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Article
Research and Optimization of Crystallization Processes of Solutions of Hybrid Halide Perovskites of the CH3NH3PbI3 Composition
A single-stage centrifugation method is used for the precipitation and crystallization of a solution of a hybrid halide perovskite compound of the CH3NH3PbI3 composition. The perovskite films are annealed in the ...
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Article
Sensitization of ZnO Nanorods by AgInS2 Colloidal Quantum Dots for Adsorption Gas Sensors with Light Activation
a low-temperature technique for the formation of coatings based on ZnO nanorods decorated with colloidal AgInS2 quantum dots is presented. It is shown that ZnO nanocrystals and colloidal AgInS2 quantum dots with ...
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Article
Electrical Behavior of a Two-Terminal Organic–Inorganic Halide Perovskite Rewritable Memristor for Neuromorphic Operations
Two-terminal rewritable memristors based on organic-inorganic halide perovskites CH3NH3PbBr3:GO and CH3NH3PbI3:GO were manufactured for neuromorphic operations and their electrical characteristics were investigat...
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Article
Open AccessGeneration of Terahertz Radiation under the Femtosecond Laser Excitation of a Multilayer Structure Based on a-Si:H/a-SiC:H/c-Si
Coherent terahertz radiation has been generated in p–n heterostructures based on a-Si:H/a-SiC:H/c-Si excited by 800-nm femtosecond laser pulses at room temperature. Terahertz radiation is generated when a reverse...
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Article
Features of the Formation of Conductive Channels in Memristors Based on Solid Electrolytes
Experimental data on measurement of the resistance and electrical conductivity in the low-resistance mode of operation of a germanium-selenide-based memristor with a self-forming conductive channel in the form...
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Article
Polymer and Perovskite Composite Memristor Materials and Devices for Neuromorphic Applications
Synaptic materials and devices that mimic biological synapses are essential components for neuromorphic computational operations. Polymer, perovskite, and composite (organic–inorganic) optoelectronic synaptic ...
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Article
Low-frequency noise and impedance spectroscopy of device structures based on perovskite-graphene oxide composite films
We present the results of studies of low-frequency noise and impedance spectroscopy (IS) in operating planar structures based on films of organic-inorganic halide perovskite CH3NH3PbBr3 with and without embedded ...
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Article
Temperature-Frequency Study of Germanium Selenide Memristors with a Self-Directed Current-Conducting Channel
The experimental data on the measurement of resistance and electrical conductivity in a low-resistance mode of operation of a memristor based on germanium selenide with a self-directed conductive channel in th...
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Article
Terahertz Characteristics of Composite Films Based on Organometallic Perovskite and Graphene Oxide
Composite films based on CH3NH3PbI3 organometallic perovskite and particles of graphene oxide with a content of ~0, 2, 6, and 15 wt % were studied by terahertz spectroscopy in the time domain in the spectral rang...
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Article
A Study of the Electrophysical Properties of Composite Fibers Based on Chitosan and Polypyrrole for Tissue Engineering
Composite fibers based on chitosan coated with a conductive polymer polypyrrole (PPy) have been obtained. Their morphology was studied by scanning electron microscopy. The electrical conductivity of the fibers...
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Article
Anisotropy of a Terahertz Electromagnetic Response of Filament Microstructures of a Composite Based on Polypropylene with Carbon Nanofibers
Linear dichroism and birefringence are detected in composite microfilaments consisting of polypropylene with carbon nanofibers in the terahertz spectral range. The magnitude of linear dichroism is a nonmonoton...
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Article
Numerical Simulation of the Current–Voltage Characteristic of a Bipolar Hafnium-Oxide Memristor
In this paper, we develop a finite element model that allows calculating the current-voltage characteristic of a bipolar memristor based on Pt/HfO2/TiN hafnium oxide, which reflects both the high- and low-resista...
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Article
Composite Films Based on Carbon Quantum Dots in a Matrix of PEDOT:PSS Conductive Polymer
Carbon quantum dots (CQDs), as well as their composites with the PEDOT:PSS conductive polymer, are hydrothermally synthesized from glucose, and their electrical properties are investigated in the temperature r...
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Article
Photoluminescence and Photoconductivity of Lead Halide Perovskite Films Modified with Mixed Cellulose Esters
We have investigated the photoluminescence (PL) and photoconductivity of lead halide perovskite (CH3NH3PbBr3) films modified with different mixed cellulose esters (CEs). It was shown that the absorbance and PL sp...
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Article
Resistive Switching and Memory Effects in Composite Films Based on Graphene Oxide in a Matrix of Organometallic Perovskites
The resistive switching effect is studied in composite films based on organometallic perovskites CH3NH3PbBr3 and CH3NH3PbI3 with graphene oxide (GO) particles with concentration 1–3 wt % and a layer of [60]PCBM f...
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Article
Photoelectric Properties of Composite Films Based on Organometallic Perovskite CH3NH3PbBr3 Modified with Mixed Cellulose Ester
It is shown that the introduction of cellulose ester mixed with acetotrimethyl acetate into films of organometallic perovskite CH3NH3PbBr3 significantly increases their stability while maintaining the optical and...
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Article
Electroluminescence Mechanism in Light Emitting Field Effect Transistors Based on Perovskite Nanocrystal Films in a Semiconductor Polymer Matrix
The mechanisms of radiative recombination and electroluminescence in the structures based on the films of perovskite nanocrystals CsPbBr3 in the matrix of a semiconductor polymer MEH-PPV have been considered. It ...
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Article
Terahertz Absorption in Composite Films Based on Organometallic Perovskite and Mixed Cellulose Ester
Composite films based on CH3NH3PbI3 organometallic perovskite and mixed cellulose ester (CE) were studied using terahertz (THz) spectroscopy in the time domain. It is established that the introduction of CE into ...
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Article
The Energy State of Epitaxial Layers in a Multilayer Heterostructure, Grown on a (001)GaAs Substrate
It is shown based on the structural analysis by reciprocal space map** and the experimental secondary ion mass spectrometry and transmission electron microscopy data that, along with lateral compressive stre...
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Article
Specific Features of Current–Voltage Characteristics of Field-Effect Transistors with Active Layers Based on Composite Films of Semiconductor Polymers with Nanoparticles of Inorganic Perovskites
Current–voltage characteristics of composite field-effect transistors with active layers based on inorganic perovskites, nanocrystals of cesium halides CsPbBr3, embedded into the matrix of a semiconductor polymer...
