Abstract
The effect of the photonic band gap in the photonic crystal, the synthesized SiO2 opal with embedded CdSe/ZnS quantum dots, on its luminescence in the visible spectral region is studied. It is shown that the position of the photonic band gap in the luminescence and reflectance spectra for the infiltrated opal depends on the diameter of the constituent nanospheres and on the angle of recording the signal. The optimal conditions for embedding the CdSe/ZnS quantum dots from the solution into the opal matrix are determined. It is found that, for the opal-CdSe/ZnS nanocomposites, the emission intensity decreases and the luminescence decay time increases in the spatial directions, in which the spectral positions of the photonic band gap and the luminescence peak of the quantum dots coincide.
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Original Russian Text © A.N. Gruzintsev, G.A. Emelchenko, V.M. Masalov, E.E. Yakimov, C. Barthou, A. Maitre, 2009, published in Fizika i Tekhnika Poluprovodnikov, 2009, Vol. 43, No. 2, pp. 209–213.
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Gruzintsev, A.N., Emelchenko, G.A., Masalov, V.M. et al. Luminescence of CdSe/ZnS quantum dots infiltrated into an opal matrix. Semiconductors 43, 197–201 (2009). https://doi.org/10.1134/S1063782609020158
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DOI: https://doi.org/10.1134/S1063782609020158