Abstract
A theoretical model is presented of the visible, near-infrared, and near-ultraviolet transmittance spectra of arbitrarily-shaped small-sized insulator particles embedded in an insulator in relation to the particle dimensions and the radiation frequency. The model is based on a number of assumptions. In the band gap of the nanoparticles, there are allowed energy bands produced by surface defects. Two-particle states (electron-hole pairs) are only slightly confined, and the size-quantized states of charge carriers are formed in the conduction band; the states depend on the shape and dimensions of the nanoparticles. By the example of Al2O3 nanoparticles introduced into a liquid matrix of a transparent insulator, the results of experimental studies are compared with the theoretical model.
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Original Russian Text © J.N. Kulchin, V.P. Dzyuba, A.V. Shcherbakov, 2009, published in Fizika i Tekhnika Poluprovodnikov, 2009, Vol. 43, No. 3, pp. 349–356.
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Kulchin, J.N., Dzyuba, V.P. & Shcherbakov, A.V. Optical transmittance spectra of insulator nanoparticles in bulk heterocomposites. Semiconductors 43, 331–339 (2009). https://doi.org/10.1134/S1063782609030130
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DOI: https://doi.org/10.1134/S1063782609030130