Features of synthesis and properties of new materials based on monoisotopic silicon and germanium. Review

Andrey D. Bulanov; Vladimir A. Gavva; Oleg Yu. Troshin

doi:10.17308/kcmf.2025.27/12483

Andrey D. Bulanov G. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 49 Tropinina st., Nizhny Novgorod 603951 Russian Federation https://orcid.org/0000-0001-5717-0527
Vladimir A. Gavva G. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 49 Tropinina st., Nizhny Novgorod 603951 Russian Federation https://orcid.org/0000-0003-3071-8884
Oleg Yu. Troshin G. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 49 Tropinina st., Nizhny Novgorod 603951 Russian Federation https://orcid.org/0000-0001-6996-1561

DOI: https://doi.org/10.17308/kcmf.2025.27/12483

Keywords: Silicon, Germanium, Isotopes, Hydrides, Materials

Abstract

This paper reviews scientific works on the preparation and properties of isotopically enriched silicon and germanium, along with their compounds. It covers the technological aspects and peculiarities of synthetic methods with the deep purification processes for obtaining isotopically enriched silicon and germanium compounds. The review also discusses the production of polycrystalline and single-crystal samples with varying degrees of isotopic and chemical purity. The results of a study investigating the physicochemical characteristics of both simple and complex substances derived from isotopically enriched silicon and germanium are presented. These studies indicate that the isotopic composition of silicon and germanium
significantly affects heat capacity, thermal conductivity, and light absorption processes. Finally, the paper explores current applications of substances and materials based on isotopically enriched silicon and germanium

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Author Biographies

Andrey D. Bulanov, G. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 49 Tropinina st., Nizhny Novgorod 603951 Russian Federation

Corresponding Member of the
Russian Academy of Sciences, Dr. Sci (Chem.), Chief
Researcher, Devyatykh Institute of Chemistry of High-Purity
Substances, Russian Academy of Sciences (Nizhny Novgorod,
Russian Federation)

Vladimir A. Gavva, G. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 49 Tropinina st., Nizhny Novgorod 603951 Russian Federation

Cand. Sci. (Chem.), Leading
Researcher, Devyatykh Institute of Chemistry of High-Purity
Substances, Russian Academy of Sciences (Nizhny Novgorod,
Russian Federation)

Oleg Yu. Troshin, G. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, 49 Tropinina st., Nizhny Novgorod 603951 Russian Federation

Cand. Sci. (Chem.), Senior Researcher,
Devyatykh Institute of Chemistry of High-Purity Substances,
Russian Academy of Sciences (Nizhny Novgorod, Russian
Federation)

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