Browsing by Department "Fizikos katedra / Department of Physics"
Now showing items 1-20 of 37
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A new concept of electronic devices based on type II superconductor YBCO films with channel for motion of magnetic vortice
(14th International Scientific Conference Intelligent Technologies in Logistics and Mechatronics Systems, ITELMS'22, September 15th, 2022, Panevėžys, Lithuania, 2022)The critical superconducting current is one of the most important characteristics of superconducting films if films are applied in low- and high-power superconducting electronic and/or optoelectronic devices. If the ... -
Akytojo silicio sluoksnio charakterizavimas poliarizacinės elipsometrijos būdu
(8-osios Lietuvos jaunųjų mokslininkų konferencijos "Lietuva be mokslo - Lietuva be ateities" medžiaga : bioinžinerija ir bioinformatika (2005 m. balandžio 14 d.), fizika ir fizinė kompiuterija (2005 m. balandžio 8 d.), 2005) -
Ar Lietuvai reikia fotoelektros?
(Mokslas ir technika : Lietuvos MA ir Lietuvos inžinierių sąjungos mėnesinis žurnalas, 2012)Keletas statistinių duomenų. Pasaulyje per metus sunaudojama per 30 mlrd. barelių naftos. Preliminariais 2007 m. duomenimis, vis dar kiek didesniais naftos ištekliais gali pasigirti Kanada ir Irakas. Jei naftos poreikis ... -
Assessment of air pollution with polychlorinated dibenzodioxins (PCDDs) and polychlorinated dibenzofuranes (PCDFs) in Lithuania
(Atmosphere, 2020)Polychlorinated dibenzodioxins and polychlorinated dibenzofurans (PCDD/F) are highly bioavailable in humans, either through direct inhalation or indirectly by trophic transfer from contaminated food or water. The main ... -
Coherent magnetic vortex motion in optically-formed channels for easy flow in YBa2Cu3O7-x superconducting thin films
(8th International conference on photo-excited processes and aplications (ICPEPA-8), August 12-17, 2012, 2012) -
Comparative assessment of radiation background due to natural and artificial radionuclides in soil in specific areas on the territories of State of Washington (USA) and Lithuania
(Water, air & soil pollution, 2020)Activity concentrations of 226Ra, 232Th, 40K, and 137Cs in soil samples collected at Mount Rainier National Park and Satsop Nuclear Power Plant zone in State of Washington (USA) and Curonian Spit National Park and Ignalina ... -
Direct hot carrier impact on the operation of a solar cell
(AIP publishing horizons – Applied physis reviews – Energy storage and conversion, 4-6 August 2021 : virtual conference, 2022) -
Direct impact of hot carriers on the operation of a p-n junction solar cell
(44-oji Lietuvos nacionalinė fizikos konferencija, 2021 m. spalio 6-8 d., Vilnius : programa ir pranešimų tezės: Lietuvos mokslo premijos laureatai. Pasaulio lietuvių mokslo premijos laureatai. Žymūs Lietuvos ir užsienio mokslininkai. Speciali sesija „Fizika ir aukštųjų technologijų pramonė", 2022) -
Fotoelektros potencialo transporto eismą kontroliuojančiose priemonėse tyrimas
(43-oji Lietuvos nacionalinė fizikos konferencija, 2019 m. spalio 3-5 d., Kaunas: pranešimų medžiaga, 2019)Fotoelektra – alternatyvios energijos rūšis, išgauta saulės šviesą paverčiant elektros energija. Saulės šviesa – energijos šaltinis, lengvai prieinamas ištisus metus, šviesiuoju paros metu ir esant menkam debesuotumui. ... -
Hot carrier evidence in a solar cell
(EU PVSEC: Proceedings of the international conference 37th European photovoltaic solar energy conference and exhibition, 7-11 September 2020, 2020)According to the Shockley-Queisser theory, only photons with energy h close to a semiconductor forbidden energy gap Eg are used effectively for electrical power generation. Lower energy photons are assumed as not absorbed ... -
Hot carriers in photoresponse formation across GaAs P-N junction
(Open readings 2022 : 65th international conference for students of physics and natural sciences, March 15-18, 2022, Vilnius, Lithuania : abstract book, 2022) -
Identification of number, frequency, and power of sources of electromagnetic radiation in the human living area
(Open Readings 2021: 64th international conference for students of physics and natural sciences, March 16-19, 2021, Vilnius, Lithuania : abstract book, 2021)The experimentally measured radiation power verified through the results of our calculations of the power rate using inverse distance square law helped us to recognize the presence of the “unknown” source of radiation, to ... -
Influence of environmental properties on solar cell efficiency
(3rd International conference „Smart Bio“, 02-04 May 2019, Kaunas, Lithuania : abstract book, 2019) -
Influence of thermoelectricity on conversion efficiency of solar cells
(Abstracts of scientific reports for the XVIII International Forum on Thermoelectricity in the following lines: theory of thermoelectricity metrology in thermoelectricity, thermoelectric material science, thermoelectric devices and instruments, October 26-30, 2020, 2020) -
Integrated evaluation of road transport pollution impact on the urban air
(10th International Conference “Environmental Engineering” (ICEE-2017), 2017)With the number of vehicles increasing, the analysis of urban air pollution becomes expedient. This article deals with the integrated evaluation of road transport realised pollutant impact on the urban air. During research, ... -
Investigation and application of hot carrier phenomenon in photovoltaics //
(2023)The dissertation analyses the direct impact of the hot carrier phenomenon on the operation of a single-junction solar cell. Ways to suppress the influence of the hot carrier effect are determined based on the achieved ... -
Magnetinių sūkurių koherentinio judėjimo deguonimi nuskurdintu YBCO dariniu tyrimai.
(44-oji Lietuvos nacionalinė fizikos konferencija, 2021 m. spalio 6 - 8 d., Vilnius : programa ir pranešimų tezės, 2021)II-osios rūšies superlaidininkuose superlaidusis virsmas lydimas mišriosios medžiagos fazės. Joje gali koegzistuoti superlaidi ir nesuperlaidi (t. y. normali) medžiagos fazės, nors medžiagos temperatūra žemesnė nei kritinė ... -
Microwave detectors based on porous silicon
(Technical physics letters, 2006)Two types of structures comprising porous silicon (por-Si) layers between metal electrodes were prepared, which possessed nonlinear (A type) and linear (B type) current–voltage characteristics. The exposure to microwave ... -
Natural radionuclides in soil and evaluation of their exposure in specific areas on the territory of Lithuania
(7th International conference on radiation in various fields of research (RAD 2019), June 10-14th, 2019, Herceg Novi, Montenegro : book of abstracts, 2019)The following three unique areas in Lithuania have been chosen for the research: Vilnius, Juodkrantė and Visaginas. Vilnius is the city with the largest population in the country which is dominated by an anthropogenic ... -
PCDD/F susiformavimo Vilniaus mieste ir pernašos atmosferoje tyrimas
(43-oji Lietuvos nacionalinė fizikos konferencija, 2019 m. spalio 3-5 d., Kaunas: pranešimų medžiaga, 2019)Polichlorinti dibenzo-p-dioksinai ir polichlorinti dibenzofuranai (PCDD/F) – tai pusiau lakieji organiniai junginiai, pasižymintys stabilumu aplinkoje, tolima pernaša atmosferoje. Dalis dioksinų izomerų toksiški, turintys ...