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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">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2022-88-8-5-9</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-1717</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>АНАЛИЗ ВЕЩЕСТВА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SUBSTANCES ANALYSIS</subject></subj-group></article-categories><title-group><article-title>Определение модифицирующей добавки кремния в полупроводниковых газовых сенсорах на основе β-Ga2O3 методом рентгенофлуоресцентного анализа с полным внешним отражением</article-title><trans-title-group xml:lang="en"><trans-title>Quantification of Si dopant in β-Ga2O3-based semiconductor gas sensors by total reflection X-ray fluorescence spectroscopy (TXRF)</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>Филатова</surname><given-names>Д. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Filatova</surname><given-names>D. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дарья Геннадьевна Филатова</p><p>119991, Москва, Ленинские горы, д. 1, стр. 3;</p><p>119334, Москва, Ленинский пр-т, д. 49</p></bio><bio xml:lang="en"><p>Daria G. Filatova</p><p>1-3, Leninskiye Gory, Moscow, 119991;</p><p>49, Leninsky prosp., Moscow, 119334</p></bio><email xlink:type="simple">gak1.analyt@gmail.com</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>Богданова</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogdanova</surname><given-names>A. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александра Павловна Богданова</p><p>119991, Москва, Ленинские горы, д. 1, стр. 3</p></bio><bio xml:lang="en"><p>Alexandra P. Bogdanova</p><p>1-3, Leninskiye Gory, Moscow, 119991</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кривецкий</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Krivetskiy</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валерий Владимирович Кривецкий</p><p>119991, Москва, Ленинские горы, д. 1, стр. 3</p></bio><bio xml:lang="en"><p>Valeriy V. Krivetskiy</p><p>1-3, Leninskiye Gory, Moscow, 119991</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пенкина</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Penkina</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Татьяна Николаевна Пенкина</p><p>119334, Москва, Ленинский пр-т, д. 49</p></bio><bio xml:lang="en"><p>Tatiana N. Penkina</p><p>49, Leninsky prosp., Moscow, 119334</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Румянцева</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Rumyantseva</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марина Николаевна Румянцева</p><p>119991, Москва, Ленинские горы, д. 1, стр. 3</p></bio><bio xml:lang="en"><p>Marina N. Rumyantseva</p><p>1-3, Leninskiye Gory, Moscow, 119991</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова; Институт металлургии и материаловедения имени А. А. Байкова Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University; Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт металлургии и материаловедения имени А. А. Байкова Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>21</day><month>08</month><year>2022</year></pub-date><volume>88</volume><issue>8</issue><fpage>5</fpage><lpage>9</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Филатова Д.Г., Богданова А.П., Кривецкий В.В., Пенкина Т.Н., Румянцева М.Н., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Филатова Д.Г., Богданова А.П., Кривецкий В.В., Пенкина Т.Н., Румянцева М.Н.</copyright-holder><copyright-holder xml:lang="en">Filatova D.G., Bogdanova A.P., Krivetskiy V.V., Penkina T.N., Rumyantseva M.N.</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://www.zldm.ru/jour/article/view/1717">https://www.zldm.ru/jour/article/view/1717</self-uri><abstract><p>Создание химических сенсоров актуально для решения экологических задач контроля атмосферы городов и промышленных зон. Перспективным типом химических газовых сенсоров являются полупроводниковые сенсоры на основе оксидов металлов за счет их высокой чувствительности, низкой стоимости, миниатюрности и малого энергопотребления. Первые попытки опытной эксплуатации систем контроля атмосферного воздуха на основе подобных сенсоров показали недостаточную стабильность их отклика. Легирование данного материала кремнием может позволить решить проблему. При этом данные о количестве добавки и ее распределении в материале необходимы для установления связи «условия синтеза — состав — свойства». Мы предлагаем подход к установлению состава новых полупроводниковых материалов на основе β-Ga2O3 с содержанием добавки кремния от 0,5 до 2 % ат. Подход включает измельчение образцов с помощью планетарной мельницы и приготовление суспензий в этиленгликоле с последующим определением аналитов методом РФА ПВО на сапфировых подложках методом абсолютных содержаний (Si) c Sr 0,08 и методом внешнего стандарта (Ga) c Sr 0,04. Рентгенофлуоресцентный анализ образцов проводили с использованием спектрометра S2 PICOFOX (Bruker Nano GmbH, Германия). Для возбуждения рентгеновской флуоресценции использовали излучение MoKα. Время набора спектра — 250 с. Показано, что с помощью анализа суспензий можно оценить однородность распределения добавки в материале. Исследуемые материалы демонстрируют невоспроизводимый сенсорный отклик, что мы связали с установленной неоднородностью распределения кремния по поверхности β-Ga2O3.</p></abstract><trans-abstract xml:lang="en"><p>Developing of chemical sensors is relevant for solving environmental problems of monitoring the atmosphere of cities and industrial zones. Semiconductor sensors based on metal oxides are a promising type of chemical gas sensors due to their high sensitivity, low cost, small size, and low energy consumption. First attempts of pilot operation of atmospheric air monitoring systems based on such sensors revealed an insufficient stability of their response. Doping silicon in the basic material can solve the problem. At the same time, data on the amount and distribution of the dopant in the material are necessary to determine the relationship «synthesis conditions – composition – properties». We propose an approach to the determination of the composition of novel semiconductor materials based on β-Ga2O3 with a silicon dopant content from 0.5 to 2 %at. The approach included grinding of samples using a planetary mill and preparation of suspensions in ethylene glycol, followed by TXRF determination of the analytes on sapphire substrates using the method of absolute contents (Si) with Sr 0.08 and the method of external standard (Ga) with Sr 0.04. X-ray fluorescence analysis of the samples was performed on a S2 PICOFOX spectrometer (Bruker Nano GmbH, Germany). MoKα radiation was used to excite X-ray fluorescence. The spectrum acquisition time is 250 sec. It is shown that the homogeneity of the dopant distribution in the material can be estimated using the suspension analysis. The studied materials demonstrate an irreproducible sensory response which we associated with the revealed inhomogeneity of the silicon distribution over the surface of β-Ga2O3.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>рентгеновская флуоресценция с полным внешним отражением</kwd><kwd>определение кремния методом РФА ПВО</kwd><kwd>β-Ga2O3</kwd></kwd-group><kwd-group xml:lang="en"><kwd>total reflection X-ray fluorescence spectroscopy (TXRF)</kwd><kwd>silicon determination by TXRF</kwd><kwd>β-Ga2O3</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Использование РФА ПВО спектрометра S2 PICOFOX поддержано программой развития Московского государственного университета имени М. В. 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