{"id":"https://openalex.org/W4405451968","doi":"https://doi.org/10.46481/jnsps.2025.2309","title":"Green synthesis of CuO nanoparticles from Cucurbita maxima leaf extract; a platinum free counter electrode for dye sensitized solar cells","display_name":"Green synthesis of CuO nanoparticles from Cucurbita maxima leaf extract; a platinum free counter electrode for dye sensitized solar cells","publication_year":2024,"publication_date":"2024-12-16","ids":{"openalex":"https://openalex.org/W4405451968","doi":"https://doi.org/10.46481/jnsps.2025.2309"},"language":"en","primary_location":{"id":"doi:10.46481/jnsps.2025.2309","doi":"https://doi.org/10.46481/jnsps.2025.2309","is_oa":true,"landing_page_url":"https://doi.org/10.46481/jnsps.2025.2309","pdf_url":"https://journal.nsps.org.ng/index.php/jnsps/article/download/2309/369","source":{"id":"https://openalex.org/S4210202324","display_name":"Journal of the Nigerian Society of Physical Sciences","issn_l":"2714-2817","issn":["2714-2817","2714-4704"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj","poland-20","russia-white-list-4"],"host_organization":"https://openalex.org/I4405266755","host_organization_name":"Nigerian Society of Physical Sciences","host_organization_lineage":["https://openalex.org/I4405266755"],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the Nigerian Society of Physical Sciences","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://journal.nsps.org.ng/index.php/jnsps/article/download/2309/369","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5063258946","display_name":"Emma Panzi Mukhokosi","orcid":"https://orcid.org/0000-0001-9229-3821","observed_orcids":["https://orcid.org/0000-0001-9229-3821"]},"institutions":[{"id":"https://openalex.org/I43480833","display_name":"Kyambogo University","ror":"https://ror.org/01wb6tr49","country_code":"UG","type":"education","lineage":["https://openalex.org/I43480833"]}],"countries":["UG"],"is_corresponding":false,"raw_author_name":"Emma Panzi Mukhokosi","raw_affiliation_strings":["Department of Physics, Faculty of Science, Kyambogo University, PO Box 1, Kampala, Uganda"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, Faculty of Science, Kyambogo University, PO Box 1, Kampala, Uganda","institution_ids":["https://openalex.org/I43480833"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5115496001","display_name":"Stephen Tenywa","orcid":"https://orcid.org/0009-0005-7816-1888","observed_orcids":["https://orcid.org/0009-0005-7816-1888"]},"institutions":[{"id":"https://openalex.org/I43480833","display_name":"Kyambogo University","ror":"https://ror.org/01wb6tr49","country_code":"UG","type":"education","lineage":["https://openalex.org/I43480833"]}],"countries":["UG"],"is_corresponding":false,"raw_author_name":"Stephen Tenywa","raw_affiliation_strings":["Department of Physics, Faculty of Science, Kyambogo University, PO Box 1, Kampala, Uganda"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, Faculty of Science, Kyambogo University, PO Box 1, Kampala, Uganda","institution_ids":["https://openalex.org/I43480833"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5115496002","display_name":"Nandipha L. Bothab","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I165390105","display_name":"University of South Africa","ror":"https://ror.org/048cwvf49","country_code":"ZA","type":"education","lineage":["https://openalex.org/I165390105"]}],"countries":["ZA"],"is_corresponding":false,"raw_author_name":"Nandipha L. Bothab","raw_affiliation_strings":["College of Graduate Studies, UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, University of South Africa, Pretoria, South Africa Materials; Materials Research Department, Nanosciences African Network (NANOAFNET), iThemba LABS, PO Box 722, Cape Town, South Africa"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Graduate Studies, UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, University of South Africa, Pretoria, South Africa Materials; Materials Research Department, Nanosciences African Network (NANOAFNET), iThemba LABS, PO Box 722, Cape Town, South Africa","institution_ids":["https://openalex.org/I165390105"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068671918","display_name":"Shohreh Azizi","orcid":"https://orcid.org/0000-0003-0419-9953","observed_orcids":["https://orcid.org/0000-0003-0419-9953"]},"institutions":[{"id":"https://openalex.org/I165390105","display_name":"University of South Africa","ror":"https://ror.org/048cwvf49","country_code":"ZA","type":"education","lineage":["https://openalex.org/I165390105"]}],"countries":["ZA"],"is_corresponding":false,"raw_author_name":"Shohreh Azizi","raw_affiliation_strings":["College of Graduate Studies, UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, University of South Africa, Pretoria, South Africa Materials; Research Department, Nanosciences African Network (NANOAFNET), iThemba LABS, PO Box 722, Cape Town, South Africa"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Graduate Studies, UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, University of South Africa, Pretoria, South Africa Materials; Research Department, Nanosciences African Network (NANOAFNET), iThemba LABS, PO Box 722, Cape Town, South Africa","institution_ids":["https://openalex.org/I165390105"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091261164","display_name":"Mathapelo Pearl Seopela","orcid":"https://orcid.org/0000-0002-9680-1763","observed_orcids":["https://orcid.org/0000-0002-9680-1763"]},"institutions":[{"id":"https://openalex.org/I165390105","display_name":"University of South Africa","ror":"https://ror.org/048cwvf49","country_code":"ZA","type":"education","lineage":["https://openalex.org/I165390105"]}],"countries":["ZA"],"is_corresponding":false,"raw_author_name":"Mathapelo Pearl Seopela","raw_affiliation_strings":["Department of Chemical Sciences, University of South Africa, Auckland Park Campus, PO Box 524, Auckland Park, 2006, Johannesburg, South Africa"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemical Sciences, University of South Africa, Auckland Park Campus, PO Box 524, Auckland Park, 2006, Johannesburg, South Africa","institution_ids":["https://openalex.org/I165390105"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5078583355","display_name":"M. M\u00e2aza","orcid":"https://orcid.org/0000-0003-3429-509X","observed_orcids":["https://orcid.org/0000-0003-3429-509X","https://orcid.org/0000-0002-3820-7838"]},"institutions":[{"id":"https://openalex.org/I165390105","display_name":"University of South Africa","ror":"https://ror.org/048cwvf49","country_code":"ZA","type":"education","lineage":["https://openalex.org/I165390105"]}],"countries":["ZA"],"is_corresponding":false,"raw_author_name":"Malik Maaza","raw_affiliation_strings":["College of Graduate Studies, UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, University of South Africa, Pretoria, South Africa; Materials Research Department, Nanosciences African Network (NANOAFNET), iThemba LABS, PO Box 722, Cape Town, South Africa"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Graduate Studies, UNESCO UNISA Africa Chair in Nanosciences & Nanotechnology, University of South Africa, Pretoria, South Africa; Materials Research Department, Nanosciences African Network (NANOAFNET), iThemba LABS, PO Box 722, Cape Town, South Africa","institution_ids":["https://openalex.org/I165390105"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":40000,"currency":"NGN","value_usd":140},"apc_paid":{"value":40000,"currency":"NGN","value_usd":140},"fwci":0.5323,"has_fulltext":true,"cited_by_count":8,"citation_normalized_percentile":{"value":0.51196854,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"2309","last_page":"2309"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10024","display_name":"TiO2 Photocatalysis and Solar Cells","score":0.6182000041007996,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10024","display_name":"TiO2 Photocatalysis and Solar Cells","score":0.6182000041007996,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11907","display_name":"Copper-based nanomaterials and applications","score":0.17829999327659607,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10079","display_name":"Nanoparticles: synthesis and applications","score":0.15520000457763672,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/green-synthesis","display_name":"green synthesis","score":0.9240000247955322},{"id":"https://openalex.org/keywords/cuo-nanoparticles","display_name":"copper oxide nanoparticles","score":0.8489999771118164},{"id":"https://openalex.org/keywords/cucurbita-maxima","display_name":"Cucurbita maxima","score":0.9380000233650208},{"id":"https://openalex.org/keywords/leaf-extract","display_name":"leaf extract","score":0.8029999732971191},{"id":"https://openalex.org/keywords/dye-sensitized-solar-cells","display_name":"dye-sensitized solar cells","score":0.8519999980926514},{"id":"https://openalex.org/keywords/pt-free-counter-electrode","display_name":"platinum-free counter electrode","score":0.9150000214576721},{"id":"https://openalex.org/keywords/metal-oxide-nanoparticles","display_name":"metal oxide nanoparticles","score":0.8069999814033508},{"id":"https://openalex.org/keywords/photovoltaic-performance","display_name":"photovoltaic performance","score":0.8090000152587891},{"id":"https://openalex.org/keywords/power-conversion-efficiency","display_name":"power conversion efficiency","score":0.7910000085830688}],"concepts":[{"id":"https://openalex.org/C48421929","wikidata":"https://www.wikidata.org/wiki/Q81121","display_name":"Dye-sensitized solar cell","level":4,"score":0.790866494178772},{"id":"https://openalex.org/C185910354","wikidata":"https://www.wikidata.org/wiki/Q1768785","display_name":"Auxiliary electrode","level":4,"score":0.7105671167373657},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.7072797417640686},{"id":"https://openalex.org/C2781186446","wikidata":"https://www.wikidata.org/wiki/Q161180","display_name":"Cucurbita maxima","level":2,"score":0.6895604729652405},{"id":"https://openalex.org/C206991015","wikidata":"https://www.wikidata.org/wiki/Q192704","display_name":"Energy conversion efficiency","level":2,"score":0.547704815864563},{"id":"https://openalex.org/C17525397","wikidata":"https://www.wikidata.org/wiki/Q176140","display_name":"Electrode","level":2,"score":0.5156592130661011},{"id":"https://openalex.org/C89395315","wikidata":"https://www.wikidata.org/wiki/Q181232","display_name":"Anode","level":3,"score":0.5046130418777466},{"id":"https://openalex.org/C155672457","wikidata":"https://www.wikidata.org/wiki/Q61231","display_name":"Nanoparticle","level":2,"score":0.49977660179138184},{"id":"https://openalex.org/C57631264","wikidata":"https://www.wikidata.org/wiki/Q1812203","display_name":"Open-circuit voltage","level":3,"score":0.4813988208770752},{"id":"https://openalex.org/C42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","level":1,"score":0.439849317073822},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.4351392984390259},{"id":"https://openalex.org/C68583231","wikidata":"https://www.wikidata.org/wiki/Q206907","display_name":"Short circuit","level":3,"score":0.4194684326648712},{"id":"https://openalex.org/C13965031","wikidata":"https://www.wikidata.org/wiki/Q243545","display_name":"Nuclear chemistry","level":1,"score":0.3318336308002472},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.2662672698497772},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.18363136053085327},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.1531761884689331},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C147789679","wikidata":"https://www.wikidata.org/wiki/Q11372","display_name":"Physical chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C68801617","wikidata":"https://www.wikidata.org/wiki/Q162908","display_name":"Electrolyte","level":3,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.46481/jnsps.2025.2309","doi":"https://doi.org/10.46481/jnsps.2025.2309","is_oa":true,"landing_page_url":"https://doi.org/10.46481/jnsps.2025.2309","pdf_url":"https://journal.nsps.org.ng/index.php/jnsps/article/download/2309/369","source":{"id":"https://openalex.org/S4210202324","display_name":"Journal of the Nigerian Society of Physical Sciences","issn_l":"2714-2817","issn":["2714-2817","2714-4704"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj","poland-20","russia-white-list-4"],"host_organization":"https://openalex.org/I4405266755","host_organization_name":"Nigerian Society of Physical Sciences","host_organization_lineage":["https://openalex.org/I4405266755"],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the Nigerian Society of Physical Sciences","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:4f759d31ed4c441e8ab2b9f1e9272f5e","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/4f759d31ed4c441e8ab2b9f1e9272f5e","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of Nigerian Society of Physical Sciences, Vol 7, Iss 1 (2025)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.46481/jnsps.2025.2309","doi":"https://doi.org/10.46481/jnsps.2025.2309","is_oa":true,"landing_page_url":"https://doi.org/10.46481/jnsps.2025.2309","pdf_url":"https://journal.nsps.org.ng/index.php/jnsps/article/download/2309/369","source":{"id":"https://openalex.org/S4210202324","display_name":"Journal of the Nigerian Society of Physical Sciences","issn_l":"2714-2817","issn":["2714-2817","2714-4704"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj","poland-20","russia-white-list-4"],"host_organization":"https://openalex.org/I4405266755","host_organization_name":"Nigerian Society of Physical Sciences","host_organization_lineage":["https://openalex.org/I4405266755"],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the Nigerian Society of Physical Sciences","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.8485000133514404,"id":"https://metadata.un.org/sdg/7"},{"display_name":"Responsible consumption and production","score":0.5171999931335449,"id":"https://metadata.un.org/sdg/12"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4405451968.pdf","grobid_xml":"https://content.openalex.org/works/W4405451968.grobid-xml"},"referenced_works_count":55,"referenced_works":["https://openalex.org/W792465768","https://openalex.org/W1768967549","https://openalex.org/W1967682417","https://openalex.org/W1971014044","https://openalex.org/W2002456484","https://openalex.org/W2013780792","https://openalex.org/W2032420072","https://openalex.org/W2043961251","https://openalex.org/W2055516665","https://openalex.org/W2057206592","https://openalex.org/W2063518190","https://openalex.org/W2128027330","https://openalex.org/W2139121213","https://openalex.org/W2144971227","https://openalex.org/W2159255859","https://openalex.org/W2387111398","https://openalex.org/W2514221111","https://openalex.org/W2519736832","https://openalex.org/W2520464414","https://openalex.org/W2553270454","https://openalex.org/W2555427031","https://openalex.org/W2567043530","https://openalex.org/W2605837223","https://openalex.org/W2607967845","https://openalex.org/W2745464750","https://openalex.org/W2760198757","https://openalex.org/W2792041125","https://openalex.org/W2882999347","https://openalex.org/W2888693712","https://openalex.org/W2919330658","https://openalex.org/W2919761185","https://openalex.org/W2923077806","https://openalex.org/W3034089442","https://openalex.org/W3036804818","https://openalex.org/W3043939672","https://openalex.org/W3106915745","https://openalex.org/W3111562519","https://openalex.org/W3159211724","https://openalex.org/W3183900083","https://openalex.org/W3194083483","https://openalex.org/W3213185063","https://openalex.org/W3217312893","https://openalex.org/W4210587046","https://openalex.org/W4293216768","https://openalex.org/W4306153457","https://openalex.org/W4306742803","https://openalex.org/W4311491875","https://openalex.org/W4312698703","https://openalex.org/W4313490882","https://openalex.org/W4385585344","https://openalex.org/W4387675557","https://openalex.org/W4390512366","https://openalex.org/W4396530909","https://openalex.org/W4401049645","https://openalex.org/W4402342843"],"related_works":["https://openalex.org/W2002456484","https://openalex.org/W3214602538","https://openalex.org/W4281264231","https://openalex.org/W4401415259","https://openalex.org/W3001876676","https://openalex.org/W4414027100","https://openalex.org/W4414747447","https://openalex.org/W4400260220","https://openalex.org/W2781563488","https://openalex.org/W6885090469"],"abstract_inverted_index":{"Green":[0],"synthesis":[1],"of":[2,48,112,126,133,140,149],"metal":[3,14,51],"oxides":[4,31,52],"has":[5],"attracted":[6],"attention":[7],"as":[8,40,53,76,115],"the":[9,93],"latest":[10],"technology":[11],"in":[12,34,79],"synthesizing":[13],"oxide":[15],"nanoparticles":[16,65],"due":[17],"to":[18,87,91],"its":[19,24],"simplicity,":[20],"cheapness,":[21],"non-toxicity":[22],"and":[23,44,74,104,143],"ability":[25],"for":[26],"large":[27],"scale":[28],"production.":[29],"Metal":[30],"find":[32],"applications":[33,47],"dye":[35,110],"sensitized":[36],"solar":[37],"cells":[38],"(DSSCs)":[39],"counter":[41,54],"electrodes":[42,55],"(CEs)":[43],"photo-anodes.":[45],"However,":[46],"green":[49],"synthesized":[50,68,82],"have":[56],"not":[57],"been":[58],"fully":[59],"explored.":[60],"In":[61],"this":[62],"study,":[63],"CuO":[64,83],"(NPs)":[66],"were":[67,85,157],"from":[69,111],"Cucurbita":[70,113],"maxima":[71,114],"leaf":[72],"extract":[73],"applied":[75],"a":[77,108,116,119,136,144],"CE":[78],"DSSC.":[80],"Uniformly":[81],"NPs":[84],"subjected":[86],"various":[88],"characterization":[89],"tools":[90],"obtain":[92],"crystal":[94],"structure,":[95],"surface":[96],"morphology,":[97],"particle":[98],"size,":[99],"optical":[100],"properties,":[101],"chemical":[102],"bonds":[103],"photovoltaic":[105],"properties.":[106],"Using":[107],"natural":[109],"photon":[117],"absorber,":[118],"short":[120],"circuit":[121,130],"current":[122],"density":[123],"(":[124],"Jsc)":[125],"4.2":[127],"\u00b5A/cm2,":[128],"open":[129],"voltage":[131],"(Voc)":[132],"0.17":[134],"V,":[135],"maximum":[137],"power":[138,145],"(Pmax)":[139],"0.18":[141],"mW/cm2,":[142],"conversion":[146],"efficiency":[147],"(PCE)":[148],"1.8":[150],"\u00d7":[151],"10?4":[152],"%":[153],"under":[154],"one-sun":[155],"illumination":[156],"obtained.":[158]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":6}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2024-12-17T00:00:00"}