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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2016-11-4-50-55</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-39</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="en"><subject>CHEMISTRY AND TECHNOLOGY OF INORGANIC MATERIALS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И ТЕХНОЛОГИЯ НЕОРГАНИЧЕСКИХ МАТЕРИАЛОВ</subject></subj-group></article-categories><title-group><article-title>STUDY OF MECHANISMS OF LIGHT ABSORPTION IN TITANIUM DIOXIDE FILMS</article-title><trans-title-group xml:lang="ru"><trans-title>ИССЛЕДОВАНИЕ МЕХАНИЗМОВ ПОГЛОЩЕНИЯ СВЕТА В ПЛЕНКАХ ДИОКСИДА ТИТАНА</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>Новопашин</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Novopashin</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>начальник лаборатории</p><p> </p></bio><bio xml:lang="en"><p>Moscow, 117342 Russia</p></bio><email xlink:type="simple">noemail@neicon.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>Скворцов</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Skvortsov</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>главный научный сотрудник</p><p> </p></bio><bio xml:lang="en"><p>Moscow, 117342 Russia</p></bio><email xlink:type="simple">lskvortsov@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>Скворцова</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Skvortsova</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>заведующий кафедрой</p><p>Москва, 119571 Россия</p></bio><bio xml:lang="en"><p>Moscow, 119571 Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>АО «НИИ «Полюс» им. М.Ф. Стельмаха»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M.F. Stelmakh Research Institute «Polus»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Московский технологический университет (Институт тонких химических технологий)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Technological University (Institute of Fine Chemical Technologies)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>28</day><month>08</month><year>2016</year></pub-date><volume>11</volume><issue>4</issue><fpage>50</fpage><lpage>55</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Novopashin V.V., Skvortsov L.A., Skvortsova M.I., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Новопашин В.В., Скворцов Л.А., Скворцова М.И.</copyright-holder><copyright-holder xml:lang="en">Novopashin V.V., Skvortsov L.A., Skvortsova M.I.</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.finechem-mirea.ru/jour/article/view/39">https://www.finechem-mirea.ru/jour/article/view/39</self-uri><abstract><p>This work is devoted to comparison of optical absorption value of titanium dioxide coatings obtained by means of reactive thermal evaporation (RTE) and its activated species (ARTE), as well as to study on the dependence of the absorption coefficient of the coatings on the process parameters. Special attention is paid to the study of the influence of the films nonstoichiometry on absorption in the visible and near-infrared ranges of the spectrum. The results allow concluding that the dominant mechanism responsible for absorption in titanium dioxide films in the near-infrared range of the spectrum is the deviation from the stoichiometric composition. This deviation is caused by the presence of defects in the coating structure such as oxygen vacancies (ions Ti3+), which are seen as electron traps. As oxygen pressure and ionic current increase, the absorption of titanium dioxide films is reduced, and films with a composition closer to stoichiometric are obtained. In turn, the absorption of titanium dioxide in the visible spectrum (at wavelengths of 532 nm and 670 nm) has less to do with defects in stoichiometry, in contrast to contaminating impurities contained in the starting material, in the vacuum chamber and in the jet gas.</p></abstract><trans-abstract xml:lang="ru"><p>Показано, что при напылении пленок диоксида титана методом реактивного термоиспарения использование ионизированного кислорода существенно влияет на величину коэффициента поглощения в них лазерного излучения, который измерялся с помощью метода фототермической радиометрии. С целью получения пленок с минимальным коэффициентом поглощения особое внимание уделяется оптимизации параметров метода. Показано, что с ростом степени ионизации кислорода наряду со снижением коэффициента поглощения происходит его стабилизация. Экспериментально установлено, что отклонение состава материала пленок от стехиометрического оказывает различное влияние на поглощение в них излучения видимого и ближнего инфракрасного диапазона спектра. Обсуждаются возможные механизмы поглощения на различных длинах волн излучения из указанного спектрального диапазона.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>диоксид титана</kwd><kwd>реактивное термоиспарение</kwd><kwd>активированное реактивное термоиспарение</kwd><kwd>электронно-лучевое испарение</kwd><kwd>поглощение</kwd><kwd>стехиометрия состава</kwd><kwd>фототермическая радиометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>titanium dioxide</kwd><kwd>reactive thermal evaporation</kwd><kwd>activated reactive thermal evaporation</kwd><kwd>electron beam evaporation</kwd><kwd>absorption</kwd><kwd>stoichiometry</kwd><kwd>photothermal radiometry</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">Maissel L.I., Glang R. Handbook of thin film technology. New York: McGraw-Hill, 1970. 800 p.</mixed-citation><mixed-citation xml:lang="en">Maissel L.I., Glang R. 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