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Multivoltaic GaSe>SmCl3> clathrate as new hybrid functional nanostructure

Fedir Ivashchyshyn Anna Pidluzhna Dariusz Calus Orest Hryhorchak Piotr Chabecki Oleksandr Makarchuk
Bulletin of the Polish Academy of Sciences Technical Sciences | 2021 | 69 | 2 | e136726 | DOI: 10.24425/bpasts.2021.136726
Słowa kluczowe impedance analysis GaSe multiferroic thermogalvanic effect negative capacity
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Abstrakt

The electrical properties and behaviour in constant magnetic field of fourfold expanded GaSe matrix intercalated with SmCl 3 guest were investigated by means of impedance spectroscopy and cyclic voltammetry. It was determined that the synthesized GaSe< SmCl 3> clathrate of 4-fold expansion demonstrates the coexistence of mechanisms of generation, transformation and accumulation of electric energy on a quantum level. These mechanisms are driven from external sources of magnetic, thermal and electric field without Faradaic reactions. Therefore, investigated GaSe< SmCl 3> structure is of great attraction in multivoltaics as a prototype of new class of materials. Quantum mechanical model of electro motive force of spin nature is proposed. The main focus of work lies in the prospects of synthesized clathrates for the development of power nanosources and gyrator-free delay nanolines controlled by means of magnetic field.
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Autorzy i Afiliacje

Fedir Ivashchyshyn
1 2
ORCID: ORCID
Anna Pidluzhna
2
ORCID: ORCID
Dariusz Calus
1
ORCID: ORCID
Orest Hryhorchak
3
ORCID: ORCID
Piotr Chabecki
1
ORCID: ORCID
Oleksandr Makarchuk
1 2
ORCID: ORCID
  1. Czestochowa University of Technology, Al. Armii Krajowej 17, 42-200 Czestochowa, Poland
  2. Lviv Polytechnic National University, Bandera 12, Lviv, 79013, Ukraine
  3. Ivan Franko Lviv National University, Cyril and Methodius 8, Lviv, 79005, Ukraine

Effect of optical illumination and magnetic field on the electroconductive and polarization properties of clathrate GaSe<CS(NH 2) 2<C 14H 10>>, synthesized under lighting

Fedir Ivashchyshyn Vitaliy Maksymych Dariusz Calus Dariya Matulka Piotr Chabecki Andrii Kunynets
Bulletin of the Polish Academy of Sciences Technical Sciences | 2022 | 70 | 5 | e143104 | DOI: 10.24425/bpasts.2022.143104
Słowa kluczowe GaSe thiourea anthracene clathrate impedance spectroscopy quantum capacitance memristive effect
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Abstrakt

GaSe<CS(NH 2) 2<C 14H 10>> clathrate with a hierarchical subhost<host<guest>> type architecture was formed under illumination and its electrically conductive properties were studied. The method of impedance spectroscopy studied the frequency behavior of the real and imaginary parts of the complex total impedance in the range of 10 -3-10 6 Hz. The measurements were performed under normal conditions, in a permanent magnetic field (220 kA/m), or under light illumination (for a standard solar spectrum AM 1.5 G total available power is 982 W/m 2). The structure of the impurity energy spectrum at the Fermi level was investigated by the method of thermostimulated discharge in the temperature range from 240 to 340 K. Using Jebol-Pollack theoretical approaches based on impedance spectra, the parameters of the impurity energy spectrum were calculated, such as the density of states at the Fermi level, the jump radius , the scatter of trap levels near the Fermi level and the real density of deep traps. As evidenced by studies, illumination during clathrate synthesis, forms an internal electret polarization, which leads to abnormal behavior of the photoresistive effect and to the appearance of the memristive effect. The imposition of a permanent magnetic field during the measurement of complex resistance leads to the appearance of quantum capacitance.
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Autorzy i Afiliacje

Fedir Ivashchyshyn
1 2
ORCID: ORCID
Vitaliy Maksymych
2
ORCID: ORCID
Dariusz Calus
1
ORCID: ORCID
Dariya Matulka
2
ORCID: ORCID
Piotr Chabecki
1
ORCID: ORCID
Andrii Kunynets
2
ORCID: ORCID
  1. Czestochowa University of Technology, Al. Armii Krajowej 17, 42-200 Częstochowa, Poland
  2. Lviv Polytechnic National University, Bandera Str. 12, Lviv, 79013, Ukraine

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