Zobrazeno 1 - 10
of 41
pro vyhledávání: '"V E Tezlevan"'
Publikováno v:
Solar Energy Materials and Solar Cells. 112:127-133
Resistivity, ρ(T), in single crystals of p-Cu2ZnSnS4 is investigated in the temperature interval of T∼300−10 K. Below ∼200 K, ρ(T) exhibits an activated character obeying between ∼130−150 K and ∼30−70 K the Mott variable-range hopping
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d65d67efca4eb59270ffb70d3952032
https://doi.org/10.1016/j.solmat.2013.01.027
https://doi.org/10.1016/j.solmat.2013.01.027
Autor:
Sergiu Levcenko, José Manuel Merino, V. E. Tezlevan, N. N. Syrbu, A. Nateprov, Máximo León, Ernest Arushanov
Publikováno v:
physica status solidi (a). 203:2909-2912
Optical absorption spectra of CuIn 5 Se 8 and CuGa 3 Se 5 single crystals grown by chemical vapour transport were investigated in the range of 10-300 K. The logarithmic variation of the absorption coefficient with photon energy observed in both compo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd7655d5c4812ace6958c17a57202607
https://doi.org/10.1002/pssa.200669505
https://doi.org/10.1002/pssa.200669505
Publikováno v:
Journal of Physics: Condensed Matter. 14:6801-6813
MIn2S4 (M = Mn, Cd, Mg) spinels were investigated by Raman scattering spectroscopy under hydrostatic pressure up to 20 GPa. These compounds were found to undergo a reversible phase transition to a Raman-inactive defect NaCl-type structure. Transition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5454e0554dbed58ac7135c3a4c64150
https://doi.org/10.1088/0953-8984/14/27/304
https://doi.org/10.1088/0953-8984/14/27/304
Autor:
N. Fabre, Leonid Kulyuk, Ernst Bucher, Ernest Arushanov, A. Micu, V. E. Tezlevan, D. Shaban, Jan Hendrik Schön
Publikováno v:
Scopus-Elsevier
CuGaSe2 single crystals were doped with B and Ge by ion implantation and analyzed by Hall effect, photoluminescence, and reflected second harmonic generation measurements. After ion implantation the crystals exhibited a destroyed surface structure. M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b75934ac75b4925aeb83ed6505e9438c
https://doi.org/10.1063/1.368194
https://doi.org/10.1063/1.368194
Publikováno v:
Crystal Research and Technology. 33:135-144
In this work the reflectivity spectra and wavelength derivative reflectivity (WDR) spectra of CuInS 2 crystals have been investigated in the region E ≥ Eg. The n = 1, n = 2 and n = 3 excitonic states are determined and contours of exciton lines n =
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99fcfdda11a302770359cb7df7049de8
https://doi.org/10.1002/(sici)1521-4079(1998)33:1<135::aid-crat135>3.0.co
https://doi.org/10.1002/(sici)1521-4079(1998)33:1<135::aid-crat135>3.0.co
Publikováno v:
Crystal Research and Technology. 31:307-314
Raman and infrared reflectivity spectra of CdInGaS 4 , CdIn 2 S 4 , HgInGaS 4 , and CdIn 2 S 2 Se 2 crystals have been investigated. The fundamental phonon parameters, the limiting dielectric constants e 0 and E∞ and the reflectivity spectrum conto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::452a5eb862fc72449abc08e7c0b1032c
https://doi.org/10.1002/crat.2170310308
https://doi.org/10.1002/crat.2170310308
Publikováno v:
Physical Review B. 86
Cu${}_{2}$ZnSnS${}_{4}$ single crystals prepared by the chemical vapor transport technique were investigated by x-ray diffraction, chemical microprobe analysis, and Raman and photoluminescence spectroscopies. Single-crystal x-ray measurements show th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a563f0891fa19a5243d8ec4ce584976
https://doi.org/10.1103/physrevb.86.045206
https://doi.org/10.1103/physrevb.86.045206
Publikováno v:
Crystal Research and Technology. 25:579-586
Infrared reflectivity spectra of the spinel compound CuIn5S8 are measured at room temperature in the wavenumber range from 180 to 4000 cm−1. It is found that the spectra are dominated by two strong modes with frequencies and oscillator strengths th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd341f3f92d66f530e333905a4a25017
https://doi.org/10.1002/crat.2170250524
https://doi.org/10.1002/crat.2170250524
Autor:
V. E. Tezlevan, Theo Rasing, V. Mirovitskii, T. Dumouchel, E. Fortin, Máximo León, Elena Mishina, Ernest Arushanov, N. E. Sherstyuk, Leonid Kulyuk
Publikováno v:
Applied Physics Letters, 89, 151915-1-151915-3
Applied Physics Letters, 89, 15, pp. 151915-1-151915-3
Applied Physics Letters, 89, 15, pp. 151915-1-151915-3
CuIn5Se8 bulk single crystals were characterized using ellipsometry, photoluminescence (PL), and optical second harmonic generation (SHG). The refractive n(E) and absorption k(E) indices as functions of photon energy E are determined. The structure o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f99f1ad6071da33c161703f5a89aae33
http://hdl.handle.net/2066/35366
http://hdl.handle.net/2066/35366
Publikováno v:
1997 International Semiconductor Conference 20th Edition. CAS '97 Proceedings.
In this work, the wavelength derivative reflection (WDR) spectra of CuIn/sub 1-x/Ga/sub x/S/sub 2/ crystals have been investigated in the region of A, B and C series. The n=1, n=2 and n=3 states are determined and contours of exciton lines (n=1) are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7be2f4848a3ca20fba545f36fb15c4ed
https://doi.org/10.1109/smicnd.1997.651242
https://doi.org/10.1109/smicnd.1997.651242