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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">mateltech</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Материалы электронной техники</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1609-3577</issn><issn pub-type="epub">2413-6387</issn><publisher><publisher-name>MISIS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/1609-3577-2020-1-78-85</article-id><article-id custom-type="elpub" pub-id-type="custom">mateltech-371</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>Физические свойства и методы исследования</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICAL CHARACTERISTICS AND THEIR STUDY</subject></subj-group></article-categories><title-group><article-title>ИК-люминесценция CaGa2O4:Yb3+ при возбуждении излучением с длиной волны 940 и 980 нм</article-title><trans-title-group xml:lang="en"><trans-title>IR luminescence of CaGa2O4 : Yb3+ when excited  by radiation with a wavelength of 940 and 980 nm</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4261-4054</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Марьина</surname><given-names>У. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mar’ina</surname><given-names>U. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Пушкина, д. 1, Ставрополь, 355017</p></bio><bio xml:lang="en"><p>1 Pushkin Str., Stavropol 355017</p><p>Ul’ana A. Mar’ina: Cand. Sci. (Eng.), Associate Professor, Department of Electronics and Nanotechnology, Institute of Engineering</p></bio><email xlink:type="simple">ulyana-ne@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воробьев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Vorob’ev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Пушкина, д. 1, Ставрополь, 355017</p></bio><bio xml:lang="en"><p>1 Pushkin Str., Stavropol 355017</p><p>Viktor A. Vorob’ev: Dr. Sci (Eng.), Professor, Senior Researcher, Department of Electronics and Nanotechnology, Institute of Engineering</p></bio><email xlink:type="simple">lum@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6586-449X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Марьин</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Mar’in</surname><given-names>A. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Пушкина, д. 1, Ставрополь, 355017</p></bio><bio xml:lang="en"><p>1 Pushkin Str., Stavropol 355017</p><p>Alexandr P. Mar’in: Postgraduate Student, Department of Electronics and Nanotechnology, Institute of Engineering</p></bio><email xlink:type="simple">kosmostech@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Северо-Кавказский федеральный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>North-Caucasus Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>18</day><month>05</month><year>2020</year></pub-date><volume>23</volume><issue>1</issue><fpage>78</fpage><lpage>85</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Марьина У.А., Воробьев В.А., Марьин А.П., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Марьина У.А., Воробьев В.А., Марьин А.П.</copyright-holder><copyright-holder xml:lang="en">Mar’ina U.A., Vorob’ev V.A., Mar’in A.P.</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://met.misis.ru/jour/article/view/371">https://met.misis.ru/jour/article/view/371</self-uri><abstract><p>Представлен обзор известных люминесцентных материалов на основе галлата кальция CaGa2O4, излучающих в видимой и инфракрасной (ИК) области спектра. На сегодняшний день ИК-люминофоры исследованы мало, но их практическое применение представляет интерес. Твердофазным методом получены образцы CaGa2O4, активированные редкоземельными ионами Yb3+. Исследованы структурные и люминесцентные свойства состава CaGa2O4 : Yb3+. При возбуждении CaGa2O4 : Yb3+ излучением с длиной волны 940 и 980 нм зарегистрирована люминесценция в диапазоне 980—1100 нм. На основании данных о строении электронных уровней в ионах Yb3+ сделан вывод о том, что возбуждение и излучение происходят непосредственно в ионах Yb3+ при пассивном участии решетки основания. В спектрах люминесценции имеется три максимума на длинах волн 993, 1025 и 1080 нм. Излучение в этих полосах обусловлено оптическими переходами электронов из возбужденного в основное состояние в ионах Yb3+. Изучена зависимость интенсивности люминесценции в полосе 993 нм от концентрации ионов активатора Yb3+. Установлено, что введение в состав люминофора ионов Na+ повышает интенсивность ИК-люминесценции. Предложен оптимальный состав люминофора (Ca1-x-yYbxNay)Ga2O4, при котором интенсивность люминесценции в полосе 993 нм максимальна.</p></abstract><trans-abstract xml:lang="en"><p>The article provides an overview of known luminescent materials based on calcium gallate CaGa2O4, emitting in the visible and infrared (IR) spectral regions. IR phosphors have not been studied much, but their practical application is of interest. The solid-phase method was used to obtain CaGa2O4 samples activated with rare-earth ions Yb3+. The structural and luminescent properties of the composition CaGa2O4 : Yb3+ were studied. When CaGa2O4 : Yb3+ was excited by radiation with a wavelength of 940 and 980 nm, luminescence was recorded in the range of 980—1100 nm. Based on data on the structure of electronic levels in Yb3+ ions, it is concluded that excitation and radiation occur directly in Yb3+ ions with the passive participation of the base lattice. Three maximums at a wavelength were recorded on the luminescence spectra: 993 nm, 1025 nm, 1080 nm. The radiation in these bands is due to optical transitions of electrons from the excited to the ground state in Yb3+ ions. The dependence of the luminescence intensity in the 993 nm band on the concentration of Yb3+ activator ions was studied. It found that the introduction of the phosphor ions Na+ increases the intensity of the infrared luminescence. An optimal composition of the phosphor (Ca1-x-yYbxNay)Ga2O4 is proposed, at which the luminescence intensity in the range of 980—1100 nm is maximum.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>люминофоры</kwd><kwd>галлаты</kwd><kwd>CaGa2O4</kwd><kwd>редкоземельные элементы</kwd><kwd>Yb3+</kwd></kwd-group><kwd-group xml:lang="en"><kwd>phosphors</kwd><kwd>gallates</kwd><kwd>CaGa2O4</kwd><kwd>rare-earth elements</kwd><kwd>Yb3+</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">ООО НПФ "ЛЮМ"</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Bletskan D. I., Kabatsii V. M., Kranichets M., Frolova V. V., Gule E. G. Photoconductivity and photoluminescence of PbGa2Se4 crystals // Chalcogenide Letters. 2006. V. 3, N 12. P. 125—132. URL: http://www.chalcogen.ro/Bletskan-articol.pdf</mixed-citation><mixed-citation xml:lang="en">Bletskan D. 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