Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Ya. E. Pokrovskii"'
Autor:
N. A. Khval’kovskii, Ya. E. Pokrovskii
Publikováno v:
Journal of Experimental and Theoretical Physics. 117:742-746
Spontaneous emission and photoconductivity of germanium with gallium impurity are studied for determining the energy spectrum of hole states in this material in which radiation can be induced as a result of transitions of holes between these states.
Autor:
Ya. E. Pokrovskii, N. A. Khval’kovskii
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 80:335-338
To identify optical transitions that can excite long-wavelength stimulated radiation in uniaxially compressed Ga-doped germanium, the absorption and photoconduction spectra of this material were studied over a wide range of pressures in the [111] and
Autor:
N. A. Khval’kovskii, Ya. E. Pokrovskii
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 79:650-656
The kinetics of photoconductivity is studied in silicon doped with B, Al, Ga, In, P, As, and Sb with concentrations of 1016–1018cm−3 at 4.2 and 10.5 K placed in an 8-mm microwave electric field under pulsed impurity excitation. It is found that i
Autor:
N. A. Khval’kovskii, Ya. E. Pokrovskii
Publikováno v:
Semiconductors. 37:1266-1274
The long-wavelength bands of absorption by the impurity pairs and photoconductivity in the microwave (8 mm) electric field with the impurity pulse photoexcitation are investigated for Si doped by B, Al, Ga, In, P, As, and Sb in concentrations 1016–
Autor:
Ya. E. Pokrovskii, N. A. Khval’kovskii
Publikováno v:
physica status solidi (c). :707-710
In Si doped with group III and V impurities at concentrations of 1016–1018 cm–3 infrared absorption bands of impurity pairs (IPs) appear and there is a slow relaxation of polarization hopping photoconductivity (PC) in a microwave (MCW) electric f
Publikováno v:
Journal of Experimental and Theoretical Physics. 95:83-86
Infrared absorption bands, shifted to regions of lower energies relative to narrow lines of transitions of impurities to excited states, are investigated in silicon doped with group III and V impurities in concentrations above 1016 cm−3. It is foun
Publikováno v:
physica status solidi (b). 210:809-813
Publikováno v:
Journal of Experimental and Theoretical Physics. 87:1201-1204
The kinetics of the photoresponses in constant and microwave electric fields and the variation of the absorption of background radiation in GaP doped with Te (2×1017 cm−3) upon impurity excitation at 5–50 K are investigated. The lifetime of the
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 66:241-244
The photoconductivity (PC) spectra and the induced absorption of background radiation in the energy range 10–40 meV are investigated in weakly compensated B-, Ga-, and As-doped silicon at 4.2 K. It is shown that dips corresponding to the photoioniz
Publikováno v:
Journal of Experimental and Theoretical Physics. 85:121-129
The lifetime of charge carriers in the lowest excited states of some impurities of groups III and V in diamond, silicon, and germanium can be several (four to six) orders of magnitude longer that the lifetime of free carriers. Accumulation of carrier