Selected organic dyes (carminic acid, pyrocatechol violet and dithizone) sensitized metal (silver, neodymium) doped TiO2/ZnO nanostructured materials: A photoanode for hybrid bulk heterojunction solar cells

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dc.authorscopusid57213508894
dc.authorscopusid25624466500
dc.authorscopusid36769182600
dc.authorscopusid57211323464
dc.authorscopusid57215720775
dc.authorscopusid57210134877
dc.contributor.authorUllah, Naimat
dc.contributor.authorErten-Ela, Sule
dc.contributor.authorShah, Syed Mujtaba
dc.contributor.authorHussain, Hazrat
dc.contributor.authorAnsir, Rotaba
dc.contributor.authorQamar, Samina
dc.date.accessioned2023-01-12T19:56:24Z
dc.date.available2023-01-12T19:56:24Z
dc.date.issued2022
dc.departmentN/A/Departmenten_US
dc.description.abstractA photoactive nanohybrid material consisting of pyrocatechol violet, carminic acid and dithizone dyes functionalized silver and neodymium-doped TiO2/ZnO nanostructured materials is reported here, as photoactive blend, for solid-state dye sensitized solar cell. First of all we synthesized metals (silver, neodymium) doped (TiO2) Titanium oxide nanoparticles and their nanocomposites (TiO2/ZnO, M-TiO2/ZnO) using the sol-gel and reflux technique, respectively. The synthesized samples were then characterized by UV-Visible spectroscopy, X-Ray diffraction Analysis (XRD), Scanning electron microscopy (SEM), Energy dispersive X-Ray Analysis (EDX), and Fourier Transform infrared spectroscopy (FTIR). Optical studies were done through UV-Visible spectroscopy and the absorption spectra were used to calculate band gaps. The value of the energy gap for TiO2 nanoparticles is 3.10 eV which was gradually tuned to 2.47 eV after incorporating metals (Ag and Nd) and forming respective nanocomposites. X-Ray diffraction Analysis (XRD) patterns revealed the purity and crystallinity in samples. Scanning electron microscopy (SEM) confirmed the irregular morphology (nanorods and spherical shaped) of ZnO and TiO2 nanostructures respectively. The elemental composition of nanomaterials was successfully investigated using energy dispersive X-ray analysis (EDX). In the absence of any impurities, Fourier Transform infrared spectroscopy (FTIR) was used to identify the functional groups in synthesized material. For device fabrication, a solid-state electrolyte, P3HT, a hole conducting polymer was used. Characterization of fabricated solar cells was done using I-V measurements. Under simulated solar irradiation, the DSSC based on pyrocate-chol violet sensitized neodymium doped TiO2/ZnO nanohybrid materials exhibited the best PCE (power conversion efficiency) of 2.38 % and significantly improved Jsc (short circuit current density) of 15.68 mA/ cm2 as compared to carminic acid and dithizone in photovoltaic measurements. The improved power conversion efficiency of this device is ascribed to the particle size, increased dye adsorption, increased surface area and thus improved short circuit current density (Jsc). (c) 2022 Published by Elsevier B.V.en_US
dc.description.sponsorshipQuaid-i-Azam University, Islamabad [6169/Federal//NRPU/RD/HEC/16]en_US
dc.description.sponsorshipWe are highly thankful to Higher education commission of Pakistan under project No-6169/Federal//NRPU/R & D/HEC/16 for financial support and Quaid-i-Azam University, Islamabad, for providing laboratory and other facilities.en_US
dc.identifier.doi10.1016/j.saa.2022.121387
dc.identifier.issn1386-1425
dc.identifier.issn1873-3557
dc.identifier.pmid35597162en_US
dc.identifier.scopus2-s2.0-85130928257en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1016/j.saa.2022.121387
dc.identifier.urihttps://hdl.handle.net/11454/76846
dc.identifier.volume278en_US
dc.identifier.wosWOS:000806375000003en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofSpectrochimica Acta Part A-Molecular and Biomolecular Spectroscopyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPyrocatechol violeten_US
dc.subjectCarminic aciden_US
dc.subjectDithizoneen_US
dc.subjectSolid state dye sensitized solar cellen_US
dc.subjectI-V measurementsen_US
dc.subjectPhotocatalytic Activityen_US
dc.subjectNanotube Arraysen_US
dc.subjectNanoparticlesen_US
dc.subjectGelen_US
dc.subjectSpectroscopyen_US
dc.subjectDegradationen_US
dc.subjectElectrolyteen_US
dc.subjectAdsorptionen_US
dc.subjectConversionen_US
dc.subjectFilmsen_US
dc.titleSelected organic dyes (carminic acid, pyrocatechol violet and dithizone) sensitized metal (silver, neodymium) doped TiO2/ZnO nanostructured materials: A photoanode for hybrid bulk heterojunction solar cellsen_US
dc.typeArticleen_US

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