Search Results - "Turkulets, Yury"
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Surface states in AlGaN/GaN high electron mobility transistors: Quantitative energetic profiles and dynamics of the surface Fermi level
Published in Applied physics letters (08-07-2019)“…We present a method to obtain quantitative profiles of surface state charge density and monitor its dynamics under various stress conditions in high electron…”
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2
Why do nanowires grow with their c-axis vertically-aligned in the absence of epitaxy?
Published in Scientific reports (16-04-2020)“…Images of uniform and upright nanowires are fascinating, but often, they are quite puzzling, when the substrate is clearly not an epitaxial template. Here, we…”
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3
Contactless Method to Measure 2DEG Charge Density and Band Structure in HEMT Structures
Published in IEEE journal of the Electron Devices Society (01-01-2018)“…We present a contactless method capable of characterizing a high electron mobility transistor (HEMT) heterostructure at the wafer stage, right after its…”
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4
Homologous Self‐Assembled Superlattices: What Causes their Periodic Polarity Switching?
Published in Advanced Physics Research (01-02-2024)“…Quantum semiconductor structures are commonly achieved by bandgap engineering, which relies on the ability to switch from one semiconductor to another during…”
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5
Mobility and Sheet Charge in High-Electron Mobility Transistor Quantum Wells From Photon-Induced Transconductance
Published in IEEE electron device letters (01-03-2019)“…When a high-electron mobility transistor is illuminated, the absorbed photons excite electron-hole pairs. The generated pairs are separated by the built-in…”
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6
Surface properties of semiconductors from post-illumination photovoltage transient
Published in Surfaces and interfaces (01-06-2021)“…Free surfaces of semiconductors respond to light by varying their surface voltage (surface band bending). This surface photovoltage may be easily detected…”
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7
Physics and chemistry of nitrogen dioxide (NO2) adsorption on gallium nitride (GaN) surface and its interaction with the yellow-luminescence-associated surface state
Published in Journal of colloid and interface science (15-01-2025)“…[Display omitted] Surface states have been a longstanding and sometimes underestimated problem in gallium nitride (GaN) based devices. The instability caused…”
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Red Microalgal Sulfated Polysaccharide–Cu2O Complexes: Characterization and Bioactivity
Published in ACS applied materials & interfaces (17-02-2021)“…The anion-exchange capacity of the cell-wall sulfated polysaccharide of the red microalga Porphyridium sp. can be exploited for the complexation of metal ions…”
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Multispectral and Circular Polarization‐Sensitive Carbon Dot‐Polydiacetylene Capacitive Photodetector
Published in Small (Weinheim an der Bergstrasse, Germany) (01-08-2023)“…Multispectral photodetectors (MSPs) and circularly polarized light (CPL) sensors are important in opto‐electronics, photonics, and imaging. A capacitive…”
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Surface states in AlGaN/GaN high electron mobility transistors: Energy profiling using channel photocurrent spectroscopy
Published in 2019 Device Research Conference (DRC) (01-06-2019)Get full text
Conference Proceeding -
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Tungsten‐Disulfide/Polyaniline High Frequency Supercapacitors
Published in Advanced electronic materials (01-06-2021)“…Transition metal dichalcogenides are considered promising constituents in energy storage devices due to their large surface areas, 2D sheet structures, and…”
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Multispectral and Circular Polarization‐Sensitive Carbon Dot‐Polydiacetylene Capacitive Photodetector (Small 31/2023)
Published in Small (Weinheim an der Bergstrasse, Germany) (01-08-2023)“…Multispectral Photodetectors A novel capacitance‐based photodetector is fabricated, combining carbon dots and conjugated polydiacetylene. The new device…”
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13
Red Microalgal Sulfated Polysaccharide-Cu 2 O Complexes: Characterization and Bioactivity
Published in ACS applied materials & interfaces (17-02-2021)“…The anion-exchange capacity of the cell-wall sulfated polysaccharide of the red microalga sp. can be exploited for the complexation of metal ions (e.g., Cu,…”
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14
Digenite (Cu9S5): Layered p‑Type Semiconductor Grown by Reactive Annealing of Copper
Published in Chemistry of materials (10-04-2018)“…Most of the recently discovered layered materials such as MoS2 or MoSe2 are n-type, while few materials, such as phosphorene, which suffers from rapid…”
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The GaN(0001) yellow-luminescence-related surface state and its interaction with air
Published in Surfaces and interfaces (01-06-2023)“…Yellow luminescence (YL) is probably the longest and most studied defect-related luminescence band in GaN, yet its electronic structure or chemical identity…”
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Size-Selective Detection of Nanoparticles in Solution and Air by Imprinting
Published in ACS sensors (28-01-2022)“…Monitoring of nanoparticles (NPs) in air and aquatic environments is an unmet challenge accentuated by the rising exposure to anthropogenic or engineered NPs…”
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CMOS-compatible method for doping of buried vertical polysilicon structures by solid phase diffusion
Published in Applied physics letters (28-03-2016)“…Polysilicon receives attention nowadays as a means to incorporate 3D-structured photonic devices into silicon processes. However, doping of buried layers of a…”
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18
Spontaneous Polarization and Surface Charge Distribution of ZnO from Surface Photovoltage Spectroscopy
Published in 2021 Conference on Lasers and Electro-Optics (CLEO) (01-05-2021)“…Surface charge distribution and spontaneous polarization charge are obtained experimentally using a proposed method based on surface photovoltage spectroscopy…”
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Conference Proceeding -
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Is the Mg-related GaN blue luminescence deep-level an MgO surface state?
Published 29-09-2023“…Mg is currently the only p-type dopant in technological use in GaN. Its incorporation into the GaN lattice is difficult. It requires a thermal treatment that…”
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20
Surface properties of semiconductors from post-illumination photovoltage transient
Published 04-06-2020“…Free surfaces of semiconductors respond to light by varying their surface voltage (surface band bending). This surface photovoltage may be easily detected…”
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Journal Article