其他名称：
25-29-00022
项目负责人：
Stepanov Andrey
发表日期：
2025
主持机构：
Federal State Budgetary Institution of Science "Kazan Scientific Center of Russian Academy of Sciences",
国家：
俄罗斯
开始日期：
2025
结束日期：
2026
简介：
The project is aimed to solve fundamental and applied problems of submicro- and nanophysics related to the development of the scientific basis for creating functional photonic composite materials from thin nanoporous semiconductor layers highly doped with metals, as well as establishing patterns of targeted, controlled changes in the physico-chemical properties of such media depending on the methods of their formation. The specific goal, strategy and scientific novelty of the project is to develop methods for creating and studying the properties of new types of highly alloyed nanostructured materials, based on a recently developed and patented method for the formation of thin layers of nanoporous germanium by project participants (RF patents Nos. 2805380 (2023); 2817009 (2024)) using original approach in low-energy, high-dose ion implantation technology. During the project, it is planned to study in detail and apply this method of controlled super-equilibrium saturation of germanium with ions of transition and noble metals, as well as metal-containing nanoparticles (germanides) in order to form highly doped layers of nanoporous germanium. The relevance of the project is due to the fact that artificially created structures of doped nanoporous semiconductors, which have no analogues in nature, in particular, with nanoparticles of noble and transition metals, are currently being actively considered as promising innovative nanomaterials for their practical application as effective quantum -size emitting, plasmonic, photoreceiving and sensory devices. The project, in contrast to traditional chemical approaches in solutions with contaminating reagents, proposes to use an alternative clean physical method for the production in vacuum of highly doped nanoporous germanium structures of various morphologies, doped with a wide class of transition and noble metals (Cu, Ag, Ga, In, Bi). Additionally, when creating new highly doped nanoporous layers of germanium by ion implantation, various types of thermal annealing, such as pulsed ion, laser and pulsed incoherent photon effects, will be used for controlled modification of their properties. The correlation features between the structural parameters and characteristics of quantum-sized optical, plasmonic, electrophysical, luminescent, photodetecting and sensory properties of composite media will be determined, and recommendatory conditions for their production and use in practice will be developed. A detailed study within the framework of the project will make it possible to elucidate the fundamental mechanisms of the nucleation and growth of nanoporous germanium layers directly with the admixture of various transition and noble metals during ion implantation. The additional importance of the project lies in the following applied areas of photonic research: (WP1) in the creation and improvement of new types of thin-film antireflection optical coatings for solar cells, (WP2) in testing the hypothesis about the manifestation of quantum-size effects in nanoporous germanium structures and their application in emitting optical devices, and (WP3) preparation and use of metal-hyperdoped germanium nanolayers as high-temperature photodetectors for the near-IR range. The significance of the expected results lies in the demand for modern creative technologies to obtain fundamental knowledge necessary for the creation of fundamentally new materials and devices based on them for applications in the developing fields of optoelectronics, plasmonic sensors, etc.
专业领域：
材料科学
语种：
英语
