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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Engineering Research</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Engineering Research</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Инженерные исследования</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-8143</issn><issn publication-format="electronic">2312-8151</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">38549</article-id><article-id pub-id-type="doi">10.22363/2312-8143-2024-25-1-75-85</article-id><article-id pub-id-type="edn">EALRET</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Highly Efficient Photovoltaic Laser Power Converters</article-title><trans-title-group xml:lang="ru"><trans-title>Высокоэффективные фотоэлектрические преобразователи мощного лазерного излучения</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9927-3719</contrib-id><contrib-id contrib-id-type="spin">8199-5248</contrib-id><name-alternatives><name xml:lang="en"><surname>Andreev</surname><given-names>Viacheslav M.</given-names></name><name xml:lang="ru"><surname>Андреев</surname><given-names>Вячеслав Михайлович</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Technical Sciences, Corresponding Member of the Russian Academy of Sciences, Chief Researcher of Photovoltaics Laboratory</p></bio><bio xml:lang="ru"><p>доктор технических наук, член-корреспондент РАН, главный научный сотрудник лаборатории фотоэлектрических преобразователей</p></bio><email>vmandreev@mail.ioffe.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8443-4663</contrib-id><contrib-id contrib-id-type="spin">2106-9180</contrib-id><name-alternatives><name xml:lang="en"><surname>Kalyuzhnyy</surname><given-names>Nikolay A.</given-names></name><name xml:lang="ru"><surname>Калюжный</surname><given-names>Николай Александрович</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Physical and Mathematical Sciences, Head of Nanoheterostructural Emitters and photodetectors Laboratory</p></bio><bio xml:lang="ru"><p>кандидат физико-математических наук, заведующий лабораторией наногетероструктурных излучателей и фотоприемников</p></bio><email>Nickk@mail.ioffe.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4018-6631</contrib-id><name-alternatives><name xml:lang="en"><surname>Malevskaya</surname><given-names>Aleksandra V.</given-names></name><name xml:lang="ru"><surname>Малевская</surname><given-names>Александра Вячеславовна</given-names></name></name-alternatives><bio xml:lang="en"><p>researcher of Nanoheterostructural emitters and photodetectors laboratory</p></bio><bio xml:lang="ru"><p>научный сотрудник лаборатории наногетероструктурных излучателей и фотоприемников</p></bio><email>amalevskaya@mail.ioffe.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-4371-1077</contrib-id><name-alternatives><name xml:lang="en"><surname>Nakhimovitch</surname><given-names>Mariia V.</given-names></name><name xml:lang="ru"><surname>Нахимович</surname><given-names>Мария Валерьевна</given-names></name></name-alternatives><bio xml:lang="en"><p>Researcher of Photovoltaics Laboratory</p></bio><bio xml:lang="ru"><p>научный сотрудник лаборатории фотоэлектрических преобразователей</p></bio><email>NMar@mail.ioffe.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2230-7770</contrib-id><contrib-id contrib-id-type="spin">6900-3137</contrib-id><name-alternatives><name xml:lang="en"><surname>Shvarts</surname><given-names>Maxim Z.</given-names></name><name xml:lang="ru"><surname>Шварц</surname><given-names>Максим Зиновьевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Physical and Mathematical Sciences, Head of Photovoltaics Laboratory</p></bio><bio xml:lang="ru"><p>кандидат физико-математических наук, заведующий лабораторией фотоэлектрических преобразователей</p></bio><email>shvarts@scell.ioffe.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Ioffe Institute</institution></aff><aff><institution xml:lang="ru">Физико-технический институт им. А.Ф. Иоффе РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2024</year></pub-date><volume>25</volume><issue>1</issue><issue-title xml:lang="en">VOL 25, NO1 (2024)</issue-title><issue-title xml:lang="ru">ТОМ 25, №1 (2024)</issue-title><fpage>75</fpage><lpage>85</lpage><history><date date-type="received" iso-8601-date="2024-04-02"><day>02</day><month>04</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Andreev V.M., Kalyuzhnyy N.A., Malevskaya A.V., Nakhimovitch M.V., Shvarts M.Z.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Андреев В.М., Калюжный Н.А., Малевская А.В., Нахимович М.В., Шварц М.З.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Andreev V.M., Kalyuzhnyy N.A., Malevskaya A.V., Nakhimovitch M.V., Shvarts M.Z.</copyright-holder><copyright-holder xml:lang="ru">Андреев В.М., Калюжный Н.А., Малевская А.В., Нахимович М.В., Шварц М.З.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0/legalcode</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/engineering-researches/article/view/38549">https://journals.rudn.ru/engineering-researches/article/view/38549</self-uri><abstract xml:lang="en"><p style="text-align: justify;">Photovoltaic conversion of laser radiation has found wide application in fiberoptic communication lines. Energy transfer via a laser beam is also relevant for remote power supply systems on Earth and in space. These systems can be used to power unmanned aerial vehicles, to transfer laser energy between spacecraft and from space solar panels to Earth. One of the main tasks in creating such systems is to ensure high efficiency of photovoltaic converters at high power (more than 100 W/cm2) of laser radiation. The article presents the results of research and development of photovoltaic converters of highpower laser radiation based on nanoheterostructures obtained by MOCVD epitaxy. The reduction of losses was achieved by embedding the “dielectric-silver” rear combined reflector into the structure. An increase in the generated voltage was achieved by shifting the volume charge region into the wide-gap layer of the p-GaAs-n-AlxGa1-xAs heterojunction. Thanks to an additional reduction in ohmic losses, efficiency values of &gt; 60 % have been achieved at laser radiation (λ = 860 nm) powers in the range of 50-400 W/cm2.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Фотоэлектрическое преобразование лазерного излучения нашло широкое применение в волоконно-оптических линиях связи. Передача энергии по лазерному лучу также актуальна для систем дистанционного энергопитания на Земле и в космосе. Данные системы могут найти применение для подпитки беспилотных летательных аппаратов, для передачи лазерной энергии между космическими аппаратами и с космических солнечных батарей на Землю. Одной из главных задач при создании таких систем является обеспечение высокой эффективности фотоэлектрических преобразователей при повышенной мощности (более 100 Вт/см2) лазерного излучения. Представлены результаты исследований и разработок фотоэлектрических преобразователей мощного лазерного излучения на основе наногетероструктур, полученных методом МОС-гидридной эпитаксии. Повышение КПД достигнуто путем встраивания в структуру тыльного комбинированного отражателя «диэлектрик-серебро». Увеличение генерируемого напряжения достигнуто путем смещения области объемного заряда в широкозонный слой p-GaAs-n-AlxGa1-xAs гетероперехода. Благодаря дополнительному снижению омических потерь достигнуты значения КПД &gt; 60 % при мощности лазерного излучения (λ = 860 нм) в диапазоне 50-400 Вт/см2.</p></trans-abstract><kwd-group xml:lang="en"><kwd>photovoltaic converter</kwd><kwd>AlGaAs/GaAs heterostructure</kwd><kwd>laser radiation</kwd><kwd>Bragg reflector</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>фотоэлектрический преобразователь</kwd><kwd>AlGaAs/ GaAs гетероструктура</kwd><kwd>лазерное излучение</kwd><kwd>брэгговский отражатель</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Andreev VM, Grilikhes VA, Rumyantsev VD.Photovoltaic Conversion of Concentrated Sunlight (monograph). John Wiley Publ.; 1997.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Alferov ZhI, Andreev VM, Rumyantsev VD. III-V heterostructures in photovoltaics. Concentrator Photovoltaics. 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