<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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-2037</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>Структурные, фотолюминесцентные и термолюминесцентные свойства активированных ионами Dy3+ люминофоров Ca3Al2O6</article-title><trans-title-group xml:lang="en"><trans-title>Structural, Photoluminescence, and Thermoluminescence Studies on Dy3+-Activated Ca3Al2O6 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>Rao</surname><given-names>K. K.</given-names></name><name name-style="western" xml:lang="en"><surname>Rao</surname><given-names>K. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мачилипатнам</p></bio><bio xml:lang="en"><p>Machilipatnam</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Rao</surname><given-names>M. C.</given-names></name><name name-style="western" xml:lang="en"><surname>Rao</surname><given-names>M. C.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мачилипатнам</p><p>Виджаявада</p></bio><bio xml:lang="en"><p>Machilipatnam</p><p>Vijayawada</p></bio><email xlink:type="simple">raomc72@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Dubey</surname><given-names>V.</given-names></name><name name-style="western" xml:lang="en"><surname>Dubey</surname><given-names>V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шиллонг, Мегхалая</p></bio><bio xml:lang="en"><p>Shillong, Meghalaya</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет Кришны</institution></aff><aff xml:lang="en"><institution>Department of Physics, Krishna University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Университет Кришны; Колледж Андхра Лойола</institution></aff><aff xml:lang="en"><institution>Department of Physics, Krishna University; Department of Physics, Andhra Loyola College</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Северо-Восточный университет Хилла (NEHU)</institution></aff><aff xml:lang="en"><institution>Department of Physics, North-Eastern Hill University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>26</day><month>11</month><year>2025</year></pub-date><volume>92</volume><issue>6</issue><fpage>825</fpage><lpage>825</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Rao K.K., Rao M.C., Dubey V., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Rao K.K., Rao M.C., Dubey V.</copyright-holder><copyright-holder xml:lang="en">Rao K.K., Rao M.C., Dubey 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://zhps.ejournal.by/jour/article/view/2037">https://zhps.ejournal.by/jour/article/view/2037</self-uri><abstract><p>Люминофоры Ca3Al2O6, активированные ионами Dy3+, синтезированы модифицированным методом твердотельной реакции с различными концентрациями легирующих ионов (0.5–3.0 мол.%) и охарактеризованы с помощью рентгеноструктурного анализа. Установлено, что образец является монофазным и кристаллизуется в кубической структуре. Результаты сканирующей электронной микроскопии показали нерегулярное распределение размеров зерен в диапазоне 1–10 мкм. Исследования  в ИК-области с преобразованием Фурье подтвердили образование люминофора Ca3Al2O6:Dy3+. Спектры возбуждения и испускания фотолюминесценции регистрировались для различных концентраций легирования. Показано, что люминофор Ca3Al2O6:Dy3+ излучает интенсивные полосы при 481 и 575 нм (возбуждение на 350 нм). Изучены соответствующие переходы легирующего иона и эффект концентрационного тушения. Координаты цветности CIE 1931 г. (x = 0.26 и y = 0.32) показали распределение спектральной области, рассчитанное из спектров фотолюминесценции. Кривая свечения термолюминесценции с широкими центрами пиков при температуре около 248°C аппроксимирована с помощью метода компьютерной деконволюции кривой свечения (CGCD). Обнаружено, что глубокий захват происходит в образцах, облученных УФ-излучением с высокой энергией активации. Анализ ловушек выявил образование центров люминесценции в люминофорах, легированных Dy3+.</p></abstract><trans-abstract xml:lang="en"><p>Synthesis and characterization of Dy3+-activated Ca3Al2O6 phosphor are reported. The phosphor was synthesized by a modified solid-state reaction method with variable concentrations of doping ions (0.5–3.0 mol.%). The synthesized phosphors were characterized by X-ray diffraction (XRD) analysis, and it was revealed that the sample is monophased and crystallizes in a cubic structure. Scanning electron microscopy (SEM) results exhibited an irregular grain size distribution, ranging from 1 to 10 ìm. Fourier transform infrared (FTIR) studies confirmed the formation of Ca3Al2O6:Dy3+ phosphor. Photoluminescence (PL) excitation and emission spectra were monitored for variable doping concentrations. Ca3Al2O6:Dy3+ phosphor emits intense emission bands at 481 and 575 nm (excited at 350 nm) when doped with Dy3+ in the host. The corresponding transitions of the doping ion and concentration quenching effect were studied in detail. The 1931 CIE (x, y) chromaticity coordinates (x = 0.26 and y = 0.32) showed the distribution of the spectral region calculated from PL emission spectra. The thermoluminescence (TL) glow curve showed broad peak centres at around 248oC, and it was fitted using the computerized glow curve deconvolution (CGCD) technique. It was found that the deep trapping phenomenon occurs for UV-irradiated samples where the activation energy is high. Trap analysis elucidated the formation of luminescence centres in Dy3+-doped phosphors.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Ca3Al2O6</kwd><kwd>активированный Dy3+</kwd><kwd>твердотельная реакция</kwd><kwd>рентгеновская ди фракция</kwd><kwd>сканирующая электронная микроскопия</kwd><kwd>инфракрасная Фурье-спектроскопия</kwd><kwd>фотолюминесценция</kwd><kwd>термолюминесценция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Dy3+-activated Ca3Al2O6</kwd><kwd>Solid-state reaction</kwd><kwd>X-ray diffraction</kwd><kwd>scanning electron microscopy</kwd><kwd>Fourier transform infrared</kwd><kwd>photoluminescence</kwd><kwd>thermoluminescence</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">N. Effendy, H. A. A. Sidek, H. M. Kamari, M. H. M. Zaid, J. Y. C. Liew, H. K. Lee, N. A. A. Rahman, S. A. A. Wahab, M. Z. A. Khiri, R. E. Mallawany, Optik, 184, 480–484 (2019).</mixed-citation><mixed-citation xml:lang="en">N. Effendy, H. A. A. Sidek, H. M. Kamari, M. H. M. Zaid, J. Y. C. Liew, H. K. Lee, N. A. A. Rahman, S. A. A. Wahab, M. Z. A. Khiri, R. E. Mallawany, Optik, 184, 480–484 (2019).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">K. Mondal, J. Manam, J. Lumin., 195, 259–270 (2018).</mixed-citation><mixed-citation xml:lang="en">K. Mondal, J. Manam, J. Lumin., 195, 259–270 (2018).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">L. Cheng, X. Li, L. Sun, H. Zhong, Y. Tian, J. Wan, W. Lu, Y. Zheng, T. Yu, L. H. Yu, B. Chen, Phys. B, 405, 4457–4461 (2010).</mixed-citation><mixed-citation xml:lang="en">L. Cheng, X. Li, L. Sun, H. Zhong, Y. Tian, J. Wan, W. Lu, Y. Zheng, T. Yu, L. H. Yu, B. Chen, Phys. B, 405, 4457–4461 (2010).</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">M. J. Xin, Y. C. Tao, C. Q. Qing, J. Lumin., 130, 1320–1323 (2010).</mixed-citation><mixed-citation xml:lang="en">M. J. Xin, Y. C. Tao, C. Q. Qing, J. Lumin., 130, 1320–1323 (2010).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">V. R. Bandi, Y. T. Nien, I. G. Chen, J. Appl. Phys., 108, 023111–023114 (2010).</mixed-citation><mixed-citation xml:lang="en">V. R. Bandi, Y. T. Nien, I. G. Chen, J. Appl. Phys., 108, 023111–023114 (2010).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">F. H. Attix, F. Tochilin, Radiation Dosimetry, Academic Press, New York (1969).</mixed-citation><mixed-citation xml:lang="en">F. H. Attix, F. Tochilin, Radiation Dosimetry, Academic Press, New York (1969).</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">W. L. McLaughlin, A. W. Boyd, K. H. Chadwick, J. C. Miller, A. McDonald, Dosimetry for Radiation Processing, Taylor &amp; Francis, London (1989).</mixed-citation><mixed-citation xml:lang="en">W. L. McLaughlin, A. W. Boyd, K. H. Chadwick, J. C. Miller, A. McDonald, Dosimetry for Radiation Processing, Taylor &amp; Francis, London (1989).</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">R. Y. Yang, H. L. Lai, J. Lumin., 145, 49–54 (2014).</mixed-citation><mixed-citation xml:lang="en">R. Y. Yang, H. L. Lai, J. Lumin., 145, 49–54 (2014).</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Q. Q. Zhu, L. X. Zhong, L. X. Yang, X. Xu, ECS J. Solid State Sci. Technol., 1, R119–R122 (2012).</mixed-citation><mixed-citation xml:lang="en">Q. Q. Zhu, L. X. Zhong, L. X. Yang, X. Xu, ECS J. Solid State Sci. Technol., 1, R119–R122 (2012).</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">J. S. An, J. H. Noh, I. S. Cho, H. S. Roh, J. Y. Kim, H. S. Han, K. S. Hong, J. Phys. Chem. C, 114, 10330–10335 (2010).</mixed-citation><mixed-citation xml:lang="en">J. S. An, J. H. Noh, I. S. Cho, H. S. Roh, J. Y. Kim, H. S. Han, K. S. Hong, J. Phys. Chem. C, 114, 10330–10335 (2010).</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">M. Ziyauddin, S. Tigga, N. Brahme, D. P. Bisen, Lumin., 31, 76–80 (2016).</mixed-citation><mixed-citation xml:lang="en">M. Ziyauddin, S. Tigga, N. Brahme, D. P. Bisen, Lumin., 31, 76–80 (2016).</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Q. He, R. Fu, X. Song, H. Zhu, X. Su, C. You, J. Alloys Compd., 810, 151960 (2019).</mixed-citation><mixed-citation xml:lang="en">Q. He, R. Fu, X. Song, H. Zhu, X. Su, C. You, J. Alloys Compd., 810, 151960 (2019).</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">B. G. Zhai, M. M. Chen, Y. M. Huang, RSC Adv., 12, 31757–31768 (2022).</mixed-citation><mixed-citation xml:lang="en">B. G. Zhai, M. M. Chen, Y. M. Huang, RSC Adv., 12, 31757–31768 (2022).</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">S. Y. Liu, D. Gao, L. Wang, W. B. Song, Q. M. Yu, Y. B. Wen, X. L. Zang, Russ. Phys. J., 66, 655–665 (2023).</mixed-citation><mixed-citation xml:lang="en">S. Y. Liu, D. Gao, L. Wang, W. B. Song, Q. M. Yu, Y. B. Wen, X. L. Zang, Russ. Phys. J., 66, 655–665 (2023).</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">S. Wang, Y. Wu, Y. Fan, L. Wu, J. Yu, Mater. Res. Bull., 125, 110781 (2020).</mixed-citation><mixed-citation xml:lang="en">S. Wang, Y. Wu, Y. Fan, L. Wu, J. Yu, Mater. Res. Bull., 125, 110781 (2020).</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">H. Liang, Y. Tao, Q. Su, S. Wang, J. Solid State Chem., 167, 435–440 (2002).</mixed-citation><mixed-citation xml:lang="en">H. Liang, Y. Tao, Q. Su, S. Wang, J. Solid State Chem., 167, 435–440 (2002).</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Y. Huang, K. Jang, H. S. Lee, E. Cho, J. Jeong, S. S. Yi, J. H. Jeong, J. H. Park, Phys. Proc., 2, 207–210 (2009).</mixed-citation><mixed-citation xml:lang="en">Y. Huang, K. Jang, H. S. Lee, E. Cho, J. Jeong, S. S. Yi, J. H. Jeong, J. H. Park, Phys. Proc., 2, 207–210 (2009).</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">G. R. Dillip, S. J. Dhoble, B. Deva Prasad Raju, Opt. Mater., 35, 2261–2266 (2013).</mixed-citation><mixed-citation xml:lang="en">G. R. Dillip, S. J. Dhoble, B. Deva Prasad Raju, Opt. Mater., 35, 2261–2266 (2013).</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">K. A. Denault, J. Brgoch, M. W. Gaultois, A. Mikhailovsky, R. Petry, H. Winkler, S. P. Denbaars, R. Seshadri, Chem. Mater., 26, 2275–2282 (2014).</mixed-citation><mixed-citation xml:lang="en">K. A. Denault, J. Brgoch, M. W. Gaultois, A. Mikhailovsky, R. Petry, H. Winkler, S. P. Denbaars, R. Seshadri, Chem. Mater., 26, 2275–2282 (2014).</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">S. Sharma, N. Brahme, D. P. Bisen, P. Dewangan, Opt. Express, 26, 29495–29508 (2018).</mixed-citation><mixed-citation xml:lang="en">S. Sharma, N. Brahme, D. P. Bisen, P. Dewangan, Opt. Express, 26, 29495–29508 (2018).</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">D. Verma, P. R. Patel, L. M. Verma, Mater. Sci. Poland, 37, 55–64 (2019).</mixed-citation><mixed-citation xml:lang="en">D. Verma, P. R. Patel, L. M. Verma, Mater. Sci. Poland, 37, 55–64 (2019).</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">X. Zhang, F. Meng, W. Li, S. L. Kim, Y. M. Yu, H. J. Seo, J. Alloys Compd., 578, 72–76 (2013).</mixed-citation><mixed-citation xml:lang="en">X. Zhang, F. Meng, W. Li, S. L. Kim, Y. M. Yu, H. J. Seo, J. Alloys Compd., 578, 72–76 (2013).</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">R. Reisfeld, C. K. Jørgensen, Lasers and Excited States of Rare Earths, Springer (1977).</mixed-citation><mixed-citation xml:lang="en">R. Reisfeld, C. K. Jørgensen, Lasers and Excited States of Rare Earths, Springer (1977).</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">J. Kaur, D. Chandrakar, V. Dubey, R. Shrivastava, Y. Parganiha, N. S. Suryanarayana, J. Display Technol., 12, 506–512 (2016).</mixed-citation><mixed-citation xml:lang="en">J. Kaur, D. Chandrakar, V. Dubey, R. Shrivastava, Y. Parganiha, N. S. Suryanarayana, J. Display Technol., 12, 506–512 (2016).</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">E. Pavitra, G. Seeta Rama Raju, L. Krishna Bharat, J. Y. Park, C. H. Kwak, J. W. Chung, Y. K. Han, Y. S. Huh, J. Mater. Chem. C, 6, 12746–12757 (2018).</mixed-citation><mixed-citation xml:lang="en">E. Pavitra, G. Seeta Rama Raju, L. Krishna Bharat, J. Y. Park, C. H. Kwak, J. W. Chung, Y. K. Han, Y. S. Huh, J. Mater. Chem. C, 6, 12746–12757 (2018).</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">P. Huang, C. E. Cui, S. Wang, Opt. Mater., 32, 184–189 (2009).</mixed-citation><mixed-citation xml:lang="en">P. Huang, C. E. Cui, S. Wang, Opt. Mater., 32, 184–189 (2009).</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">V. Kortov, Radiat. Meas., 42, 576–581 (2007).</mixed-citation><mixed-citation xml:lang="en">V. Kortov, Radiat. Meas., 42, 576–581 (2007).</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">A. M. Sadek, G. Kitis, J. Lumin., 183, 533–541 (2017).</mixed-citation><mixed-citation xml:lang="en">A. M. Sadek, G. Kitis, J. Lumin., 183, 533–541 (2017).</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">G. Kitis, J. M. Gomez-Ros, J. W. N. Tuyn, J. Phys. D: Appl. Phys., 31, 2636 (1998).</mixed-citation><mixed-citation xml:lang="en">G. Kitis, J. M. Gomez-Ros, J. W. N. Tuyn, J. Phys. D: Appl. Phys., 31, 2636 (1998).</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
