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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">10.17073/1609-3577-2020-3-213-221</article-id><article-id custom-type="elpub" pub-id-type="custom">mateltech-386</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>Фотолюминесценция CaGa2O4, активированного  редкоземельными  ионами  Yb3+,  Er3+</article-title><trans-title-group xml:lang="en"><trans-title>Kinetics of luminescence calcium gallate activated by Yb3+, Er3+ ions</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6586-449X</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><p>Марьин Александр Петрович — аспирант, кафедра электроники и нанотехнологий, Инженерный институт</p></bio><bio xml:lang="en"><p>1 Pushkin Str., Stavropol 355017</p><p>Alexandr P. Mar′in: Postgraduate Student</p></bio><email xlink:type="simple">kosmostech@yandex.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/0000-0003-4261-4054</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><p>Марьина Ульяна Андреевна — канд. техн. наук, доцент, кафедра электроники и нанотехнологий, Инженерный институт</p></bio><bio xml:lang="en"><p>1 Pushkin Str., Stavropol 355017</p><p>Ul′ana A. Mar′ina: Cand. Sci. (Eng.), Assistant Professor</p><p> </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><p>Воробьев Виктор Андреевич — доктор техн. наук, профессор, старший научный сотрудник, кафедра электроники и нанотехнологий, Инженерный институт</p></bio><bio xml:lang="en"><p>1 Pushkin Str., Stavropol 355017</p><p>Viktor A. Vorob′ev: Dr. Sci. (Eng.), Professor, Senior Researcher</p></bio><email xlink:type="simple">lum@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>Пигулев</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pigulev</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Пушкина, д. 1, Ставрополь, 355017</p><p>Пигулев Роман Витальевич — канд. техн. наук, доцент, и.о. заведующего кафедрой электроники и нанотехнологий, Инженерный институт</p></bio><bio xml:lang="en"><p>1 Pushkin Str., Stavropol 355017</p><p>Roman V. Pigulev: Cand. Sci. (Eng.), Assistant Professor, Acting Head of the Department</p></bio><email xlink:type="simple">pigulev_r.v@mail.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>21</day><month>10</month><year>2020</year></pub-date><volume>23</volume><issue>3</issue><fpage>213</fpage><lpage>221</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Марьин А.П., Марьина У.А., Воробьев В.А., Пигулев Р.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Марьин А.П., Марьина У.А., Воробьев В.А., Пигулев Р.В.</copyright-holder><copyright-holder xml:lang="en">Mar`in A.P., Mar`ina U.A., Vorob`ev V.A., Pigulev R.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://met.misis.ru/jour/article/view/386">https://met.misis.ru/jour/article/view/386</self-uri><abstract><p>В работе представлены результаты исследования люминесцентных свойств галлата кальция, активированного трехвалентными редкоземельными ионами Yb3+ и Er3+. Изучены спектры ИК-люминесценции образцов с одним активатором Ca1‑хYbxGa2O4,Ca1‑хErxGa2O4 при возбуждении источниками излучения с длиной волны 940 и 790 нм соответственно. Получена зависимость интенсивности люминесценции образцов от концентрации редкоземельных ионов. При возбуждении двухактиваторного состава Ca1‑х‑yYbxEryGa2O4 полупроводниковым лазерным диодом с длиной волны 940 нм зарегистрирована ИК-люминесценция в областях 980-1100 нм и 1450-1670 нм. Излучение в этих полосах соответствует электронным переходам в ионах Yb3+ и Er3+ соответственно. Для полосы люминесценции с максимумом на длине волны 1538 нм измерены спектры возбуждения, максимум интенсивности приходится на длины волн: 930, 941, 970, 980 нм. Исследована зависимость интенсивности ИК-люминесценции твердого раствора Ca1‑х‑yYbxEryGa2O4  от концентрации ионов Er3+. С увеличением концентрации ионов Er3+  в спектрах люминесценции наблюдается перераспределение в интенсивностях  полос, принадлежащих ионам  Yb3+ и Er3+,  что указывает наналичии процессов переноса энергии между этими ионами. Исследована кинетика затухания ИК-люминесценции для серий  с одним и двумя активаторами: Ca1‑хYbxGa2O4,Ca1‑хErxGa2O4, Ca1‑х‑yYbxEryGa2O4. Установлено, что затухание люминесценции происходит преимущественно по экспоненциальному закону, что указывает на преобладание внутрицентрового механизма люминесценции в исследуемых структурах. На основании анализа спектров возбуждения и спектров люминесценции экспериментальных образцов сделаны выводы о взаимодействии ионов активаторов Yb3+ и Er3+ в кристаллической решетке галлата кальция.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents the results of a study of the luminescent properties of calcium gallate activated by trivalent rare earth ions Yb3+ and Er3+. IR luminescence spectra of samples with a single activator Ca1‑хYbxGa2O4,Ca1‑хErxGa2O4 were studied when excited by radiation sources with a wavelength of 940 and 790 nm, respectively. The dependence of the luminescence intensity of samples on the concentration of rare earth ions is obtained. When the two-activator composition of Ca1‑х‑yYbxEryGa2O4 is excited by a semiconductor laser diode with a wavelength of 940 nm, IR luminescence is registered in the regions of 980-1100 nm and 1450-1670 nm. The radiation in these bands corresponds to electronic transitions in Yb3+ and Er3+ ions, respectively. For a luminescence band with a maximum at a wavelength of 1540 nm, the excitation spectra were measured, the maximum intensity is at the wavelengths: 930, 941, 970, 980 nm. The dependence of the IR luminescence intensity of a solid solution of Ca1‑х‑yYbxEryGa2O4 on the concentration of Er3+ ions was studied. With an increase in the concentration of Er3+ ions in the luminescence spectra, there is a redistribution in the intensity of the bands belonging to Yb3+ and Er3+ ions, which indicates the presence of energy transfer processes between these ions. The kinetics of IR luminescence attenuation was studied for series with one and two activators: Ca1‑хYbxGa2O4,Ca1‑хErxGa2O4, Ca1‑х‑yYbxEryGa2O4. It is established that the luminescence attenuation occurs mainly according to the exponential law, which indicates the predominance of the intracenter luminescence mechanism in the studied structures. Based on the analysis of the excitation and luminescence spectra of experimental samples, conclusions are made about the interaction of Yb3+ and Er3+ activator ions in the crystal lattice of calcium gallate.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>инфракрасные (ИК) люминофоры</kwd><kwd>люминесценция</kwd><kwd>твердофазный синтез</kwd><kwd>редкоземельные элементы</kwd><kwd>галлат кальция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>infrared (IR) phosphors</kwd><kwd>luminescence</kwd><kwd>solid phase synthesis</kwd><kwd>rare earths</kwd><kwd>calcium gallate</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">Rai M., Singh S. K., Mishra K., Shankar R., Srivastava R. K., Rai S. B. 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