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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">10.26896/1028-6861-2023-89-7-25-33</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-1973</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>ИССЛЕДОВАНИЕ СТРУКТУРЫ И СВОЙСТВ. ФИЗИЧЕСКИЕ МЕТОДЫ ИССЛЕДОВАНИЯ И КОНТРОЛЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TESTING OF STRUCTURE AND PARAMETERS. PHYSICAL METHODS OF TESTING AND QUALITY CONTROL</subject></subj-group></article-categories><title-group><article-title>Влияние центров захвата, внесенных облучением протонами с энергией 1 МэВ, на время восстановления обратного тока в диодах Шоттки на основе Ga2O3</article-title><trans-title-group xml:lang="en"><trans-title>The effect of trapping sites introduced by 1 MeV proton irradiation on the reverse current recovery time in Ga2O3-based Schottky diodes</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>Щемеров</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Schemerov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иван Васильевич Щемеров</p><p>119049, Москва, Ленинский пр-т, д. 4</p></bio><bio xml:lang="en"><p>Ivan V. Schemerov</p><p>4, Leninsky prosp., Moscow, 119049</p></bio><email xlink:type="simple">schemerov.iv@misis.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>Поляков</surname><given-names>А. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Polyakov</surname><given-names>A. Ya.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Яковлевич Поляков</p><p>119049, Москва, Ленинский пр-т, д. 4</p></bio><bio xml:lang="en"><p>Alexander Ya. Polyakov</p><p>4, Leninsky prosp., Moscow, 119049</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>Лагов</surname><given-names>П. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Lagov</surname><given-names>P. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пётр Борисович Лагов</p><p>119049, Москва, Ленинский пр-т, д. 4;</p><p>119071, Москва, Ленинский пр-т, д. 31, к. 4</p></bio><bio xml:lang="en"><p>Peter B. Lagov</p><p>4, Leninsky prosp., Moscow, 119049;</p><p>31, k. 4, Leninsky prosp., Moscow, 119071</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>Кобелева</surname><given-names>С. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kobeleva</surname><given-names>S. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Светлана Петровна Кобелева</p><p>119049, Москва, Ленинский пр-т, д. 4</p></bio><bio xml:lang="en"><p>Svetlana P. Kobeleva</p><p>4, Leninsky prosp., Moscow, 119049</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>Кочкова</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kochkova</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анастасия Ильинична Кочкова</p><p>119049, Москва, Ленинский пр-т, д. 4</p></bio><bio xml:lang="en"><p>Anastasia I. Kochkova</p><p>4, Leninsky prosp., Moscow, 119049</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>Куланчиков</surname><given-names>Ю. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulanchikov</surname><given-names>Yu. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Олегович Куланчиков</p><p>119049, Москва, Ленинский пр-т, д. 4</p></bio><bio xml:lang="en"><p>Yuri O. Kulanchikov</p><p>4, Leninsky prosp., Moscow, 119049</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>Дорошкевич</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Doroshkevich</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Сергеевич Дорошкевич</p><p>141980, Московская обл., г. Дубна, ул. Жолио-Кюри, д. 13</p></bio><bio xml:lang="en"><p>Alexander S. Doroshkevich</p><p>13, ul. Jolio-Curie, Dubna, Moskovskaya obl., 141980</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>Кирилов</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kirilov</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виктор Дмитриевич Кирилов</p><p>119049, Москва, Ленинский пр-т, д. 4</p></bio><bio xml:lang="en"><p>Viktor D. Kirilov</p><p>4, Leninsky prosp., Moscow, 119049</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>НИТУ «МИСиС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National university of science and technology «MISiS»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>НИТУ «МИСиС»; Институт физической химии и электрохимии имени А. Н. Фрумкина РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National university of science and technology «MISiS»; Frumkin Institute of Physical Chemistry and Electrochemistry, RAS (IPCE RAS)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Объединённый институт ядерных исследований</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Joint Institute for Nuclear Research</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>25</day><month>07</month><year>2023</year></pub-date><volume>89</volume><issue>7</issue><fpage>25</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Щемеров И.В., Поляков А.Я., Лагов П.Б., Кобелева С.П., Кочкова А.И., Куланчиков Ю.О., Дорошкевич А.С., Кирилов В.Д., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Щемеров И.В., Поляков А.Я., Лагов П.Б., Кобелева С.П., Кочкова А.И., Куланчиков Ю.О., Дорошкевич А.С., Кирилов В.Д.</copyright-holder><copyright-holder xml:lang="en">Schemerov I.V., Polyakov A.Y., Lagov P.B., Kobeleva S.P., Kochkova A.I., Kulanchikov Y.O., Doroshkevich A.S., Kirilov V.D.</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/1973">https://www.zldm.ru/jour/article/view/1973</self-uri><abstract><p>Время восстановления обратного тока – важная характеристика диодов и транзисторов, определяющая их рабочую частоту и область применения. Дефекты в структуре полупроводника могут существенно затягивать восстановление обратного тока, уменьшая быстродействие прибора и приводя к дополнительному нагреву. В работе представлены результаты определения времени восстановления обратного тока малой величины в диодах Шоттки на основе пленок α- и β-Ga2O3. Измерения проводили путем подачи на диод импульсов тока различной полярности и снятия кривой релаксации обратного тока. Показано, что в диодах на основе β-Ga2O3 на собственной подложке характерное время обратного восстановления малых токов может достигать 20 нс и ограничено, главным образом, характерным временем спада для RC-цепочки, образуемой структурой. Облучение структуры протонами с энергией 1 МэВ приводит к появлению внутри структуры большого количества дефектов, которые могут «работать» как глубокие центры захвата носителей. В этом случае тепловой выброс носителей из таких центров может затягивать релаксацию восстановления обратного тока, замедляя процесс переключения. В образце α-Ga2O3 после облучения характерное время переключения составило 6 мкс, что вдвое превышает время, которое можно было бы ожидать исходя из параметров эквивалентной RC-цепочки. Затягивание релаксации обратного тока определяется не только временем разрядки RC-цепочки, но и большим количеством глубоких центров, которые могут быть внедрены путем облучения или возникать в процессе роста или эксплуатации устройства. Методами адмиттанс-спектроскопии и релаксационной спектроскопии глубоких уровней были получены данные о природе центров захвата, замедляющих процесс переключения диода при комнатной температуре: вероятно, это – межузельные атомы кислорода. Полученные результаты могут быть использованы при совершенствовании технологии роста кристаллов для получения диодов Шоттки с высокой граничной частотой.</p></abstract><trans-abstract xml:lang="en"><p>The reverse current recovery time is an important parameter of diodes, fast rectifiers and transistors which determined their high-frequency properties and area of application. Defects in the structure may sufficiency reduce the cutoff frequency and lead to overheating. The reverse recovery of the low currents in the α- and β-Ga2O3 Schottky diodes was measured and analyzed in this study. The reverse recovery time in the β-Ga2O3-based Schottky diode is limited mainly by the relaxation of the RC-circuit formed by the equivalent diode circuit and can be very low (20 nsec in this case). Irradiation can introduce some defects in the structure, which may act as deep levels and prolong the relaxation. We have demonstrated experimentally that increasing serial resistance of the circuit lead to an increase in the reverse recovery time. But we can point an additional part of relaxation that can be attributed to the emission from deep levels in the forbidden gap of the semiconductor. It is shown that prolongation increases with the reverse recovery time but saturates. In the α-Ga2O3-based structures the reverse recovery time measured after proton irradiation was 6 μsec, twice as high than it can be expected from RC-circuit relaxation time. These deep levels can be associated with interstitial oxygen atoms. The results obtained can be used to improve the technology of crystal growth to produce Schottky diodes with a high boundary frequency.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>время восстановления обратного тока</kwd><kwd>диод Шоттки</kwd><kwd>протонное облучение</kwd><kwd>глубокие центры</kwd></kwd-group><kwd-group xml:lang="en"><kwd>reverse recovery time</kwd><kwd>Schottky diode</kwd><kwd>proton irradiation</kwd><kwd>deep levels</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке гранта президента РФ (соглашение № 075-15-2022-581). Авторы выражают признательность коллективу ЛНФ ОИЯИ за помощь в проведении работ по облучению экспериментальных образцов: А. С. Дорошкевичу, Р. Ш. Исаеву, Ж. В. Мезенцевой.</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">Lax B., Neustadter S. 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