2020, vol. 41

Stały URI dla kolekcjihttp://hdl.handle.net/11652/3605

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Autorsearch.filters.applied.operator.equals: search.filters.author.Kuliński, JanuszTematsearch.filters.applied.operator.equals: search.filters.subject.obliczenia DFT

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  • Pozycja
    Electrical and thermal properties of anthrone
    (Wydawnictwo Politechniki Łódzkiej, 2020) Kania, Sylwester; Kuliński, Janusz; Sikorski, Dominik
    Quantum-chemical density functional theorem (DFT) calculations indicate that the value of the reorganization energy indicates the possibility of efficient hole capture by the anthrone molecule during transport process of charge carriers. Differential scanning calorimetry (DSC) studies indicate the temperature stability of anthrone molecules above the melting point up to 164°C. The glass transition is determined at 153.7 °C and melting point at 157.05 °C.
  • Pozycja
    A DFT study of reorganization energy of some chosen carbazole derivatives
    (Wydawnictwo Politechniki Łódzkiej, 2020) Kania, Sylwester; Kościelniak-Mucha, Barbara; Kuliński, Janusz; Słoma, Piotr; Wojciechowski, Krzysztof
    Strong efforts toward finding an organic semiconductor with a molecule characterized by a low charge transfer energy applying quantum-chemical calculations are undertaken. Density Functional Theory (DFT) calculations made for carbazole (Cz) and three isomers of benzocarbazole, benzo (a) carbazole (BaCz), benzo (b) carbazole (BbCz) and benzo (c) carbazole (BcCz) proves the possibility of lacking the growth of reorganization energy despite the molecule dimentions enlargement. Benzo(b)carbazole molecules with high longitudinal dimension of the rigid skeleton d = 9,05 Å posses the low value of reorganization energy for both hole and electron transport of 0,18 eV and 0,11 eV, respectively. We suggest that the reduction of reorganization energy may be related to the diminishing of intramolecular hydrogen interactions.