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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">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2023-14-5-584-589</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-296</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 MATERIALS SCIENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И НАУКА О МАТЕРИАЛАХ</subject></subj-group></article-categories><title-group><article-title>Planar perovskite solar cells with La2NiMnO6 buffer layer</article-title><trans-title-group xml:lang="ru"><trans-title>Планарные перовскитные солнечные элементы с буферным слоем на основе La2NiMnO6</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8660-5646</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлов</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="en"><p>Sergey S. Kozlov</p><p>Kosygin St., 4, Moscow, 119334</p></bio><email xlink:type="simple">sergeykozlov1@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7430-4133</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никольская</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolskaia</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="en"><p>Anna B. Nikolskaia</p><p>Kosygin St., 4, Moscow, 119334</p></bio><email xlink:type="simple">anickolskaya@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/0000-0002-6702-5195</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карягина</surname><given-names>О. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Karyagina</surname><given-names>O. K.</given-names></name></name-alternatives><bio xml:lang="en"><p>Olga K. Karyagina</p><p>Kosygin St., 4, Moscow, 119334</p></bio><email xlink:type="simple">olgakar07@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/0000-0001-8090-2052</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Косарева</surname><given-names>Е. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kosareva</surname><given-names>E. K.</given-names></name></name-alternatives><bio xml:lang="en"><p>Ekaterina K. Kosareva</p><p>Kosygin St., 4, Moscow, 119991</p></bio><email xlink:type="simple">catherine.kos@yandex.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/0000-0001-8982-3959</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексеева</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Alexeeva</surname><given-names>O V.</given-names></name></name-alternatives><bio xml:lang="en"><p>Olga V. Alexeeva</p><p>Kosygin St., 4, Moscow, 119334</p></bio><email xlink:type="simple">alexol@yandex.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/0009-0001-6357-2052</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петрова</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrova</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="en"><p>Vasilisa I. Petrova</p><p>Kosygin St., 4, Moscow, 119334</p></bio><email xlink:type="simple">balagur.sh@yandex.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/0000-0002-6132-4178</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Альмяшева</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Almjasheva</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="en"><p>Oksana V. Almjasheva</p><p>Professora Popova St., 5, St. Petersburg, 197376</p><p>Politekhnicheskaya St., 26, St. Petersburg, 194021</p></bio><email xlink:type="simple">almjasheva@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8593-3023</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шевалеевский</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Shevaleevskiy</surname><given-names>O. I.</given-names></name></name-alternatives><bio xml:lang="en"><p>Oleg I. Shevaleevskiy</p><p>Kosygin St., 4, Moscow, 119334</p></bio><email xlink:type="simple">shevale2006@yahoo.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Emanuel Institute of Biochemical Physics, Russian Academy of Sciences</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-2"><institution>N. N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Science</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-3"><institution>St. Petersburg State Electrotechnical University “LETI”; Ioffe Physical-Technical Institute, Russian Academy of Sciences</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>08</day><month>06</month><year>2025</year></pub-date><volume>14</volume><issue>5</issue><fpage>584</fpage><lpage>589</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Kozlov S.S., Nikolskaia A.B., Karyagina O.K., Kosareva E.K., Alexeeva O.V., Petrova V.I., Almjasheva O.V., Shevaleevskiy O.I., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Козлов С.С., Никольская А.Б., Карягина О.К., Косарева Е.К., Алексеева О.В., Петрова В.И., Альмяшева О.И., Шевалеевский О.И.</copyright-holder><copyright-holder xml:lang="en">Kozlov S.S., Nikolskaia A.B., Karyagina O.K., Kosareva E.K., Alexeeva O.V., Petrova V.I., Almjasheva O.V., Shevaleevskiy O.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://nanojournal.ifmo.ru/jour/article/view/296">https://nanojournal.ifmo.ru/jour/article/view/296</self-uri><abstract><p>Thin films of La2NiMnO6 (LNMO) double perovskite oxide were first used as buffer layers in planar perovskite solar cells (PSCs) with the architecture of glass/FTO/LNMO/CH3NH3PbI3/Spiro-MeOTAD/Au. All PSCs were fabricated under ambient conditions and their photovoltaic parameters were measured under standard illumination (AM1.5G, 1000 W/m2). Power conversion efficiency (PCE) values (10 – 11 %) for the PSCs developed were comparable with those obtained for conventional PSCs with compact TiO2 (cTiO2) layer, but the stability of PSCs with LNMO buffer layer was significantly higher than for cTiO2-based PSCs.</p></abstract><trans-abstract xml:lang="ru"><p>Тонкие пленки двойных перовскитов вида La2NiMnO6 (LNMO) впервые были использованы в качестве буферного слоя в планарных перовскитных солнечных элементах (ПСЭ) со структурой стекло/FTO/LNMO/CH3NH3PbI3/Spiro-MeOTAD/Au. Все образцы ПСЭ были сконструированы на открытом воздухе, и их фотовольтаические параметры были измерены при стандартном освещении (АМ1.5G, 1000 Вт/м2). Полученные значения эффективностей оказались сопоставимы с эффективностями для ПСЭ на основе традиционно используемых блокирующих слоев TiO2, однако стабильность при этом оказалась существенно выше.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>наноструктуры</kwd><kwd>двойные оксиды</kwd><kwd>перовскитные солнечные элементы</kwd><kwd>солнечная фотовольтаика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nanostructures</kwd><kwd>double perovskite oxides</kwd><kwd>perovskite solar cells</kwd><kwd>solar photovoltaics</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was supported by the Russian Science Foundation under grant No. 20-69-47124.</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">Kumar N.S., Naidu K.C.B. A review on perovskite solar cells (PSCs), materials and applications. J. 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