Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/8159
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dc.contributor.authorAltaf, Çiğdem Tuç-
dc.contributor.authorAbdullayeva, Nazrin-
dc.contributor.authorCoşkun, Özlem-
dc.contributor.authorKumtepe, Alihan-
dc.contributor.authorYıldırı, İpek Deniz-
dc.contributor.authorErdem, Emre-
dc.contributor.authorLiu, Maochang-
dc.date.accessioned2022-01-15T12:58:48Z-
dc.date.available2022-01-15T12:58:48Z-
dc.date.issued2021-
dc.identifier.issn2475-9953-
dc.identifier.urihttps://doi.org/10.1103/PhysRevMaterials.5.125403-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/8159-
dc.description.abstractZnO thin films in nanorod (NR) and nanoflower (NF) morphologies were used as photoelectrode scaffolds for efficient visible-light-driven photoelectrochemical (PEC) water splitting process, where their decoration with copper indium gallium sulfide (CIGS) and indium sulfide (In2S3) layers resulted in significant PEC performance enhancement. ZnO NF/CIGS/In2S3 photoelectrodes exhibited a remarkably high PEC efficiency (similar to 6.0% applied bias photon-to-current efficiency, 83% incident photon-to-current efficiency) due to the negligible dark current, while ZnO NR/CIGS/In2S3 generated a photocurrent density of 30.0 mA.cm(-2) at 0.4 V (vs Ag/AgCl), being one of the highest performances reported in the literature for copper-based chalcopyrite photoelectrodes so far. The interfacial photoelectrode-electrolyte charge transport dynamics, investigated via intensity-modulated photocurrent spectroscopy, exhibited a sevenfold increase in charge transfer efficiencies with a significant drop in surface recombination kinetics for ZnO NF after CIGS/In2S3 decoration. The obtained results show consistency with numerically modeled electric field distribution profiles and electron paramagnetic resonance results of ZnO NF, rationalizing the enhanced charge transfer rates for decorated samples and confirming the defect passivating nature of CIGS/In2S3.en_US
dc.description.sponsorshipScientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [315M348, 119M030]en_US
dc.description.sponsorshipThis paper was funded by The Scientific and Tech-nological Research Council of Turkey under the research Grants No. 315M348 and No. 119M030. Additionally, the authors would like to thank The Turkish Atomic En-ergy Authority and SESAME for x-ray absorption mea-surements. The authors would also like to express their gratitude to Assoc. Prof. S. Sebnem Cetin and Prof. Dr. Suleyman Ozcelik in the Photonics Application and Re-search Center-Gazi University for ellipsometry and PL measurements. The authors declare no conflict of interest.en_US
dc.language.isoenen_US
dc.publisherAmer Physical Socen_US
dc.relation.ispartofPhysical Review Materialsen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHydrogen-Productionen_US
dc.subjectZno Nanoparticlesen_US
dc.subjectNanorod Arraysen_US
dc.subjectSolaren_US
dc.subjectPhotoluminescenceen_US
dc.subjectCuins2en_US
dc.subjectEmissionen_US
dc.subjectGrowthen_US
dc.subjectPhotocathodesen_US
dc.subjectPerformanceen_US
dc.titleEfficiency Enhancement in Photoelectrochemical Water Splitting: Defect Passivation and Boosted Charge Transfer Kinetics of Zinc Oxide Nanostructures Via Chalcopyrite/Chalcogenide Mix Sensitizationen_US
dc.typeArticleen_US
dc.departmentFaculties, Faculty of Engineering, Department of Electrical and Electronics Engineeringen_US
dc.departmentFaculties, Faculty of Engineering, Department of Material Science and Nanotechnology Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümütr_TR
dc.departmentFakülteler, Mühendislik Fakültesi, Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümütr_TR
dc.identifier.volume5en_US
dc.identifier.issue12en_US
dc.authoridErdem, Emre / 0000-0002-8395-0364-
dc.identifier.wosWOS:000730223000002en_US
dc.identifier.scopus2-s2.0-85121583147en_US
dc.institutionauthorBozbey, Ali-
dc.institutionauthorSankır, Mehmet-
dc.institutionauthorDemirci Sankır, Nurdan-
dc.identifier.doi10.1103/PhysRevMaterials.5.125403-
dc.authorwosidALTAF, Cigdem TUC / AAI-5326-2020-
dc.authorwosidErdem, Emre / B-8052-2010-
dc.authorwosidLiu, Maochang / O-1045-2014-
dc.authorscopusid57204845103-
dc.authorscopusid57191580180-
dc.authorscopusid57225361849-
dc.authorscopusid57215409971-
dc.authorscopusid57221860819-
dc.authorscopusid7005316591-
dc.authorscopusid23967874200-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ1-
item.openairetypeArticle-
item.languageiso639-1en-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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