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  1. No Access

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    Sol–Gel Derived Photonic Crystals BaTiO3/SiO2

    It is shown for the first time that multilayer periodic BaTiO3/SiO2 structures formed by the sol–gel method are tunable photonic crystals with dependence of the photonic band gap from the temperature of the sampl...

    N. V. Gaponenko, P. A. Kholov, Yu. D. Karnilava, E. I. Lashkovskaya… in Semiconductors (2021)

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    Photovoltaic Properties of Thin Films Based on a Composite of PbS Quantum Dots and a Fullerene Derivative: A Complex Ester of Butyric Acid

    A study is made of the effect a surface ligand’s molecules have on the photoconductivity and photovoltaic effect in thin solid layers of structures based on PbS quantum dots. Thin solid layers are prepared of ...

    A. E. Aleksandrov, M. A. Zvaigzne… in Bulletin of the Russian Academy of Science… (2020)

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    Quantum Dots Improve Photovoltaic Properties of Purple Membranes under Near-Infrared Excitation

    Purple membrane (PMs), in which the photosensitive protein bacteriorhodopsin (bR) naturally occurs, have photovoltaic properties and are promising for optoelectronic applications. However, PMs cannot effective...

    V. A. Krivenkov, P. S. Samokhvalov, A. A. Chistyakov, I. Nabiev in Optics and Spectroscopy (2018)

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    Study and Development of Photovoltaic Structures Based on Quantum Dot Solids of PbS with Various Ligands

    The photoconductivity of condensates of lead-sulfide quantum dots (QDs)—QD solids—with various organic ligands is studied. It is demonstrated that the QD solid photoconductivity increases exponentially with a ...

    M. A. Zvaigzne, A. E. Aleksandrov, Ya. V. Gol’tyapin… in Technical Physics Letters (2018)

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    Optimization of Excitation and Detection Modes to Detect Ultra-Small Amounts of Semiconductor Quantum Dots Based on Cadmium Selenide

    At present, fluorescent spectroscopy is a powerful tool that is used in many biology applications. In practice, fluorescent labels based on organic dyes and semiconductor quantum dots are used. It is noteworth...

    Y. A. Kuzishchin, I. L. Martynov, E. V. Osipov… in Optics and Spectroscopy (2018)

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    The Embedment of Conjugated MDMO−PPV Polymer in Microcavities of Porous Silicon at Excess Pressure from Solution

    The results of a controlled embedment of the polymer Poly[2-methoxy-5-(3',7'-dimethyloctyloxy)- 1,4-phenylene vinylene] (MDMO−PPV) in microcavities that are based on porous silicon from a solution in toluene a...

    E. V. Osipov, I. L. Martynov, M. N. Kur’yanova… in Technical Physics Letters (2018)

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    Article

    The Influence of the Annealing Regime on the Properties of Terahertz Antennas Based on Low-Temperature-Grown Gallium Arsenide

    Low-temperature gallium arsenide (LT-GaAs) films were grown by the method of molecularbeam epitaxy (MBE) at a reduced temperature (230°C) on GaAs(100) substrates and subjected to postgrowth annealing in variou...

    S. A. Nomoev, I. S. Vasil’evskii, A. N. Vinichenko… in Technical Physics Letters (2018)

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    Article

    Influence of the surface ligand molecules length on the optical properties and photoconductivity of PbS quantum dot condensates

    The influence of ligands—organic molecules on the quantum dot (QD) surface—on the optical properties of thin-layer condensates of lead sulfide QDs and the photoconductivity of diode structures based on them ha...

    M. A. Zvaigzne, A. E. Aleksandrov, P. S. Samokhvalov… in Technical Physics Letters (2017)

  9. Article

    Erratum to: “A highly efficient white-light-emitting diode based on a two-component polyfluorene/quantum dot composite”

    S. V. Dayneko, P. S. Samokhvalov, D. Lypenko, G. I. Nosova… in Optics and Spectroscopy (2017)

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    Article

    A highly efficient white-light-emitting diode based on a two-component polyfluorene/quantum dot composite

    Organic light-emitting diodes (OLEDs) are attracting great interest of the scientific community and industry because they can be grown on flexible substrates using relatively simple and inexpensive technologie...

    S. V. Dayneko, P. S. Samokhvalov, D. Lypenko, G. I. Nosova… in Optics and Spectroscopy (2017)

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    Article

    Modeling of the optical properties of porous silicon photonic crystals in the visible spectral range

    Optical devices based on photonic crystals are of great interest because they can be efficiently used in laser physics and biosensing. Photonic crystals allow one to control the propagation of electromagnetic ...

    D. S. Dovzhenko, I. L. Martynov, I. S. Kryukova… in Optics and Spectroscopy (2017)

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    Article

    The effect of plasmon silver and exiton semiconductor nanoparticles on the bacteriorhodopsin photocycle in Halobacterium salinarum membranes

    The interaction of semiconductor quantum dots and silver nanoparticles (AgNPs) with bacteriorhodopsin (BR), a membrane protein contained in the purple membrane (PM) of Halobacterium salinarum, is studied. It is s...

    V. A. Oleinikov, E. P. Lukashev, S. Yu. Zaitsev… in Optics and Spectroscopy (2017)

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    Article

    Resonant transfer of one- and two-photon excitations in quantum dot–bacteriorhodopsin complexes

    Light-sensitive protein bacteriorhodopsin (BR), which is capable of electrical response upon exposure to light, is a promising material for photovoltaics and optoelectronics. However, the rather narrow absorpt...

    V. A. Krivenkov, P. S. Samokhvalov, R. S. Bilan… in Optics and Spectroscopy (2017)

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    Article

    Silicon photonic structures with embedded polymers for novel sensing methods

    At present time research and development of a new generation of optical sensors using conjugated polymers, in particular sensors of explosives are actively underway. Nevertheless, the problems of the sensitivi...

    E. V. Osipov, I. L. Martynov, D. S. Dovzhenko, P. S. Ananev… in Optics and Spectroscopy (2017)

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    Article

    The effect of silver nanoparticles on the photocycle of bacteriorhodopsin of purple membranes of Halobacterium salinarum

    The effect of silver nanoparticles (AgNPs) that are adsorbed on the surface of the purple membranes of Halobacterium salinarium bacteria on the optical properties and functional peculiarities of the lightsensitiv...

    V. A. Oleinikov, K. E. Mochalov, D. O. Solovyeva… in Optics and Spectroscopy (2016)

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    Article

    Early proterozoic pillow lavas of Suisari as habitats of the earliest microorganisms

    Assemblages of fossilized microorganisms from the Paleoproterozoic Suisarian Formation (Ludicovian stratotype of the Karelian Complex) of central Karelia are recognized and investigated. Fossil assemblages of ...

    M. M. Astafieva, A. A. Chistyakov, M. M. Bogina, E. V. Sharkov in Paleontological Journal (2013)

  17. No Access

    Article

    A laser desorption ion-mobility increment spectrometer for detection of ultralow concentrations of nitro compounds

    A compact instrument that implements for the first time a method for analyzing substances, in which laser desorption of analyzed molecules and laser ionization of an air sample are combined with the ionmobilit...

    A. E. Akmalov, A. S. Bogdanov, G. E. Kotkovskii… in Instruments and Experimental Techniques (2013)

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    Article

    Sorption of aluminate from alkaline solutions on D-403 anion exchanger

    The sorption of aluminate from alkaline solutions on D-403 anion exchanger is studied. The sorption isotherm is described by the Langmuir and Freindlich classical equations and the Redlich-Peterson generalized...

    A. A. Chistyakov, D. E. Chirkst… in Russian Journal of Physical Chemistry A (2011)

  19. No Access

    Article

    Sorption thermodynamics of cobalt(II) cations on iron-manganese concretions

    Isotherm of ion exchange of Co2+ and Na+ cations on iron-manganese concretions is thermodynamically described using a modified Langmuir equation. The thermodynamic characteristics of the ion exchange are determin...

    D. E. Chirkst, O. V. Cheremisina, M. V. Ivanov… in Russian Journal of Applied Chemistry (2011)

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    Article

    A laser spectrometer of field-asymmetric ion mobility

    A method for analyzing a substance has been experimentally tested. The method combines the field-asymmetric ion mobility spectrometry and laser ionization of molecules under atmospheric pressure. Pulsed radiat...

    G. E. Kotkovskii, A. V. Sychev, A. V. Tugaenko… in Instruments and Experimental Techniques (2011)

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