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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8323-2026-70-3-249-257</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-1316</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ТЕХНИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TECHNICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Подзонное поглощение и структурные свойства кремния, гипердопированного селеном, после импульсного лазерного отжига</article-title><trans-title-group xml:lang="en"><trans-title>Sub-bandgap absorption and structural properties of selenium-hyperdoped silicon after pulsed laser annealing</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковальчук</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovalchuk</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ковальчук Наталья Станиславовна – канд. техн. наук, заместитель главного инженера</p><p>ул. Казинца, 121А, 220108, Минск</p></bio><bio xml:lang="en"><p>Kovalchuk Natalia S. – Ph. D. (Engineering), Deputy Chief Engineer</p><p>121A, Kazinets Str., 220108, Minsk</p></bio><email xlink:type="simple">nkovalchuk@integral.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8292-8942</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Комаров</surname><given-names>Ф. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Komarov</surname><given-names>F. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Комаров Фадей Фадеевич – академик, д-р физ.-мат. наук, профессор, заведующий лабораторией</p><p>ул. Курчатова, 7, 220045, Минск</p></bio><bio xml:lang="en"><p>Komarov Fadei F. – Academician, D. Sc. (Physics and Ma thematics), Professor, Head of the Laboratory</p><p>7, Kurchatov Str., 220045, Minsk</p></bio><email xlink:type="simple">komarovf@bsu.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0982-3938</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пархоменко</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Parkhomenko</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пархоменко Ирина Николаевна – канд. физ.-мат. наук, вед. науч. сотрудник</p><p>ул. Курчатова, 5, 220045, Минск</p></bio><bio xml:lang="en"><p>Parkhomenko Irina N. – Ph. D. (Physics and Mathem atics), Leading Researcher</p><p>5, Kurchatov Str., 220045, Minsk</p></bio><email xlink:type="simple">parhomir@yandex.by</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0225-2936</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ян</surname><given-names>Гофэн</given-names></name><name name-style="western" xml:lang="en"><surname>Yang</surname><given-names>Guofeng</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гофэн Ян – д-р наук, профессор</p><p>пр-т Лиху, 1800, 214122, Уси</p></bio><bio xml:lang="en"><p>Guofeng Yang – D. Sc., Professor</p><p>1800, Lihu Avenue, 214122, Wuxi</p></bio><email xlink:type="simple">gfyang@jiangnan.edu.cn</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8300-1070</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мильчанин</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Milchanin</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мильчанин Олег Владимирович – ст. науч. сотрудник</p><p>ул. Курчатова, 7, 220045, Минск</p></bio><bio xml:lang="en"><p>Milchanin Oleg V. – Senior Researcher</p><p>7, Kurchatov Str., 220045, Minsk</p></bio><email xlink:type="simple">milchanin@tut.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ОАО «Интеграл»</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Joint Stock Company “Integral”</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт прикладных физических проблем имени А. Н. Севченко  &#13;
Белорусского государственного университета</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>A. N. Sevchenko Institute of Applied Physics Problems of the Belarusian State University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Белорусский государственный университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian State University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Школа науки, Цзяннаньский университет</institution><country>Китай</country></aff><aff xml:lang="en"><institution>School of Science, Jiangnan University</institution><country>China</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>09</day><month>07</month><year>2026</year></pub-date><volume>70</volume><issue>3</issue><fpage>249</fpage><lpage>257</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ковальчук Н.С., Комаров Ф.Ф., Пархоменко И.Н., Ян Г., Мильчанин О.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Ковальчук Н.С., Комаров Ф.Ф., Пархоменко И.Н., Ян Г., Мильчанин О.В.</copyright-holder><copyright-holder xml:lang="en">Kovalchuk N.S., Komarov F.F., Parkhomenko I.N., Yang G., Milchanin O.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://doklady.belnauka.by/jour/article/view/1316">https://doklady.belnauka.by/jour/article/view/1316</self-uri><abstract><p>Исследовано формирование примесной подзоны в кремнии, гипердопированном селеном, после импульсного лазерного отжига. Образцы Si имплантировались ионами Se+ в моно- и полиэнергетических режимах с концентрацией примеси 0,4–2,2 ат. %, после чего проводились режимы импульсного лазерного отжига при плотностях энергии 0,55–2,5 Дж/см2. Глубинные профили концентрации примеси, степень кристалличности слоев и доля атомов селена в положении замещения определялись методом резерфордовского обратного рассеяния в сочетании с режимом каналирования. Методом сканирующей туннельной спектроскопии подтверждено формирование подзонных состояний. В спектрах поглощения отчетливо проявляется широкая полоса подзонного поглощения с максимумом в области ~0,45–0,55 эВ и шириной около ~0,5 эВ. Показано, что интенсивность подзонного поглощения увеличивается с ростом концентрации замещающего Se, однако эта зависимость носит нелинейный характер. Наилучшие структурные параметры слоев (максимальные значения степени кристалличности и доли атомов Se в узлах решетки) достигаются после импульсного лазерного отжига при 1,5–2,5 Дж/см2, при этом интенсивность подзонного поглощения изменяется немонотонно и не коррелирует строго со структурными характеристиками. Полученные результаты имеют практическую значимость для разработки оптоэлектронных устройств на основе гипердопированного кремния с управляемыми свойствами подзонного поглощения.</p></abstract><trans-abstract xml:lang="en"><p>The formation of impurity sub-band states in selenium-hyperdoped silicon after pulsed laser annealing was investigated. Si samples were implanted with Se+ ions in single- and multi-energy regimes with dopant concentrations of 0.4– 2.2 at. %, followed by pulsed laser annealing at energy densities of 0.55–2.5 J/cm2. Depth profiles of the dopant concentration, the degree of crystallinity, and the fraction of Se atoms occupying substitutional lattice sites were determined by Rutherford backscattering spectrometry in channeling mode. The formation of sub-band states was confirmed by scanning tunneling spectroscopy. The absorption spectra show a pronounced broad sub-band absorption band with a maximum at ~0.45–0.55 eV and a width of ~0.5 eV. It was found that the sub-band absorption intensity increases with the concentration of substitutional Se atoms, although this dependence is nonlinear. The optimal structural parameters (maximum crystallinity and substitutional Se fraction) are achieved after pulsed laser annealing at 1.5–2.5 J/cm2; however, the sub-band absorption intensity varies nonmonotonically and does not strictly correlate with these structural characteristics. These findings are relevant for the design of optoelectronic devices based on hyperdoped silicon with controllable sub-band absorption characteristics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кремний</kwd><kwd>имплантация Se</kwd><kwd>импульсный лазерный отжиг</kwd><kwd>подзона</kwd><kwd>поглощение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>silicon</kwd><kwd>Se implantation</kwd><kwd>pulsed laser annealing</kwd><kwd>sub-band states</kwd><kwd>absorption</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Белорусского республиканского фонда фундаментальных исследование (проект № Ф26КИ-011). Авторы выражают благодарность К. Жусупбекову за проведение исследований образцов методом сканирующей туннельной спектроскопии и микроскопии.</funding-statement><funding-statement xml:lang="en">The work was carried out with the financial support of the Belarusian Republican Foundation for Fundamental Research (Project No. Ф26КИ-011). 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