Recent Submissions

  • Charge carrier mobility in non-equilibrated transport in molecular materials 

    Kania, Sylwester; Kościelniak-Mucha, Barbara; Kuliński, Janusz; Słoma, Piotr; Wojciechowski, Krzysztof (Lodz University of Technology PressWydawnictwo Politechniki Łódzkiej, 2019)
    Non-equilibrated transport of charge carriers in the molecular material depends on the structure and packing of the molecules. Explanation of the measurements of the photocurrent generated with ...
  • Polarization of organic aromatic molecule in anionic and cationic state 

    Kania, Sylwester; Kościelniak-Mucha, Barbara; Kuliński, Janusz; Słoma, Piotr; Wojciechowski, Krzysztof (Lodz University of Technology PressWydawnictwo Politechniki Łódzkiej, 2019)
    The modification of electron states and the change in the geometry of the structure of molecule during hopping transport of charge carriers depends on the symmetry of the molecule. During electric transport the ...
  • Electrical and thermal properties of anthraquinone layers 

    Kania, Sylwester; Kuliński, Janusz; Sikorski, Dominik (Lodz University of Technology PressWydawnictwo Politechniki Łódzkiej, 2019)
    Quantum-chemical calculations indicate that the bond lengths in the anthraquinone anthracene backbone are shorter than the corresponding bonds in unsubstituted anthracene. The shape of the frontier molecular ...
  • Influence of chirality on two-dimensional deformations of twisted flexoelectric nematic layers 

    Buczkowska, Mariola (Lodz University of Technology PressWydawnictwo Politechniki Łódzkiej, 2019)
    Two-dimensional deformations induced by electric field in twisted nematic cells filled with liquid crystal possessing flexoelectric properties were simulated numerically. The influence of chiral dopants on ...
  • Frequency dependence of the Kerr constant in nynas nytro 3000 oil determined by the polarimetric method 

    Poborska, Julita; Dąbrówka, Dominika; Chwirot, Maksymilian; Ledzion, Rafał; Izdebski, Marek; Kucharczyk, Włodzimierz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2018)
    Frequency dependence of the Kerr constant in nynas nytro 3000 oil determined by the polarimetric method A frequency dependence of the Kerr constant K in transformer oil Nynas Nytro 3000 within a frequency range 117-5017 ...
  • The origin of the interaction responsible for the difference of hole mobility of thwo derivatives of anthracene 

    Kania, Sylwester; Kuliński, Janusz; Sikorski, Dominik (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2018)
    Hole mobility of the layers built from two anthracene derivatives differing in the substitution of the central benzene ring, i.e. anthrone substituted with only one keto group and anthraquinone substituted with two keto ...
  • Ab initio investigation of ethanol-tetracene interactions during adsorption 

    Kania, Sylwester; Kościelniak-Mucha, Barbara; Słoma, Piotr; Wojciechowski, Krzysztof (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2018)
    Ab initio calculations presented in this work are performed to investigate the geometry, interaction energy and bonding properties of binary complexes formed between neutral ethanol and tetracene molecules. Two different ...
  • Flexoelectric torque in uniformly lying helix structures of chiral nematic liquid crystal 

    Buczkowska, Mariola (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2018)
    Electric field induced deformations of chiral nematic liquid crystal layers were studied numerically. Uniformly lying helix structure of short pitch flexoelectric mixtures was considered. The electro-optic effect due ...
  • Verification of one-dimensional models describing anisotropy of step growth 

    Izdebski, Marek; Ledzion, Rafał (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2017)
    Models that allow to obtain directional dependencies of normal velocity of a straight step on the (001) face of Kossel crystal and its edge free energy are reviewed. The dependencies were considered in a wide range of ...
  • Subwavelength high contrast gratings as optical sensing elements 

    Marciniak, Magdalena; Gębski, Marcin; Dems, Maciej; Czyszanowski, Tomasz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2017)
    Subwavelength high contrast gratings (HCG) can be used as high reflective mirrors and can be used as mirrors of vertical-cavity surface-emitting lasers. HCG mirrors can be designed in such a way that they are extremely ...
  • Sensitivity of tetracene layer as an effect of entanglement 

    Kania, Sylwester; Kościelniak-Mucha, Barbara; Kuliński, Janusz; Słoma, Piotr; Wojciechowski, Krzysztof (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2017)
    Application of the method of quantum-mechanical calculations allowed for studies of variability of interactions between molecules of ethanol and tetracene. Entanglement of quantum states is seen during calculations in ...
  • Influence of tilted surface alignment on flexoelectric domains in twisted nematic layers 

    Buczkowska, Mariola; Derfel, Grzegorz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2017)
    The small deformations induced by electric field in twisted flexoelectric nematic layers were simulated numerically. The onedimensional (i.e. homogeneous over the whole area of the layer) and two-dimensional (i.e. ...
  • The effect of the dipole moment on hole conductivity of polycrystalline films of two anthracene derivatives 

    Kania, Sylwester; Kościelniak-Mucha, Barbara; Kuliński, Janusz; Słoma, Piotr; Wojciechowski, Krzysztof (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2017)
    Hole mobility in the polycrystalline layers of anthrone and anthraquinone differs in one order of magnitude in spite of nearly the same crystalline structure. The origin of this difference was determined with use of the ...
  • Current dependence of resistances and capacitances in a vertical-cavity surface-emitting laser 

    Komar, Paulina; Śpiewak, Patrycja; Gębski, Marcin; Lott, James A.; Wasiak, Michał (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2017)
    Based on the model of impedance and modulation time constants for vertical-cavity surface-emitting lasers (VCSELs) we study the resistances and capacitances of an equivalent circuit as a function of the current flowing ...
  • Comparative study of the influence of the reorganization energy on the hole transport of two four-cyclic arenes 

    Kania, Sylwester; Kuliński, Janusz; Sikorski, Dominik (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2017)
    Application of the method of quantum-mechanical calculations allowed the determination of the reorganization energy of the molecules of tetracene and p-quaterphenyl and the estimation of the transfer rate integral between ...
  • Comparison of methods for simulation of the optical properties of VCSELs 

    Więckowska, Marta; Dems, Maciej; Czyszanowski, Tomasz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2017)
    This paper presents the differences arising from the use of scalar (Effective Frequency Method) and vector (Fourier’s and Bessel’s Admittance Methods) calculation methods in optical analysis of arsenide Vertical-Cavity ...
  • Elimination of the impact of rc constant on transient photocurrents measured in organic layers. 

    Kania, Sylwester; Kuliński, Janusz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2016)
    We present a calculation method for elimination of the effect of the RC constant of the measuring circuit in the time-of-flight (TOF) measurements where a pulse generation of the photocurrent in a thin layer of low-molecular ...
  • The effect of symmetry of a molecule electronic density on the dipole moment of unit cell and hole conductivity of thin polycrystalline films of anthrone and anthraquinone. 

    Kania, Sylwester; Kościelniak-Mucha, Barbara; Kuliński, Janusz; Słoma, Piotr; Wojciechowski, Krzysztof (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2016)
    The electronic structure of anthrone and anthraquinone molecules in the gas state and in the simulated crystal unit cell were calculated with time dependent-density functional theory (TD-DFT) method. The values of dipole ...
  • Study of electrically induced orientational ordering in mineral oils on the example of orlen oil trafo en. 

    Izdebski, Marek; Adamus, Monika; Jóźwiak, Ewelina; Ledzion, Rafał (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2016)
    A simple model of orientational ordering of molecules in the liquid under the influence of an applied sinusoidal electric field of low frequency is presented. The predicted theoretical dependencies of linear birefringence ...
  • Two-dimensional deformations in twisted flexoelectric nematic cells. 

    Derfel, Grzegorz; Buczkowska, Mariola (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2016)
    Electric field induced deformations occurring in twisted nematic cells filled with liquid crystalline material possessing flexoelectric properties were simulated numerically. The aim of computations was to compare the ...

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