Search Results - "ARSOVA, D"

Transition of reversible photodarkening to photobleaching in chalcogenide films by Vateva, E, Arsova, D

“…Photodarkening (PD) of chalcogenide glasses and annealed films (i.e., photoinduced shift of the optical absorption edge to lower energies) is accompanied with…”
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Voltage oscillations in the case of the switching effect in thin layers of Ge–Sb–Te chalcogenides in the current mode by Fefelov, S. A., Kazakova, L. P., Arsova, D., Kozyukhin, S. A., Tsendin, K. D., Prikhodko, O. Yu

“…The I–V characteristics obtained for layers of chalcogenide vitreous semiconductor of the Ge–Sb–Te system in the current-generator mode are investigated. The…”
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Interdependence of optical parameter changes in Ge–As–S films by Vateva, E., Arsova, D., Miloushev, I.

“…The presence or absence of correlation between irreversible and reversible photo- and thermoinduced changes of optical band gap ( E g ) and refractive index (…”
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Spectroscopic ellipsometry study of the effect of illumination and thermal annealing on the optical constants of thin Ge–As–S films by Pamukchieva, V, Szekeres, A, Arsova, D

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Oxygen assisted photoinduced changes in Ge39Ga2S59 amorphous thin film by KNOTEK, P, KINCL, M, TICHY, L, ARSOVA, D, IVANOVA, Z. G, TICHA, H

“…Annealing of the Ge39Ga2S59 virgin amorphous thin film leads to the blue shift of the optical band gap owing to an increase of the film network order and to a…”
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Bond arrangement and optical band gap in GexAs40-xS(Se)60 glasses and thin films by ARSOVA, D

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Photo-expansion in Ge-As-S amorphous film monitored by digital holographic microscopy and atomic force microscopy by Knotek, P, Arsova, D, Vateva, E, Tichy, L

“…Using Digital Holographic Microscopy and Atomic Force Microscopy we unambiguously observed considerable photo-expansion at around 3.5% in virgin as well as in…”
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Photoinduced changes in sulphur rich Ge-As-S thin films by Arsova, D, Vateva, E, Pamukchieva, V

“…The irreversible and reversible photoinduced (PI) changes in thin films of Ge(11.2)As(18)S(70.8)glass (Z = 2.4) have been studied. Glasses with compositions…”
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Study of photo- and thermally-induced changes in Ge-As-S thin films by spectroscopic ellipsometry by Pamukchieva, V, Szekeres, A, Arsova, D

“…The effect of illumination and post-illumination annealing on the optical properties and thicknesses of thin (~ 150 nm) films of Ge(30.8)As(5.7)S(63.5) and…”
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Composition and temperature dependence of the low-frequency Raman scattering in Ge–As–S glasses by Boulmetis, Y.C., Perakis, A., Raptis, C., D.Arsova, Vateva, E., Nesheva, D., Skordeva, E.

“…The Raman spectra of ‘stoichiometric’ (GeS2)x(As2S3)1−x glasses are presented for various compositions (x=0.40, 0.60, 0.80, 0.83, 0.90) and compared to that of…”
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Irreversible and reversible changes in band gap and volume of chalcogenide films by Vateva, E., Arsova, D., Skordeva, E., Pamukchieva, V.

“…Irreversible and reversible changes induced by illumination and/or annealing of thin evaporatively deposited Ge-As-S films at normal incidence are studied…”
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Low-temperature specific heat and thermal conductivity of ternary chalcogenide glasses by Vateva, E, Terziyska, B, Arsova, D

“…The main results from the investigated in the temperature range 3-300 K thermal properties, specific heat Cp and thermal conductivity k, of the GexAs40-xS60…”
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Photoinduced changes of the optical parameters of thin films from Ge30.8AS57S63.5 glass by Yakuphanoglu, F, Arsova, D, Vateva, E

“…Extremely high irreversible changes of the optical parameters have been found after long time illumination of thin films thermally evaporated from Gem eAS5…”
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PHOTOINDUCED CHANGES IN Ge-As-S THIN FILMS WITH VARIOUS NETWORK RIGIDITIES by Arsova, D, Skordeva, E, Pamukchieva, V, Vateva, E

“…Photo- and thermally induced changes in the optical bandgap and thickness are investigated in thin films that belong to three lines traced through regions with…”
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Low-temperature thermal conductivity of GexAs40-xS60 glasses by TERZIYSKA, B, MISIOREK, H, VATEVA, E, JEZOWSKI, A, ARSOVA, D

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STRUCTURE AND DYNAMICS OF Ge-As-S CHALCOGENIDE GLASSES MONITORED BY LOW-FREQUENCY RAMAN SCATTERING by Boulmetis, Y C, Raptis, C, Arsova, D

“…The Raman scattering spectra of several 'stoichiometric' (GeS2)(As2S3)i-x glasses have been measured over temperatures ranging from 20 K, through the…”
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Low-temperature specific heat of Ge-As-S glasses by Terziyska, B., Czopnik ✠, A., Vateva, E., Arsova, D., Czopnik, R.

“…The low-temperature specific heat C p of Ge x As 40− x S 60 glasses has been measured in the temperature range from 3 to 70 K. It has been established that the…”
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CHANGES IN THE ELECTRONIC STRUCTURE OF Ge-As-S THIN FILMS AFTER ILLUMINATION by Pamukchieva, V, Skordeva, E, Arsova, D, Guimon, M-F, Gonbeau, D

“…The electronic structure of Ge-As-S glasses and films has been studied by means of X-ray photoelectron spectroscopy (XPS). Several compositions from two lines…”
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The boson peak in Raman spectra of AsxS1−x glasses by Arsova, D., Boulmetis, Y. C., Raptis, C., Pamukchieva, V., Skordeva, E.

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Photo- and thermo-induced bandgap and volume changes in Ge-based chalcogenide films by ARSOVA, D, PAMUKCHIEVA, V, VATEVA, E, SKORDEVA, E

“…Irreversible and reversible changes induced by illumination and/or annealing of thin Ge-As-S films are studied. Attention is paid to the volume (thickness)…”
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