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Wyświetlanie 1-4 z 4
Tytuł:
Multivoltaic GaSe clathrate as new hybrid functional nanostructure
Autorzy:
Ivashchyshyn, Fedir
Pidluzhna, Anna
Calus, Dariusz
Hryhorchak, Orest
Chabecki, Piotr
Makarchuk, Oleksandr
Powiązania:
https://bibliotekanauki.pl/articles/2128145.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
impedance analysis
GaSe
multiferroic
thermogalvanic effect
negative capacity
analiza impedancji
multiferroiki
efekt termogalwaniczny
pojemność ujemna
Opis:
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.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; e136726, 1--5
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multivoltaic GaSe clathrate as new hybrid functional nanostructure
Autorzy:
Ivashchyshyn, Fedir
Pidluzhna, Anna
Calus, Dariusz
Hryhorchak, Orest
Chabecki, Piotr
Makarchuk, Oleksandr
Powiązania:
https://bibliotekanauki.pl/articles/2173600.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
impedance analysis
GaSe
multiferroic
thermogalvanic effect
negative capacity
analiza impedancji
multiferroiki
efekt termogalwaniczny
pojemność ujemna
Opis:
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.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; art. no. e136726
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of optical illumination and magnetic field on the electroconductive and polarization properties of clathrate GaSe>, synthesized under lighting
Autorzy:
Ivashchyshyn, Fedir
Maksymych, Vitaliy
Calus, Dariusz
Matulka, Dariya
Chabecki, Piotr
Kunynets, Andrii
Powiązania:
https://bibliotekanauki.pl/articles/2173684.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
GaSe
thiourea
anthracene
clathrate
impedance spectroscopy
quantum capacitance
memristive effect
tiomocznik
antracen
klatrat
spektroskopia impedancyjna
pojemność kwantowa
efekt memrystyczny
Opis:
GaSe> clathrate with a hierarchical subhost> 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.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 5; art. no. e143104
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanisms of electrical conductivity, quantum capacity and negative capacitance effects in InSe nanohybrid
Autorzy:
Ivashchyshyn, Fedir
Maksymych, Vitaliy
Calus, Dariusz
Klapchuk, Myroslava
Baryshnikov, Glib
Galagan, Rostislav
Litvin, Valentina
Chabecki, Piotr
Bordun, Ihor
Powiązania:
https://bibliotekanauki.pl/articles/2173564.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
InSe
intercalation
hierarchical structures
impedance spectroscopy
density of states
negative capacity
struktury hierarchiczne
spektroskopia impedancyjna
ujemna pojemność
gęstość stanów
wtrącenie
Opis:
In this work, we present findings on the syntheses and study of properties of InSe nanohybrid. The introduction of guest component in GaSe matrix leads to an increase in inhomogeneities, which is clearly confirmed by the strengthening of the low-frequency horizontal branch of Nyquist diagrams. A constant magnetic field counteracts this effect and changes the behavior of the impedance hodograph at low frequencies to the opposite. Illumination leads to a colossal increase in quantum capacitance, which is clearly demonstrated in the Nyquist diagram. For the synthesized InSe nanohybrid the interesting behavior of the current-voltage characteristic is reported. As a result of studies of the synthesized InSe nanohybrid the effect of “negative capacity” is observed, the magnitude of which can be controlled by the electric field. Based on the constructed impedance model and proposed N-barrier model, the physical mechanisms of the investigated processes are suggested.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 1; e139958, 1--8
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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