Abstract

This paper presents the results of experimental studies for the luminescence spectral intensity redistribution of opal photonic crystals containing various active dielectrics - Bi₁₂SiO₂₀, opal - Bi₂TeO₅ and opal - NaBi(MoO₄)₂ matrix nanocomposites and filled with europium C₆H₉EuO₆ x H₂O salt. Ultraviolet excitation was provided by semiconductor laser operating at wavelengths of 400nm and 100 mW average power. An increase in the integral luminescence intensity of the matrix composite opal - Bi₁₂SiO₂₀: Eu³⁺ was found. The possibility of the participation of bismuth ions as a co-activator and luminescence concentrator also is analyzed. It has been proposed to use opal-Bi₁₂SiO₂₀ nanocomposite filled with europium as a potentially attractive material to improving the solar cell efficiency.

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