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Conferinţa "Microelectronics and Computer Science": Recent submissions

Now showing items 601-620 of 766

Investigation of the CdTe epitaxial layers EDGE radiation spectrum structure

GASHIN, P.; GAUGASH, P.; KETRUSH, P.; FEDOROV, V.; SPRINCHEAN, V.; DMITROGLO, L. (Technical University of Moldova, 2005)

Recently the interest toward alternative energy sources had sharply increase. Solar energy conversion into electrical one is among the most perspective kinds of non- traditional kinds of energy supply. Cadmium telluride ...
Metal– semiconductor and HTSC – semiconductor contacts for diode detectors

KERNER, Iacov (Technical University of Moldova, 2005)

The numerical modeling of the electrical potential distribution and current passing in the contacts of the high temperature superconductor with semiconductor InSb had been made. There were analyzed the possibilities to ...
Influence of source temperature upon the contamination with cu of thin-film CDTE solar cells grown by close space sublimation technique

GHIMPU, L.; URSAKI, V. V.; POTLOG, T.; TIGINYANU, I. M. (Technical University of Moldova, 2005)

Photoconversion efficiencies up to 16.5 % have been attained from CdTe/CdS solar cells. CdTe/CdS heterojunction can be deposited cheaply over large areas using the close space sublimation (CSS) technique. In a previous ...
Detection in the contacts with bismuth-antimony alloy: role of contact material and influence of the surface states properties

KERNER, Iacov (Tehnica UTM, 2014)

Diode detectors (DD) are widely used in electronic information and communication systems. In this paper the numerical modeling of the electrical potential distribution and current passing in the contacts of niobium nitride ...
Măsurătoare tehnologice de rezistenţă liniară a microconductorului izolat

NASTAS, Vitalie (Tehnica UTM, 2014)

The paper contributes to solution of the problem of resistance control of overglaze microwire in the technological operations of casting and winding of resistive components. The model of (the) measured objects in this ...
Algorithms of synchronous vector modulation for hybrid multi-converter six-phase system

OLESCHUK, Valentin; ERMURATSKII, Vladimir (Tehnica UTM, 2014)

Topology of dual three-phase (six-phase) adjustable speed motor drives can be based on two standard inverters and two neutral-point-clamped converters. Control of these systems in accordance with specialized schemes and ...
Thin-film cadmium telluride solar cells

GHIMPU, L.; ANTONIUC, C.; POTLOG, T.; TIGINYANU, I.; URSAKI, V. (Technical University of Moldova, 2005)

This work investigates the photovoltaic properties of CdS/CdTe thin-film solar cells. CdS and CdTe were deposited by the close-space-sublimation method on glass plates with an area of 2x2 cm2 covered with a SnO2 layer. ...
Voltage regulators with limited capacity power supply and Non-Euclidean geometry

PENIN, Alexandr; SIDORENKO, Anatolie (Tehnica UTM, 2014)

The restriction of load power, two–valued regulation characteristic, and interference of several loads is observed in power supply systems with limited power of voltage source. The approach for interpretation of changes ...
Позиционная чувствительность 4-х контактных фотоприемников, изготовленных на основе эпитаксиальных слоев n-CdSe/слюда

СЕНОКОСОВ, Э. А.; ЧУКИТА, В. И.; ХАМИДУЛЛИН, Р. А.; ЧЕБАН, В. Н. (Tehnica UTM, 2014)

Показана возможность создания 4-х контактных позиционно - чувствительных фотоприемников из эпитаксиальных слоев n-CdSe, выращенных в квазизамкнутом объеме на кристаллах слюды. Проведен анализ их позиционной чувствительности ...
Arsenic (III) oxide crystal obtained from technological waste: photoluminescence

BARANOV, Simion; REDWING, Joan; CINIC, Boris (Technical University of Moldova, 2005)

Arsenic (III) oxide was obtained from vapor stream at processing technological waste in manufacturing of the gallium arsenide epitaxial structure. It has a cubic crystal structure, elementary cell a=11.05(4)Ǻ, Fd3m space ...
The photoelectrical properties of bilateral photoelectrochemical cell with nGaAs photo-electrode

TSIULYANU, I.; SIMASHKEVICH, A.; COJOCARU, A.; MACHIUGA, A. (Technical University of Moldova, 2005)

The conversion of solar energy in electrical one is realized by solar cells as a result of absorption of solar energy and the separation of the photoexcited carriers by potential barriers in different solid state structures ...
Structure features of protocrystalline silicon films

VORONTSOV, Alexander; EMELYANOV, Andrey; FORSH, Pavel; KONSTANTINOVA, Elizaveta; KASHKAROV, Pavel (Tehnica UTM, 2014)

The structural and electronic properties of thin protocrystalline silicon films obtained by plasma-enhanced chemical vapor deposition from hydrogen (H2) and monosilane (SiH4) gas mixture have been studied by means of ...
Investigation of registration of the optical information in the amorphous As-Se thin films

IOVU, M. S.; CIORBA, V. G.; COLOMEICO, E. P.; NASTAS, A. M.; PRISACAR, A. M. (Technical University of Moldova, 2005)

The effect of light-induced photodarkening in amorphous As100-xSex (x=40÷98) thin films for different thickness and film composition was investigated. It was established a strong dependence of the red shift of the absorption ...
Particularitățile relaxării spinului electronilor în antimonidul de galiu dopat cu fier

GHEORGHIȚĂ, Andrian; GHEORGHIȚĂ, Eugen; GUȚULEAC, Leonid; MIHĂLACHE, Alexei (Tehnica UTM, 2014)

The present paper analyzes the influence of iron upon mechanisms of the spin relaxation in the gallium antimonide, doped with iron in concentrations of up to 3% at. It is demonstrated, that the for low concentrations of ...
Electrical properties of CuInSe2 crystals obtained by gas transport method

GASHIN, P.; KETRUSH, P.; NIKORICH, V.; SUMAN, V.; TAZLAVAN, V. (Technical University of Moldova, 2005)

The ternary compounds of I-III-VI2 group and their solid solutions recently became one of the most promising materials for the fabrication of high efficiency solar cells. The unique physical properties and relatively low ...
Некоторые особенности распространения света в двойном бесконечном массиве световодов

ЛЯХОМСКАЯ, К. Д.; БЕСПАЛЕНКО, П. В. (Tehnica UTM, 2014)

The peculiarities of the propagation of laser radiation in an array of waveguides is investigated. The array consists of two infinite chains of the linear waveguides. The exact analytical solution were obtained for the ...
S–поляризованные квазиповерхностные симметричные моды в трехслойной структуре с сердцевиной из метаматериала

КОРОВАЙ, О. В. (Tehnica UTM, 2014)

Последние несколько лет в связи с бурным развитием волоконной оптики стремительно возрос интерес к созданию новых типов световодов. Это обусловлено возрастающей потребностью в повышении пропускной способности и эффективности ...
Amplification of THz radiation in the system of excitons and biexcitons

MARKOV, D. A. (Tehnica UTM, 2014)

The new mechanism of terahertz radiation generation (amplification) which is based on the use of quantum transitions between two-exciton and biexciton states is investigated. It is shown, that the enhancement coefficient ...
Теорема площадей в динамике атомно-молекулярной конверсии

ЗИНГАН, А. П.; ХАДЖИ, П. И. (Tehnica UTM, 2014)

Изучена динамика атомно-молекулярной конверсии бозе-эйнштейновского конденсата при падении на систему атомов двух импульсов когерентного лазерного излучения гауссовской формы.
Bose–Einstein condensation of two–dimensional magnetoexcitons. The influence of the excited Landau levels. Energy spectrum of two-dimensional magnetoexcitons

MOSKALENKO, S. A.; DUMANOV, E. V.; PODLESNY, Ig. V.; SHMIGLYUK, M. I. (Technical University of Moldova, 2005)

Now showing items 601-620 of 766

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