Scientific Bulletin of Namangan State University


In thespectrum of lowtemperature photoluminescence ofthe fine- grained ( ) thin films is discovered a band of theown ( ) radiation, specified by the subsurface potential barriers on border of crystalline grains and marginal double-acting band, appearing as phonons repetitions of the band. The alloyage of the filmby impurity leads to stewingdouble-acting band, but itsfurther thermal processingto activation of the own band, short-wave offset of the red border ( ) and modulation of the full width on half maximum ( ) which is correlated with by the height of the micro potential barriers and temperature ofrecombined hot photocurrents.

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1. M.A. Karimov, N.X. Yuldashev. // Izv. RAN. Ser. fizich. T.71.№8, b 1186. 2007. 2. S.A. Permogorov, T.P. Surkova, A.N. Tenishev. // FTT.T.40. V. 5, b. 897. 1998. 3. B.J. Axmadaliyev, M.A. Karimov, B.Z. Polvonov, N.X. Yuldashev. Fizich.inj.poverx. 8(4), 358(2010).





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