Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: GaSe

Sortuj według:

Ogranicz wyniki do:

Effect of optical illumination and magnetic field on the electroconductive and polarization properties of clathrate GaSe>, synthesized under lighting

Ivashchyshyn Fedir, Maksymych Vitaliy, Calus Dariusz, Matulka Dariya, Chabecki Piotr, Kunynets Andrii

Bulletin of the Polish Academy of Sciences. Technical Sciences

2022

Vol. 70, nr 5

art. no. e143104

GaSe(CS(NH2) 2(C14H10) clathrate with a hierarchical subhosthhosthguestii 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.

Multivoltaic GaSe clathrate as new hybrid functional nanostructure

Ivashchyshyn Fedir, Pidluzhna Anna, Calus Dariusz, Hryhorchak Orest, Chabecki Piotr, Makarchuk Oleksandr

Bulletin of the Polish Academy of Sciences. Technical Sciences

2021

Vol. 69, nr 2

art. no. e136726

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.

Investigation of crystalline structure defects in high-resistance monocrystals of gallium selenide

Allakhverdiev K., Bikbajevas V., Grivickas V., Odrinski A., Guseinova D., Salaev E., Tarasik M., Fedotov A.

Przegląd Elektrotechniczny

2010

R. 86, nr 7

208-210

The trapping centres in E-GaSe single crystals have been investigated by photo-induced current transient spectroscopy (PICTS). Five traps have been detected and their parameters are presented. It has been demonstrated that photo-induced depolarization oh the sample after processing in the frame of DLTS procedure could be used for determination of the traps parameters. The parameters of trap A5 obtained from PICTS and photo-induced depolarization relaxation are in close agreement.

Badano centra pułapkowe w pojedynczych kryształach E-GaSe metodą niestacjonarnej spektroskopii fotoprądowej (PICTS). Wykryto pięć pułapek, których parametry zaprezentowano. Wykazano, że foto-indukowana depolaryzacja próbki po zastosowaniu spektroskopii niestacjonarnej pojemności (DLTS) może być użyta do określenia parametrów pułapek, Parametry pułapki A5 otrzymane przy pomocy PICTS oraz DLTS wykazują wysoki stopień zgodności.