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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">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-1534</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>АННОТАЦИИ АНГЛОЯЗЫЧНЫХ СТАТЕЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ABSTRACTS ENGLISH-LANGUAGE ARTICLES</subject></subj-group></article-categories><title-group><article-title>Люминесцентные свойства и перенос энергии от ионов Ce3+ к Yb3+  в люминофоре Sr5 (BO3)3C</article-title><trans-title-group xml:lang="en"><trans-title>Luminescence Study and Energy Transfer from Ce3+ to Yb3+  in Sr5 (BO3)3Cl  Phosphor</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>Talewar</surname><given-names>R. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Talewar</surname><given-names>R.  A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нагпур</p></bio><bio xml:lang="en"><p>Nagpur</p></bio><email xlink:type="simple">talewarrupesh@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Колледж инженерии и менеджмента Шри Рамдеобаба</institution></aff><aff xml:lang="en"><institution>Department of Physics, Shri Ramdeobaba College of Engineering &amp; Management</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>27</day><month>04</month><year>2024</year></pub-date><volume>91</volume><issue>2</issue><fpage>309</fpage><lpage>309</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Talewar R.A., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Talewar R.A.</copyright-holder><copyright-holder xml:lang="en">Talewar R.A.</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://zhps.ejournal.by/jour/article/view/1534">https://zhps.ejournal.by/jour/article/view/1534</self-uri><abstract><p>Новый люминофор Sr5(BO3)3Cl:Ce3+,Yb3+, который обеспечивает квантовую резку в ближнем инфракрасном диапазоне (NIR), получен с использованием традиционных методов твердофазных  реакций и исследован с помощью рентгеновской дифракции, спектроскопии фотолюминесценции и измерения затухания флуоресценции. При возбуждении Ce3+ УФ-светом с длиной волны 350 нм наблюдалось широкополосное излучение при 415 нм и интенсивное NIR-излучение при 982 нм. Полоса с максимумом 415 нм соответствует переходу 5d→4f ионов Ce3+, тогда как 982 нм приписывается характерному переходу 2F5/2→2F7/2 ионов Yb3+. Показано влияние концентрации Ce3+ на испускание излучения, установлены время затухания и эффективность переноса энергии (ηETE). В результате анализа спектров возбуждения и испускания фотолюминесценции и измерения времени затухания флуоресценции выявлен перенос энергии от ионов Ce3+ к ионам Yb3+ как процесс совместного переноса энергии (CET) с эффективностью 71.2% и суммарной теоретической квантовой эффективностью 171.2%.</p></abstract><trans-abstract xml:lang="en"><p>A new phosphor Sr5(BO3)3Cl:Ce3+,Yb3+, which enables near-infrared (NIR) quantum cutting, was prepared using traditional solid-state reaction methods. Its properties were examined using X-ray diffraction, photoluminescence emission, excitation spectra, and measurements of fluorescence decay. Upon excitation of Ce3+ with an ultraviolent (UV) photon at 350 nm, broadband emission at 415 nm and an intense NIR emission at 982 nm were observed. Emission at 415 nm corresponds to 5d→4f transition of Ce3+ ions, whereas the NIR emission at 982 nm is ascribed to the characteristic 2F5/2→2F7/2 transition of Yb3+ ions. Thorough investigation delved into how the concentration of Ce3+ affects visible and NIR emissions, decay lifetime, and energy transfer efficiency (ηETE). Detailed analysis of photoluminescence excitation, emission spectra, and fluorescence decay measurements revealed a proficient energy transfer from Ce3+ to Yb3+ ions. This transfer was demonstrated as a cooperative energy transfer (CET) process, showcasing a CET efficiency of 71.2% and a total theoretical quantum efficiency of 171.2%.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ближний инфракрасный диапазон</kwd><kwd>квантовая резка</kwd><kwd>перенос энергии</kwd><kwd>фотолюминесценция</kwd><kwd>хлорборат стронция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>near-infrared</kwd><kwd>quantum cutting</kwd><kwd>energy transfer</kwd><kwd>photoluminescence</kwd><kwd>strontium chloroborate</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">The author would like to thank Dr. C.P. 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