSi1−x/Si quantum wells by Bloshkin, A. A.

“…Results of mathematical simulation of the hole spectrum and optical absorption in Si/Ge x Si 1− x /Si quantum wells formed on virtual Ge y Si 1− y substrates…”
Get full text