ИСТИНА

The interest to the synthesis and studies of quantum dots (QDs) in semiconductors is generated by their energy spectra and practical applications. Of particular interest are luminescent QDs embedded into various transparent matrices. Varying methods of synthesis and sizes of active luminescent QDs, it is possible to obtain matrices with given spectral characteristics. The main role in optical properties of the QDs is played by quantum size effects, therefore it is easy to control spectral characteristics varying sizes of the quantum dots. There is a series of papers describing the use of quantum dots as radiation sources or converters of ultraviolet and visible radiation in the desired spectral range. One of the methods used to increase the efficiency of solar cells is the use of QDs directly in constructions of photoelectric converters (PEC), which can give a significant extension of the total bandgap of solar cells and, thus, extension of the spectral range of the effective electric conversion. These effects are achieved by the down-conversion of the solar radiation spectra in the most efficient area of the photoelectric converter.