?
On efficiency limit of ZnO/CH3NH3PbI3/CuI perovskite solar cells
Physical Chemistry Chemical Physics. 2017. Vol. 19. No. 30. P. 19916-19921.
Organometal triiodide perovskites are promising, high-performance absorbers in solar cells. Considering the perovskite as a thin film absorber, we solve transport equations and analyse the efficiency of a simple heterojunction configuration as a function of electron–hole diffusion lengths. We found that for a thin film thickness of ~1 micron the maximum efficiency of ~31% could be achieved at the diffusion length of ~100 micron.
Novikov S. V., / Cornell University. Series cond-mat "arxiv.org". 2022. No. 2209.14955.
Charge transport in amorphous semiconductors having spatially correlated exponential density of states (DOS) has been considered for the arbitrary behavior of the correlation function of random energies. Average carrier velocity is exactly calculated for the quasi-equilibrium (nondispersive) transport regime. For the symmetric exponential DOS with exponential tails for low and high energies and non-positive correlation ...
Added: November 1, 2022
Якобсон О., Грибкова О., Tameev A. et al., Письма в Журнал технической физики 2019 Т. 45 № 16 С. 3-5
Perovskite solar cells with photoactive layer of methylammonium lead iodide and hole transport layer based on a polyaniline complex with poly(2-acrylamido-2-methyl-1-propanesulfonic acid) have been developed for the first time. The power conversion efficiency of obtained cells is comparable with that of known analogs. Results of simulation of the optical parameters of cells in the framework ...
Added: November 28, 2019
Fishchuk I. I., Kadasnchuk A., Novikov S. V. et al., Molecular Crystals and Liquid Crystals 2014 Vol. 589 P. 18-28
We report on the influence of the lateral electric field on the charge mobility in organic field-effect transistors (OFET) based on C 60 films with multigrain morphology. The experimental data were quantitatively described using a recent analytical model by accounting for the strong local electric fields in a multigrain transistor channel and for the energy ...
Added: March 4, 2015
A.P. Tyutnev, B.L. Linetskiy, A.V. Nikerov et al., Russian Journal of Physical Chemistry B 2015 Vol. 9 No. 4 P. 648-657
Abstract—A theoretical analysis of the nonlinear field dependence of the pulsed radiationinduced conductiv ity of polystyrene in strong electric fields is performed. An explanation of the previously uncomprehended phe nomenon of the sharp increase in the radiationinduced electrical conductivity in the presence of an electric field with a strength of above 5 × 107 V/m ...
Added: January 18, 2016
Омельченко О. Д., Грибкова О. Л., Тамеев А. Р. et al., Физикохимия поверхности и защита материалов 2014 Т. 50 № 5 С. 512-518
Two techniques of manufacturing a nanocomposite based on a complex of polyaniline with polymer acid and graphene are proposed. The electric conductivity of thin nanocomposite layers is higher than that of a polymer complex of polyaniline and strongly depends on the degree of oxidation of graphene. An explanation of the effect is suggested that takes ...
Added: February 28, 2015
Chistyakov A., Zvaigzne M., Nikitenko V. et al., The Journal of Physical Chemistry Letters 2017 Vol. 8 No. 17 P. 4129-4139
Quantum dot (QD) solids represent a new type of condensed matter drawing high fundamental and applied interest. Quantum confinement in individual QDs, combined with macroscopic scale whole materials, leads to novel exciton and charge transfer features that are particularly relevant to optoelectronic applications. This Perspective discusses the structure of semiconductor QD solids, optical and spectral ...
Added: October 7, 2017
Sadovnichii D. N., A.P. Tyutnev, Milekhin Y. M., Russian Chemical Bulletin 2020 No. 9 P. 1607-1613
The modern state of experimental and theoretical studies of the radiation-induced conductivity and charging of polymeric dielectrics under the action of electron beams is considered. The eff ect of the molecular mobility on the transport of excess charge carriers is discussed. ...
Added: December 19, 2020
49601782, Ikhsanov R., 49601816 et al., Journal of Applied Physics 2020 Vol. 128 No. 225501 P. 1-8
Numerical calculations have been performed on the time of flight transients predicted by a newly developed model describing consistently the radiation-induced conductivity of common insulating polymers under both pulsed and continuous irradiation. The model differs substantially from the conventional multiple trapping formalism based on an exponential trap distribution by the presence of additional deep traps distributed in energy ...
Added: December 5, 2020
Mintairov S., Maximov M., Nadtochiy A. et al., Applied Physics Express 2020 Vol. 13 No. 1 Article 015009
Studies of electronic transitions in the photoconverters with In0.4Ga0.6As quantum well-dots (QWD) layers have been carried out. It is shown that the quantum yield and electroluminescence spectral peaks are well described by e1-lh1 and e1-hh1 optical transitions in the quantum well with the same average composition and thickness. The energy of the optical transitions shifts toward longer ...
Added: November 5, 2020
Aksenov S. A., Bober S. A., Nikolaeva Y. A. et al., / ЦНИИмаш. 2015.
В работе предлагается методика расчета ограниченных орбит вокруг точки либрации L2 системы Солнце-Земля. Движение космического аппарата (КА) в окрестности точки либрации рассматривается как суперпозиция трех компонент: убывающей (устойчивой), возрастающей (неустойчивой) и ограниченной. Предлагаемая методика позволяет скорректировать вектор состояния КА, таким образом, чтобы нейтрализовать неустойчивую компоненту движения. На основе численных расчетов, выполненных с помощью данной методики, произведено ...
Added: October 12, 2015
Bograchev D., Volfkovich Y., Dubasova V. et al., Электрохимия 2013 Т. 49 № 2 С. 115-123
A model of the lithium ion battery is developed which takes into account
intercalation and extraction of lithium ions in the active mass of negative and positive
electrodes, the dependences of equilibrium electrode potentials on the concentration of
intercalated lithium, the ion transfer in pores of electrodes and the separator, the kinetics of
electrode reactions, and the electric double ...
Added: March 16, 2015
Novikov L., Voronina E. N., Chirskaya N. P., Inorganic Materials: Applied Research 2014 Vol. 4 No. 2 P. 107-115
Features of formation and migration of radiation-induced defects in carbon nanotubes (CNT) and nanostructured materials are examined. The main methods and software tools used for the simulating nanomaterial structure and space factors are described. The results of mathematical simulation are presented. ...
Added: March 2, 2015
А.П. Тютнев, Б.Л. Линецкий, А.В. Никеров et al., Химическая физика 2015 Т. 34 № 7 С. 58-61
A theoretical analysis of the peculiarities of the nonlinear field dependence of radiation-pulse conductivity of polystyrene in strong electric fields. The explanation of previously misunderstood the rapid increase of the radiation conductivity in electric fields, the intensity of which exceeds 5E7 V/m. this behavior cannot be explained on the basis of the Onsager theory for ...
Added: May 25, 2015
Konstantinov Y., Горланов Е. С., Pozhidaev E. et al., Системный администратор 2018 № 9 С. 84-89
Computer simulation for the impact of electrostatic discharges (ESD) on the power IRF series MOS transistors have been carried out. The influence of the printed circuit board (PCB) capacitance values on the transistor gate-source voltage is investigated. This influence is significant for transistors with low gate – source capacitance was found.
The relation between the ESD ...
Added: October 10, 2018
49601782, Novikov S. V., Journal of Chemical Physics 2013 Vol. 138 No. 104120 P. 1-9
We present the results of Monte Carlo simulations of the charge carrier transport in a disordered molecular system containing spatial and energetic disorders using the dipolar glass model. Model parameters of the material were chosen to fit a typical polar organic photoconductor polycarbonate doped with 30% of aromatic hydrazone, whose transport properties are well documented ...
Added: April 3, 2013
Volfkovich Y., Bograchev D., Mikhalin A. A. et al., Journal of Solid State Electrochemistry 2014 Vol. 18 No. 5 P. 1351-1363
Electrochemical behavior of electrodes on the basis of CH900-20 activated carbon (AC) cloth has been studied in concentrated sulfuric acid solution. Cyclic voltammetric curves have been studied in the reversibility range (from 0.1 to 0.9 V RHE) and in the deep cathodic charging potential range (from –0.8 to 1 V RHE). It has been shown that electric ...
Added: March 16, 2015
A. P. Tyutnev, A. V. Nikerov, V. S. Saenko, et al., Polymer Science - Series A 2015 Vol. 57 No. 1 P. 94-100
Abstract—The multipletrapping model with a Gaussian trap distribution was used for the numerical analysis of the effects of nonequilibrium transport on the temperature dependence and field dependence of the mobility of carriers in a typical molecularly doped polymer. It was shown that, with allowance for the prescribed Poole–Frenkel Frenkel type field dependence of mobility under ...
Added: May 24, 2015
49601782, Ikhsanov R., Novikov S. V., Chemical Physics 2014 Vol. 440 P. 1-7
We have compared time-of-flight curves predicted by hopping and multiple trapping models with the Gaussian and exponential site/trap energy distributions, fitting Monte-Carlo predictions of the former with numerical calculations of the latter in a wide time domain using logarithmic coordinates lg j–lg t for the characterization of current shapes and an estimation of transit times. As a ...
Added: February 28, 2015
V. E. Anikeeva, Semenova O. I., Tereshchenko O. E., Journal of Physics: Conference Series 2018 Vol. 1124 No. 4 P. 041008
For the past five years methyl-ammonium lead trihalide perovskite solar cells have shown remarkable progress in power conversion efficiencies due to their unique properties. Single CH3NH3PbI3 crystals were grown on the base of concentrated aqueous solution condensation of the precursor. The grown crystal structure and stoichiometry were studied by RHEED, X-ray and XPS. The perovskite crystal ...
Added: October 23, 2020
М. : Российский университет дружбы народов, 2012
Приводятся основные доклады V Международной научно-практической конференции "Инженерные системы - 2012", проходившей с 16 по 18 апреля 2012 г. в Москве. Конференция была организована Российским университетом дружбы народов.
Материалы для публикации отобраны Оргкомитетом конференции в соответвтвии с рекомендациями независимых рецензентов и расположены по секциям. Доклады сгруппированы по секциям и публикуются с сохранением стиля и оформления авторов.
Труды ...
Added: March 20, 2013
Visco S., Nimon V. Y., Petrov A. et al., Journal of Solid State Electrochemistry 2014 Vol. 18 No. 5 P. 1443-1456
Abstract The extremely high theoretical energy density of the lithium-oxygen couple makes it very attractive for next-generation battery development. However, there are a number of challenging technical hurdles that must be addressed for Li-Air batteries to become a commercial reality. In this article, we demonstrate how the invention of water-stable, solid electrolyte-protected lithium electrodes solves ...
Added: March 16, 2015
М. : ОАО «Концерн «Моринформистема–Агат», 2014
Системные проблемы надёжности, качества, компьютерного моделирования, информационных и электронных технологий в инновационных проектах. ...
Added: October 16, 2014
Kubina T., Aksenov S. A., Hutnické listy 2011 No. 4 P. 88-91
The results concern roll pass design for rolling a round bar of a 20mm diameter from a 55mm diameter input. Concerning materials, this roll pass design must cover a wide range of steels, from low-carbon micro-alloyed steels to stainless steels. The roll pass design proposal takes into consideration lower plasticity of certain steels. The comparison ...
Added: April 12, 2012
A.P. Tyutnev, V.S. Saenko, Aleshkevich A. et al., Polymer Science - Series A 2017 Vol. 59 No. 4 P. 575-578
Abstract—Transient current curves in a polar molecularly doped polymer for subsurface and bulk generations of charge carriers are compared. No transformation of the horizontal plateau on the former to the curve predicted by the diffusion and drift theory was found, contrary to expectations for quasi-equilibrium transport conditions. This behavior indicates a nonequilibrium character of the ...
Added: June 15, 2017