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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">10.17586/2220-8054-2019-10-4-466-474</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-524</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>Photoelectrochemical cell performance Cu doped ZnO photoanode sensitized by xanthene dyes</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>Kumbhar</surname><given-names>Deepak</given-names></name></name-alternatives><bio xml:lang="en"><p>Jath, 416 404, affiliated to Shivaji University Kolhapur 416004, MS</p><p>Satara, 415 002, affiliated to Shivaji University Kolhapur 416004, MS</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Kumbhar</surname><given-names>Sarita</given-names></name></name-alternatives><bio xml:lang="en"><p>Kolhapur, 416 005, affiliated to Shivaji University Kolhapur 416004</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Delekar</surname><given-names>Sagar</given-names></name></name-alternatives><bio xml:lang="en"><p>Kolhapur, 416 004, MS</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Nalawade</surname><given-names>Rekha</given-names></name></name-alternatives><bio xml:lang="en"><p>Kolhapur, 416 004, MS</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Nalawade</surname><given-names>Avinash</given-names></name></name-alternatives><bio xml:lang="en"><p>Satara, 415 002, affiliated to Shivaji University Kolhapur 416004, MS</p></bio><email xlink:type="simple">avinashnalawaderes@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="en">Department of Chemistry, Raje Ramrao Mahavidyalaya; Department of Chemistry, Lal Bahadur Shastri College<country>India</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="en">Department of Physics, Rajashri Chhatrapati Shahu College<country>India</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="en">Department of Chemistry, Shivaji University<country>India</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="en">Department of Chemistry, Lal Bahadur Shastri College<country>India</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>05</day><month>08</month><year>2025</year></pub-date><volume>10</volume><issue>4</issue><elocation-id>466–474</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Kumbhar D., Kumbhar S., Delekar S., Nalawade R., Nalawade A., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Kumbhar D., Kumbhar S., Delekar S., Nalawade R., Nalawade A.</copyright-holder><copyright-holder xml:lang="en">Kumbhar D., Kumbhar S., Delekar S., Nalawade R., Nalawade A.</copyright-holder><license 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/524">https://nanojournal.ifmo.ru/jour/article/view/524</self-uri><abstract><p>In this study transition metal Cu is doped into ZnO framework at 1, 3 and 5 mol% concentrations by sol-gel method and Photoelectrochemical performance under sensitization is recorded. Structural analysis XRD and Raman gives information of wurtzite structure formation without any mislaid peaks. It also informs decrement in crystalline size and lattice parameters as doping level increases. SEM and EDAX provide nono structure formation with appropriate compositions. Optical analysis by FTIR and PL gives peaks at expected positions while DRS UV-visible peaks show humps with red shift due to effect of Cu doping. After structural and morphological study NPs are deposited on conducting glass surface of FTO substrate by doctor blade method and sensitized with mixed xanthene dyes (Eosine Y., Rhodamine B., and Rose Bengal) for 12 h and photoelectrochemical cell performance are recorded under solar simulator under standard AM 1.5 one sun illumination in that 1 % Cu/ZnO photoanode shows good performance as compared to other.</p></abstract><kwd-group xml:lang="en"><kwd>Sol-gel</kwd><kwd>Cu doped ZnO NPs</kwd><kwd>xanthene dyes</kwd><kwd>sensitization</kwd><kwd>photoelectrochemical cell</kwd></kwd-group><funding-group xml:lang="en"><funding-statement>This research was made possible by support given by DST-FIST Analytical Instrumentation Laboratory of Lal Bahadur Shastri College, Satara and Jaysingpur College, Jaysingpur, Maharashtra, India.</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">Halsnæs K., Garg A. 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