Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Steponas Ašmontas"'
Autor:
Steponas Ašmontas, Maksimas Anbinderis, Aurimas Čerškus, Jonas Gradauskas, Andžej Lučun, Algirdas Sužiedėlis
Publikováno v:
Crystals, Vol 14, Iss 8, p 720 (2024)
Planar microwave bow-tie diodes on bases of selectively doped semiconductor structures are successfully used in the detection and imaging of electromagnetic radiation in millimeter and submillimeter wavelength ranges. Although the signal formation me
Externí odkaz:
https://doaj.org/article/e2f208412ffc404185e167ba2f9031ef
Autor:
Steponas Ašmontas, Oleksandr Masalskyi, Ihor Zharchenko, Algirdas Sužiedėlis, Jonas Gradauskas
Publikováno v:
Inorganics, Vol 12, Iss 6, p 174 (2024)
The photocurrent across crystalline GaAs p-n junction induced by Nd:YAG laser radiation was investigated experimentally. It is established that the displacement current is dominant at reverse and low forward bias voltages in the case of pulsed excita
Externí odkaz:
https://doaj.org/article/c218035b0e8b4ba0bfe05bb7f49080e9
Autor:
Steponas Ašmontas, Muhammad Mujahid
Publikováno v:
Nanomaterials, Vol 13, Iss 12, p 1886 (2023)
Tandem solar cells are widely considered the industry’s next step in photovoltaics because of their excellent power conversion efficiency. Since halide perovskite absorber material was developed, it has been feasible to develop tandem solar cells t
Externí odkaz:
https://doaj.org/article/3c080599ce72492f8ee8ede3878e0a62
Autor:
Linas ARDARAVIČIUS, Skirmantas KERŠULIS, Oleg KIPRIJANOVIČ, Česlovas ŠIMKEVIČIUS, Steponas AŠMONTAS
Publikováno v:
Medžiagotyra, Vol 26, Iss 3, Pp 358-362 (2020)
The Barkhausen method is proposed to clarify the cause of radiation of electromagnetic (EM) pulses during high voltage pulse generation by piezoelectric igniters (PIs). Wide bandwidth of the experimental setup was narrowed for a simultaneous registra
Externí odkaz:
https://doaj.org/article/0fc5926def4b438aa5f41b39afa130c3
Autor:
Algirdas Sužiedėlis, Steponas Ašmontas, Jonas Gradauskas, Aurimas Čerškus, Karolis Požela, Maksimas Anbinderis
Publikováno v:
Sensors, Vol 23, Iss 3, p 1441 (2023)
The application of the unique properties of terahertz radiation is increasingly needed in sensors, especially in those operating at room temperature without an external bias voltage. Bow-tie microwave diodes on the base of InGaAs semiconductor struct
Externí odkaz:
https://doaj.org/article/f2abd207e1fa4713a48e023d7bdcd5ce
Autor:
Steponas Ašmontas, Aurimas Čerškus, Jonas Gradauskas, Asta Grigucevičienė, Remigijus Juškėnas, Konstantinas Leinartas, Andžej Lučun, Kazimieras Petrauskas, Algirdas Selskis, Laurynas Staišiūnas, Algirdas Sužiedėlis, Aldis Šilėnas, Edmundas Širmulis
Publikováno v:
Materials, Vol 15, Iss 12, p 4300 (2022)
The high efficiency of perovskite solar cells strongly depends on the quality of perovskite films and carrier extraction layers. Here, we present the results of an investigation of the photoelectric properties of solar cells based on perovskite films
Externí odkaz:
https://doaj.org/article/4e55432de2764a188068b9b4ce497345
Autor:
Algirdas Sužiedėlis, Steponas Ašmontas, Jonas Gradauskas, Aurimas Čerškus, Maksimas Anbinderis
Publikováno v:
Materials, Vol 15, Iss 9, p 3224 (2022)
Hot carriers are a critical issue in modern photovoltaics and miniaturized electronics. We present a study of hot electron energy relaxation in different two-dimensional electron gas (2DEG) structures and compare the measured values with regard to th
Externí odkaz:
https://doaj.org/article/7f58cc64e659450c94bb47e26635e13e
Autor:
Steponas Ašmontas, Aurimas Čerškus, Jonas Gradauskas, Asta Grigucevičienė, Remigijus Juškėnas, Konstantinas Leinartas, Andžej Lučun, Kazimieras Petrauskas, Algirdas Selskis, Algirdas Sužiedėlis, Edmundas Širmulis
Publikováno v:
Materials, Vol 15, Iss 5, p 1936 (2022)
Performance of a perovskite solar cell is largely influenced by the optoelectronic properties of metal halide perovskite films. Here we study the influence of cesium concentration on morphology, crystal structure, photoluminescence and optical proper
Externí odkaz:
https://doaj.org/article/320fdcc577fe4b4b887405fd367b2d8b
Autor:
Jonas Gradauskas, Steponas Ašmontas
Publikováno v:
Applied Sciences, Vol 11, Iss 16, p 7211 (2021)
Flow of photocurrent through the metal-oxide-semiconductor structure induced by the pulsed infrared CO2 laser is investigated experimentally. In the case of a perfect insulator, the photocurrent has a photocapacitive character. Its rise is based on t
Externí odkaz:
https://doaj.org/article/82ce28f8c8f94c64971b5fbee1053998
Autor:
Maksimas Anbinderis, Steponas Ašmontas, Aurimas Čerškus, Jonas Gradauskas, Andžej Lučun, Aldis Šilėnas, Algirdas Sužiedėlis
Publikováno v:
Sensors, Vol 21, Iss 13, p 4487 (2021)
The article presents the results of experimental studies of the dc and high-frequency electrical characteristics of planar microwave diodes that are fabricated on the base of the n-AlxGa1-xAs layer (x = 0, 0.15 or 0.3), epitaxially grown on a semi-in
Externí odkaz:
https://doaj.org/article/a769fd168cdd448196a446a2496016ee