Персона: Никитенко, Владимир Роленович
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Институт нанотехнологий в электронике, спинтронике и фотонике
Институт ИНТЭЛ занимается научной деятельностью и подготовкой специалистов в области исследования физических принципов, проектирования и разработки технологий создания компонентной базы электроники гражданского и специального назначения, а также построения современных приборов на её основе.
Наша основная цель – это создание и развитие научно-образовательного центра мирового уровня в области наноструктурных материалов и устройств электроники, спинтроники, фотоники, а также создание эффективной инновационной среды в области СВЧ-электронной и радиационно-стойкой компонентной базы, источников ТГц излучения, ионно-кластерных технологий материалов.
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Владимир Роленович
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6 results
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- ПубликацияТолько метаданныеTheoretical analysis of the drift and diffusion of charge carriers in thin layers of organic crystals(2019) Tyutnev, A. P.; Nikerov, D. V.; Korolev, N. A.; Nikitenko, V. R.; Королев, Николай Анатольевич; Никитенко, Владимир Роленович© 2018 Elsevier B.V. The influence of diffusion on the current shape in the time-of-flight (TOF) experiment under conditions of the quasiequilibrium transport has been considered. An analytical expression for the transient current density has been obtained for the case of the reflecting front electrode. The expression has been found to be in a better agreement with the Monte-Carlo numerical modeling than the usual expression based on the standard convection–diffusion equation. We found an estimate of the minimum layer thickness for a flat plateau appearance on TOF current transients.
- ПубликацияТолько метаданныеAnalytic Modeling of the of J- V Characteristics of Quantum Dot-Based Photovoltaic Cells(2019) Tameev, A. R.; Aleksandrov, A. E.; Saunina, A. Yu.; Nikitenko, V. R.; Chistyakov, A. A.; Zvaizgne, M. A.; Саунина, Анна Юрьевна; Никитенко, Владимир Роленович; Чистяков, Александр АлександровичAn analytic model of J-V characteristics of photovoltaic devices based on quantum dot (QD) solids is developed. The model yields the upper estimation of the power conversion efficiency and predicts its extremal dependence on the diffusion length of excitons. The predictive power of our model is approved by the comparison with the experimental data for PbS QD-based solar cells.
- ПубликацияТолько метаданныеMultiple-trapping formalism for the description of charge transport in disordered organic semiconductors with correlated energy disorder(2019) Nikitenko, V. R.; Saunina, A. Yu.; Никитенко, Владимир Роленович; Саунина, Анна Юрьевна© 2019 Published under licence by IOP Publishing Ltd. An applicability of transport level concept, as well as multiple trapping formalism for the description of charge transport in disordered organics with correlated disorder is supported by analytic modeling of temperature and field dependence of mobility. Results of this modeling are in good agreement with well-known results of Monte-Carlo simulations. The reasons for the description of transport by the multiple trapping model and the respective parameters are discussed.
- ПубликацияТолько метаданныеEffect of microscopic Coulomb interactions on concentration dependence mobility of charge carrriers in organic materials(2019) Nikitenko, V. R.; Saunina, A. Yu.; Никитенко, Владимир Роленович; Саунина, Анна Юрьевна© 2019 Published under licence by IOP Publishing Ltd. The filling of deep states is considered usually to be the reason of increase of the mobility of disordered organic materials with increasing concentration. However, at moderate concentrations the effect of microscopic Coulomb interactions (MCI) could be significant, because these interactions can reduce the activation energy of a hop. It is shown, that MCI results in significant additional increase of mobility along with concentration, in addition to the effect of the filling of deep states. The results are in qualitative agreement with existing theoretical and experimental studies.
- ПубликацияТолько метаданныеInfluence of the length of organic molecules of ligands on the PbS QD solids optical properties(2019) Tameev, A. R.; Goltyapin, Y. V.; Zvaigzne, M. A.; Chistyakov, A. A.; Nikitenko, V. R.; Samokhvalov, P. S.; Martynov, I. L.; Чистяков, Александр Александрович; Никитенко, Владимир Роленович; Самохвалов, Павел Сергеевич; Мартынов, Игорь Леонидович© Published under licence by IOP Publishing Ltd. The quantum dot (QD) solids are promising materials for use in electronics. We studied the effect of variations in the length of organic ligands on the optical properties of PbS QD solids from the measurements of photoluminescence spectra and decay kinetics. The decay is becoming exponentially faster along with the decrease of the length of ligand molecules, which is consistent with the decay of excitons by hopping of charge carriers.
- ПубликацияТолько метаданныеJoint Application of Transport Level and Effective Temperature Concepts for an Analytic Description of the Quasi- and Nonequilibrium Charge Transport in Disordered Organics(2019) Tyutnev, A. P.; Ikhsanov, R. S.; Khan, M. D.; Nikitenko, V. R.; Никитенко, Владимир Роленович© 2018 American Chemical Society. An analytic model based on the transport level and effective temperature concepts has been developed to describe consistently both the quasi- and nonequilibrium transport regimes in nonpolar organic solids with the Gaussian uncorrelated energetic disorder. Field and temperature dependences of drift mobility on the nonequilibrium transport regime relating to the time-of-flight experiment are in good agreement with the Monte-Carlo simulation results in a broad range of fields and temperatures using the same set of model parameters for both transport regimes.