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F. A. Ptashchenko 《Journal of Applied Spectroscopy》1998,65(3):469-472
The kinetics of the decay in the electroluminescence intensity after gating a rectangular pulse of current in the p-n-transition
with inhomogeneities, in particular, accumulations of dislocations is calculated. The basic assumptions are: on gating the
rectangular pulse of current, a portion of the electrons injected into the thin p-region is extracted into the n-region, whereas
the same number of electrons are injected into the inhomogeneity where they recombine without emission; the intensity of nonradiative
recombination on the inhomogeneity is limited by drift of majority charge carriers (by leakages). It is shown that nonradiative
recombination on inhomogeneities leads to nonexponential kinetics of electroluminescence, whose instantaneous relaxation time
decreases with time.
Odessa State Naval Academy, 8 Didrikhson St., Odessa, 270029, Ukraine. Translated from Zhurnal Prikladnoi Spektroskopii, Vol.
65, No. 3, pp. 450–453, May–June, 1998 相似文献
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The effect of injection current on the intensity and angular distribution of radiation in TE- and TM-polarized modes of diode
lasers with a stripe geometry and double GaAs-AlGaAs-based heterostructure is investigated. The analysis of the angular distribution
of radiation revealed the nonmonotonic behavior of its astigmatism with increase in the current. The coefficient of astigmatism
in the mode of lasing is substantially higher for the TE-mode than for the TM-mode. An increase in radiation astigmatism is
accompanied by a decrease in the differential effectiveness and polarization degree. These specific features are explained
by the interaction of the defocusing action of distribution of the refractive index n(x) in the plane of the p-n-transition
with a minimum under the center of the stripe contract (at x=0) with the focusing action of the gain coefficient distribution.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 67, No. 4, pp. 461–464, July–August, 2000. 相似文献
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Koksharova T. V. Ptashchenko A. A. Masleeva N. V. Fel'dman S. V. Pasternak N. N. Stukalov S. A. 《Theoretical and Experimental Chemistry》2002,38(4):263-267
The temperature dependence of the resistivity of tablets of hexacyanoferrate(II)–thiosemicarbazide complexes of chromium(III), manganese(II), iron(III), cobalt(III), nickel(II), copper(II), and zinc(II) was measured in the range 20-90 °C. A relationship between the conductivity of a substance and the rate constant for the catalytic decomposition of hydrogen peroxide is established. 相似文献
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Lipovskii I. M. Sverdlov L. M. Ptashchenko A. A. Baranov V. M. Teplyakov V. A. Litovchenko L. F. Sukhov F. F. Borshchagovskaya L. S. Karatun A. A. Pankratov A. N. Slovokhotova N. A. Vinograd É. L. Gurevich N. Yu. Tsirlin Yu. A. Bobkova V. A. Aleshonkova Yu. A. Godnev I. N. Zagidullin M. V. Sinitsyn I. G. Shelepin L. A. 《Journal of Applied Spectroscopy》1979,30(4):534-536
Journal of Applied Spectroscopy - 相似文献
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