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SILICON NANOSTRUCTURES FOR SOLAR HYDRGEN GENERATION: ADVANTAGE AND PERSPECTIVES
Abstract
Nowadays, modern technical solutions in various spheres of human activity from the opto-electronics up to nanobiotechnology are increasingly dependent on the level of technology. Applied research on nanomaterials plays a key role in the development of nanotechnologies. The nanostructured silicon is one of the materials attracting the special attention of researchers in various applied areas. A new and widely discussed application of nanostructured silicon is a possibility of their usage in the process of efficient hydrogen generation. The present paper is devoted to a brief review of recent advances in the study of the applicability of porous silicon nanostructures for hydrogen generation. The main possible mechanisms of the photocatalytic activity of silicon nanostructures, as well as the influence of such parameters as their shape, size and degree of surface development on the hydrogen generation efficiency of the material are discussed. In addition, based on literature overview, an analysis regarding the most likely paths for the development of this area of semiconductor materials science and an assessment of the feasibility of using silicon nanostructures for hydrogen generation has been made.
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