Zobrazeno 1 - 10
of 45
pro vyhledávání: '"P. C. Euthymiou"'
Autor:
G. E. Zardas, Ch.I. Symeonides, P. C. Euthymiou, Panayiotis H. Yannakopoulos, M. Vesely, G.J. Papaioannou
Publikováno v:
Solid State Communications. 145:332-336
The aim of the present work is to investigate defects that are introduced to Gallium Phosphide (GaP) by electron irradiation as well as their dependence on the background doping. Undoped and Te doped n-type GaP have been irradiated with 1.5 MeV elect
Autor:
Panayiotis H. Yannakopoulos, O. Csabay, Chrys I. Symeonides, G. E. Zardas, P. C. Euthymiou, M. Ziska
Publikováno v:
Microelectronics Journal. 36:1-4
We investigated the photoconductivity of GaAs:Si epilayer on SI-GaAs specimens. We measured the current from the time we switched on the illumination and after switching it off as a function of time at various temperatures from 250 to 330 K. A small
Publikováno v:
Microelectronics Journal. 39:737-739
The aim of the present work is to study the density of electron transitions inside the energy gap of SI-GaAs at various temperatures and under @a-particle irradiation at 300K. The photocurrent as a function of photon energy from 1.35 to 1.80eV, for e
Autor:
Panayiotis H. Yannakopoulos, M. Vesely, P. C. Euthymiou, G. E. Zardas, M. Ziska, Chr. Symeonides
Publikováno v:
Microelectronics Journal. 37:91-93
In the present work, we study the Energy gap ( E g ) of the Si–GaAs at various temperatures in the range from 250 up to 350 K, using the photoconductivity method, in order to find the relation between the E g and the temperature. We have measured t
Autor:
T. A. Kuzemchenko, V.S. Vavilov, P.D. Bekris, S. Yu. Sokolov, D. L. Khavroshin, C.D. Kourkoutas, M.V. Chukichev, G. N. Galkin, L. K. Vodopyanov, R. R. Resvanov, E. A. Bobrova, Yu. A. Aleshchenko, A. E. Kiv, P. C. Euthymiou
Publikováno v:
Radiation Effects and Defects in Solids. 125:323-331
New experimental data are presented which indicate the change of defect centers concentration in GaAs at macroscopic (up to millimeters) distances from the implanted regions edge. These data were obtained by locally exited cathodoluminescence, by obs
Effect of α-Particle Irradiation on AlGaAs/GaAs Planar Photoconductive Detectors at Low Temperatures
Publikováno v:
Physica Status Solidi (a). 133:K49-K52
Publikováno v:
Physica Status Solidi (a). 123:K79-K82
Etude des changements des caracteristiques courant-tension de ce materiau, prises a de faibles valeurs de U ds et a differentes temperatures de 100 a 294 K, apres irradiation avec des particules α de 2,84 MeV a 100 K
Publikováno v:
Physics-Uspekhi. 42:199-201
Evidence for persistent photoconductivity, i.e., electrical conductivity changes existing for a very long time after the excitation of nonmetallic solids by photons, was furnished back in the 19th century and put to practice even before modern solid-
Publikováno v:
Solid State Communications. 74:305-308
DLTS studies on as grown Czochralski n -type GaP : Te show peaks corresponding to electron activation of 0.205, 0.485, 0.65 and 0.567 eV. After irradiation by 1 MeV electrons at room temperature two new levels are found at 0.248 and 0.329 eV and the
Publikováno v:
Solid State Communications. 80:321-323
The influence of the electron and hole traps, introduced by electron irradiation, on the drift mobility and carrier concentration profiles of the GaAs epitaxial layer structure was investigated. The DLTS and DLOS measurements indicated three electron