An analysis of the use of semiconductor solar cells based on thin-film cadmium telluride (CdTe) in power engineering is carried out. It is shown that the advantages of thin-film technology and CdTe itself as a direct-gap semiconductor open up the prospect of large-scale production of competitive CdTe solar modules. The physical and technical problems of increasing the efficiency of CdS/CdTe heterostructure solar cells, which are significantly inferior to the theoretically possible value in mass production, are discussed. The state of CdTe thin-film solar cells, which make CdTe a suitable material for ground-based photoelectric conversion of solar energy, the historical development of the CdTe compound, the application of CdTe thin films, the main methods and strategies of device production, device analysis and fundamental problems related to the future development of thin-film modules based on cadmium telluride.

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In bearing structures of automobile dump truck semi-trailers engaged in the transport of agricultural goods, mineral fertilizers, a large part of metal structures is under the direct influence of aggressive environments in combination with dynamic loads that arise when driving on roads. The peculiarities of corrosion processes when contacting steel surfaces of dump semi-trailers with mineral fertilizers, as well as their aqueous solutions, are insufficiently studied. Also studied mechanisms of electrochemical corrosion of materials of metal structures of agricultural vehicles to ensure their performance in conditions of prolonged aggressive environments. The authors determined that the mineral fertilizer medium is the most aggressive material used in cargo transportation in the agrarian sector mineral fertilizer and ammonium sulphate cause intense corrosion damage of typical materials of metal structures of automobile dump-carriers, which adversely affects reliability. The obtained results allow a better understanding of the causes of agricultural machines corrosion and can be used in assessing their residual resource.