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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">techusgu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Юго-Западного государственного университета. Серия: Техника и технологии</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Southwest State University. Series: Engineering and Technology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-1528</issn><publisher><publisher-name>Юго-Западный государственный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21869/2223-1528-2025-15-3-91-107</article-id><article-id custom-type="elpub" pub-id-type="custom">techusgu-343</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>ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICS</subject></subj-group></article-categories><title-group><article-title>Электрические свойства контактов Ni-GaAs, получаемых методом электролиза</article-title><trans-title-group xml:lang="en"><trans-title>Electrical properties of Ni-GaAs contacts obtained by electrolysis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4323-351X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Филиппов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Filippov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Владимирович Филиппов, доктор физико-математических наук, профессор, профессор кафедры</p><p>кафедра физики и биомедицинской техники; кафедра математики и физики; кафедра естественных и технических наук</p><p>398055; ул. Московская, д. 30; 398020; ул. Ленина, д. 42; 398006; ул. Краснознаменная, влд. 4; Липецк</p></bio><bio xml:lang="en"><p>Vladimir V. Filippov, Doctor of Science (Physics and Mathematics), Professor, Professor of the Department</p><p>Department of Physics and Biomedical Engineering; Department of Mathematics and Physics; Department of Natural and Technical Sciences</p><p>398055; 30 Moskovskaya Str.; 398020; 42 Lenina Str.; 398006; 4 Krasnoznamennaya Str.; Lipetsk</p></bio><email xlink:type="simple">wwfilippow@mail.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/0000-0002-9788-6500</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лузянин</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Luzyanin</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Евгеньевич Лузянин, кандидат физико-математических наук, доцент</p><p>кафедра математики и физики</p><p>398020; ул. Ленина, д. 42; Липецк</p></bio><bio xml:lang="en"><p>Sergey E. Luzyanin, Сandidate of Sciences (Physics and Mathematics), Associate Professor</p><p>Department of Mathematics and Physics</p><p>398020; 42 Lenina Str.; Lipetsk</p></bio><email xlink:type="simple">luzyanin_se@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8212-2447</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бакеев</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bakeev</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Александрович Бакеев, аспирант</p><p>кафедра математики и физики</p><p>398020; ул. Ленина, д. 42; Липецк</p></bio><bio xml:lang="en"><p>Dmitry A. Bakeev, Postgraduate Student</p><p>Department of Mathematics and Physics</p><p>398020; 42 Lenina Str.; Lipetsk</p></bio><email xlink:type="simple">bakeev.98@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-3498-1308</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Климентьев</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Klimentyev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вадим Владимирович Климентьев, преподаватель</p><p>кафедра математики и физики</p><p>398020; ул. Ленина, д. 42; Липецк</p></bio><bio xml:lang="en"><p>Vadim V. Klimentyev, Lecturer</p><p>Department of Mathematics and Physics</p><p>398020; 42 Lenina Str.; Lipetsk</p></bio><email xlink:type="simple">i@vklim.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Липецкий государственный технический университет; Липецкий государственный педагогический университет имени П.П. Семенова-Тян-Шанского;  Московский государственный университет технологий и управления имени К.Г. Разумовского (Первый казачий университет), Липецкий казачий институт технологий и управления (филиал)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lipetsk State Technical University; Lipetsk State Pedagogical University named after P.P. Semenov-Tyan-Shansky; Moscow State University of Technologies and Management named after K.G. Razumovsky (First Cossack University), Lipetsk Cossack Institute of Technology and Menedgement (branch)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Липецкий государственный педагогический университет имени П.П. Семенова-Тян-Шанского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lipetsk State Pedagogical University named after P.P. Semenov-Tyan-Shansky</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>04</day><month>12</month><year>2025</year></pub-date><volume>15</volume><issue>3</issue><fpage>91</fpage><lpage>107</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Филиппов В.В., Лузянин С.Е., Бакеев Д.А., Климентьев В.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Филиппов В.В., Лузянин С.Е., Бакеев Д.А., Климентьев В.В.</copyright-holder><copyright-holder xml:lang="en">Filippov V.V., Luzyanin S.E., Bakeev D.A., Klimentyev V.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://techusgu.elpub.ru/jour/article/view/343">https://techusgu.elpub.ru/jour/article/view/343</self-uri><abstract><sec><title>   Цель</title><p>   Цель. Контакты металл – полупроводник составляют основу современной твердотельной электроники.</p><p>   В представленной работе целью является исследование электрических свойств контактных структур Ni-GaAs, полученных электрохимическим методом.</p><p>   Основной задачей являлось изучение влияния типа примеси и степени легирования полупроводниковых кристаллов на вольт-амперные характеристики контактов металл – полупроводник.</p></sec><sec><title>   Методы</title><p>   Методы. Объектом исследования выбраны никелевые контакты к кристаллическому арсениду галлия, полученные капельным электрохимическим методом.</p><p>   Для практического изготовления контактных структур металл – полупроводник использовался раствор Уоттса в режиме малых плотностей токов. С помощью сканирующей туннельной микроскопии изучена топография поверхности образованных пленок. Электрические параметры полупроводников определены контактными методами ван дер Пау. Учет сопротивления растекания тока в области контактов учитывался посредством аналитического решения уравнения Лапласа с краевыми условиями Неймана на границах.</p></sec><sec><title>   Результаты</title><p>   Результаты. Получены и проанализированы экспериментальные ВАХ исследуемых контактов Ni-GaAs. С использованием математической модели распределения потенциала в области образцов и экспериментальных данных вычислены сопротивления контактов никель – арсенид галлия и построены их вольт-амперные характеристики. Представлены энергетические модели контактов металл – полупроводник в случае невырожденного и вырожденного GaAs, поясняющие электрические свойства полученных структур.</p></sec><sec><title>   Заключение</title><p>   Заключение. Показано, что полученные контактные структуры Ni-p-GaAs на основе невырожденных полупроводников проявляют омические свойства, а вольт-амперные характеристики контактов Ni-n-GaAs имеют нелинейную область, характерную для диодов Шотки. Полученные электрохимические контактные структуры Ni-GaAs с полупроводниками с различным типом примесей при концентрации носителей выше 1025 м-3 имеют только линейные вольт-амперные характеристики, то есть проявляются омические свойства.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>   Purpose</title><p>   Purpose. Metal-semiconductor contacts form the basis of modern solid-state electronics.</p><p>   In the presented work the aim is to study the electrical properties of Ni-GaAs contact structures obtained by electrochemical method.</p><p>   The main task was to study the influence of impurity type and doping degree of semiconductor crystals on the current-voltage characteristics of metal-semiconductor contacts.</p></sec><sec><title>   Methods</title><p>   Methods. The object of the study is nickel contacts to crystalline gallium arsenide obtained by the drop electrochemical method.</p><p>   For the practical production of metal-semiconductor contact structures, a Watts solution was used in the low-current density mode. The surface topography of the formed films was studied using scanning tunnel microscopy. The electrical parameters of the semiconductors were determined by Van der Pauw contact methods. The resistance of current spreading in the contact region was taken into account by means of an analytical solution of the Laplace equation with Neumann boundary conditions on the boundaries.</p></sec><sec><title>   Results</title><p>   Results. Experimental current-voltage characteristics of the investigated Ni-GaAs contacts are obtained and analyzed. Using a mathematical model of potential distribution in the sample area and experimental data, the resistances of nickel-gallium arsenide contacts are calculated and their volt-ampere characteristics are constructed. Energy models of metal-semiconductor contacts in the case of non-degenerate and degenerate GaAs are presented, explaining the electrical properties of the obtained structures.</p></sec><sec><title>   Conclusion</title><p>   Conclusion. It is shown that the obtained Ni-p-GaAs contact structures based on non-degenerate semiconductors exhibit ohmic properties, and the volt-ampere characteristics of the Ni-n-GaAs contacts have a nonlinear region, characteristic of Schottky diodes. The obtained electrochemical contact structures of Ni-GaAs with semiconductors of different types of impurities at a carrier concentration above 1025 m-3 have only linear volt-ampere characteristics, i. e. ohmic properties are manifested.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>никелевые контакты</kwd><kwd>контакт металл – полупроводник</kwd><kwd>вольт-амперная характеристика</kwd><kwd>вырожденный полупроводник</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nickel contacts</kwd><kwd>metal-semiconductor contact</kwd><kwd>current-voltage characteristic</kwd><kwd>degenerate semiconductor</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">Sze S.M., Li Y., Ng K.K. Physics of semiconductor devices. 4&lt;sup&gt;th&lt;/sup&gt; ed. New Jersey: Wiley, 2021. 944 р.</mixed-citation><mixed-citation xml:lang="en">Sze S. M., Li Y., Ng K. K. 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