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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">10.17586/2220-8054-2015-6-6-825-832</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-912</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>PAPERS, PRESENTED AT THE CONFERENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>PAPERS, PRESENTED AT THE CONFERENCE</subject></subj-group></article-categories><title-group><article-title>Degradation of perovskites and Dexter-Varley paradox</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Oksengendler</surname><given-names>B. L.</given-names></name></name-alternatives><bio xml:lang="en"><p>Tashkent</p></bio><email xlink:type="simple">oksengendlerbl@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Maksimov</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="en"><p>Tashkent</p></bio><email xlink:type="simple">maksimov_s@yahoo.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Marasulov</surname><given-names>M. B.</given-names></name></name-alternatives><bio xml:lang="en"><p>Tashkent</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Scientific Center of Chemistry and Physics of Polymers at National University of Uzbekistan ; Institute of Ion-Plasma and Laser Technologies, Uzbek Academy of Sciences</institution><country>Uzbekistan</country></aff><aff xml:lang="en" id="aff-2"><institution>Institute of Ion-Plasma and Laser Technologies, Uzbek Academy of Sciences</institution><country>Uzbekistan</country></aff><aff xml:lang="en" id="aff-3"><institution>Scientific Center of Chemistry and Physics of Polymers at National University of Uzbekistan</institution><country>Uzbekistan</country></aff><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>15</day><month>08</month><year>2025</year></pub-date><volume>6</volume><issue>6</issue><fpage>825</fpage><lpage>832</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Oksengendler B.L., Maksimov S.E., Marasulov M.B., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Oksengendler B.L., Maksimov S.E., Marasulov M.B.</copyright-holder><copyright-holder xml:lang="en">Oksengendler B.L., Maksimov S.E., Marasulov M.B.</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/912">https://nanojournal.ifmo.ru/jour/article/view/912</self-uri><abstract><p>This work presents a model for the degradation mechanism of organic{inorganic hybrid photovoltaic solar cells based on perovskites. The cross section for formation of Frenkel pairs in the sublattice of iodine is obtained. The channels for its annealing are found. Special attention is paid to the polaron states. It is shown that the stationary number of defects non-monotonically depends on the intensity of solar radiation. This allows one to analyze the properties of the radiation resistance of a device to ionizing radiation.</p></abstract><kwd-group xml:lang="en"><kwd>perovskites</kwd><kwd>degradation</kwd><kwd>ionizing irradiation</kwd><kwd>Varley mechanism</kwd><kwd>polaronic states</kwd><kwd>organic solar cells</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">Yin Wan-Jian, Yang J.-Hui, Kang J., et al. Halide perovskite materials for solar cell; a theoretical review. J. Mat. Chem. A. DOI: 10.10.39/c4ta05033a.</mixed-citation><mixed-citation xml:lang="en">Yin Wan-Jian, Yang J.-Hui, Kang J., et al. 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