ПросмотрВыпуск 2022 года по теме "luminescence"

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    • Investigation of the temperature and precursors concentration dependence of the formation of ZnSe quantum dots 

      Duisenbay, B.A.; Alibay, T.T.; Akhmetova, A.S.; Zhangylyssov, K.B.; Daurenbekova, R.K.; Kainarbay, A.Zh.; Nurakhmetov, T.N.; Daurenbekov, D.H. (2022)
      Various variations of the synthesis of ZnSe quantum dots are investigated. The influence of temperature, the concentration of precursors and the time of synthesis of quantum dots was taken into account. Aliquot absorption spectra is measured for various time intervals and the dynamics of the growth of ZnSe quantum dots is estimated. Luminescence and absorption spectra were ...
      2023-12-06

    • Photoluminescence and thermoluminescence in a Li2SO4 crystall 

      Nurakhmetov, T.N.; Zhunusbekov, A.M.; Kainarbay, A.Zh.; Daurenbekov, D.H.; Tolekov, D.A.; Sadykova, B.M.; Temirkulova, N.I.; Zhangylyssov, K.B.; Alibay, T.T.; Shamieva, R.K.; Manat, A.A.; Kabadulla, T.M. (2022)
      The nature of intrinsic emission and the creation of electron-hole trapping centers in irradiated with ultraviolet and X-rays at 15 K and 300 K was investigated in Li2SO4 by methods of spectroscopy. It is shown that in activated Li2SO4 with an energy of 6 ÷ 12.4 eV, emission appears in a wide spectral range to excite rare earth ions that are used as UV sources. These same photons ...
      2023-12-06