Laboratory staff work in a new and promising field: electric power engineering based on the photovoltaic conversion of solar radiation in semiconductor solar cells. The results of the scientists' work have already found application: the production technology for high-efficiency multi-junction solar cells is used in the manufacture of solar panels for space satellites, where solar panels are practically the only viable energy source.
Project title: Development of next-generation photovoltaics based on intermediate band materials
Project objective: Development of next-generation solar cells capable of providing a qualitative transition to a new level in creating high-efficiency solar cells based on materials containing trivalent and pentavalent chemical elements (III-V compounds)
Practical significance of the research
A solar tracking system has been developed for terrestrial concentrator photovoltaic systems, allowing for the minimization of platform deployment time into the operating position. Profiles for Fresnel lenses used in concentrator photovoltaic modules have been obtained, ensuring a reduction in peak power and uniform intensity distribution across the photoactive surface of the solar cell. A solar energy conversion efficiency of 32.9% has been demonstrated in modules with optical concentrators and multi-junction phototransducers.
Implementation of research results:
High-efficiency solar cells based on III-V materials can be used both for powering spacecraft and in terrestrial conditions – in modules that concentrate sunlight.
Project title: Development of next-generation photovoltaics based on intermediate band materials
Goals and Objectives
Research Areas: Nanostructured solar cells and modules based on them, characterization methods for such cells and modulesProject objective: Development of next-generation solar cells capable of providing a qualitative transition to a new level in creating high-efficiency solar cells based on materials containing trivalent and pentavalent chemical elements (III-V compounds)
Practical significance of the research
Scientific Results
Research has been conducted to improve the structure of GaInP/Ga(In)As/Ge triple-junction solar cells. Metamorphic structures have been developed and studied for use in creating a metamorphic GaInAs subcell within a multi-junction cascade solar cell. The influence of a built-in Bragg reflector on the degradation rate of solar cell characteristics has been investigated.A solar tracking system has been developed for terrestrial concentrator photovoltaic systems, allowing for the minimization of platform deployment time into the operating position. Profiles for Fresnel lenses used in concentrator photovoltaic modules have been obtained, ensuring a reduction in peak power and uniform intensity distribution across the photoactive surface of the solar cell. A solar energy conversion efficiency of 32.9% has been demonstrated in modules with optical concentrators and multi-junction phototransducers.
Implementation of research results:
High-efficiency solar cells based on III-V materials can be used both for powering spacecraft and in terrestrial conditions – in modules that concentrate sunlight.
Education and personnel retraining
During the 2017-2020 period, the laboratory organized schools for young scientists in the field of high-efficiency solar energy conversion. The school is aimed at senior students, master's students, and postgraduates in relevant fields.Cooperation
Alferov University, Laboratory of Renewable Energy Sources (Russia): joint research.Website: https://pvlab.ioffe.ru/
Contact person: Vyacheslav Andreev, Head of Laboratory
Address: 26 Politekhnicheskaya St.
Phone: +7-812-297-56-49
Email: vmandreev@mail.ioffe.ru
Contact person: Vyacheslav Andreev, Head of Laboratory
Address: 26 Politekhnicheskaya St.
Phone: +7-812-297-56-49
Email: vmandreev@mail.ioffe.ru
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