A comparative study of low-temperature thermoluminescence (5–120 K) of silicon organic polymer poly(di-n-hexyl silane) films, nanocomposites (when the polymer is introduced into nanopores of silica МСМ-41 and SBA-15 with diameter of pores 2.8 and 10 nm) as well as solutions of polymer in tetrahydrofuran with different concentrations from 10–3 to 10–5 mol/L was carried out. It was shown that it is possible to control the number of charge carrier traps, as well as their energy distribution by changing the diameter of silica nanopores. It is established that maxima and FWHMs of the thermoluminescence curves of nanocomposites significantly depend on the pore diameter of the nanoporous silica. This result agrees with the data obtained in the investigation of polymer solutions. In the nanocomposite with a minimum pore diameter (2.8 nm), the number and depth of the traps as well as dispersion of their energy are significantly reduced compared to their values in the polymer film.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 85, No. 1, pp. 44–48, January–February, 2018.
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Ostapenko, N.I., Kerita, O.A. & Ostapenko, Y.V. Thermoluminescence of the Films, Nanocomposites, and Solutions of the Silicon Organic Polymer Poly(di-n-hexyl silane). J Appl Spectrosc 85, 37–41 (2018). https://doi.org/10.1007/s10812-018-0608-6
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DOI: https://doi.org/10.1007/s10812-018-0608-6