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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">Photonics Russia</journal-id><journal-title-group><journal-title xml:lang="en">Photonics Russia</journal-title><trans-title-group xml:lang="ru"><trans-title>Фотоника</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1993-7296</issn><issn publication-format="electronic">2686-844X</issn><publisher><publisher-name xml:lang="en">Technosphera JSC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">642535</article-id><article-id pub-id-type="doi">10.22184/1993-7296.FROS.2024.18.7.536.538</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Materials and Coatings</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Материалы и покрытия</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">Study of the absorption spectrum of surface-modified silicon within the wavelength range from 2.5 to 25 μm</article-title><trans-title-group xml:lang="ru"><trans-title>Исследование спектра поглощения поверхностно-модифицированного кремния в диапазоне длин волн от 2,5 до 25 мкм</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0887-9406</contrib-id><name-alternatives><name xml:lang="en"><surname>Gorelov</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Горелов</surname><given-names>Д. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>journal@electronics.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-9093-3018</contrib-id><name-alternatives><name xml:lang="en"><surname>Somov</surname><given-names>N. M.</given-names></name><name xml:lang="ru"><surname>Сомов</surname><given-names>Н. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>journal@electronics.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-4500-1022</contrib-id><name-alternatives><name xml:lang="en"><surname>Potapenko</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Потапенко</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>journal@electronics.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9518-1208</contrib-id><name-alternatives><name xml:lang="en"><surname>Novikov</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Новиков</surname><given-names>Д. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>journal@electronics.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4204-2626</contrib-id><name-alternatives><name xml:lang="en"><surname>Amelichev</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Амеличев</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>journal@electronics.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Research Institution Scientific-Manufacturing Complex “Technological Center”</institution></aff><aff><institution xml:lang="ru">ФГБНУ НПК «Технологический центр»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">National Research University of Electronic Technology “MIET”</institution></aff><aff><institution xml:lang="ru">Национальный исследовательский университет «МИЭТ»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-12-17" publication-format="electronic"><day>17</day><month>12</month><year>2024</year></pub-date><volume>18</volume><issue>7</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>536</fpage><lpage>538</lpage><history><date date-type="received" iso-8601-date="2024-12-03"><day>03</day><month>12</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-12-03"><day>03</day><month>12</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Gorelov D.V., Somov N.M., Potapenko I.V., Novikov D.V., Amelichev V.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Горелов Д.В., Сомов Н.М., Потапенко И.В., Новиков Д.В., Амеличев В.В.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Gorelov D.V., Somov N.M., Potapenko I.V., Novikov D.V., Amelichev V.V.</copyright-holder><copyright-holder xml:lang="ru">Горелов Д.В., Сомов Н.М., Потапенко И.В., Новиков Д.В., Амеличев В.В.</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/1993-7296/article/view/642535">https://journals.eco-vector.com/1993-7296/article/view/642535</self-uri><abstract xml:lang="en"><p>The optimization results of the generation technology for the modified absorption silicon surfaces are provided that allows to improve the spectral characteristics of devices obtained on its basis: radiation cooling devices, IR sources and sensors.</p></abstract><trans-abstract xml:lang="ru"><p>Представлены результаты отработки технологии формирования модифицированных поглощающих поверхностей кремния, позволяющей улучшить спектральные характеристики приборов, создаваемых на его основе: устройств радиационного охлаждения, источников и датчиков ИК-излучения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>silicon surface modification</kwd><kwd>plasma-chemical etching</kwd><kwd>optical absorption</kwd><kwd>IR range</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>модификация поверхности кремния</kwd><kwd>плазмохимическое травление</kwd><kwd>оптическое поглощение</kwd><kwd>ИК-диапазон</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This article was prepared with the financial support of the Ministry of Education and Science of the Russian Federation as a part of the implementation of research project FNRM-2022-0009.</funding-statement><funding-statement xml:lang="ru">Статья подготовлена при финансовой поддержке Министерства образования и науки Российской Федерации в рамках выполнения НИР FNRM-2022-0009.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Nguyen V. 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