Improving the performance of CdTe QDSSCs by chloride treatment and parameter optimization

dc.contributor.authorElibol, Erdem
dc.contributor.authorElibol, Pınar Sevim
dc.contributor.authorÇadırcı, Musa
dc.contributor.authorTutkun, Nedim
dc.date.accessioned2020-04-30T23:18:27Z
dc.date.available2020-04-30T23:18:27Z
dc.date.issued2019
dc.departmentDÜ, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.descriptionWOS: 000460745900006en_US
dc.description.abstractIn this study, organometallic CdTe(Cl) Quantum Dot Sensitized Solar Cells (QDSSCs) using cadmium chloride (CdCl2) treated CdTe QDs were designed for the first time in the literature. The study is divided into 3 basic sections; synthesis of CdTe QD, treatment of CdTe QD with CdCl2 and design CdTe(Cl) QDSSCs. The hot injection method modified by Cannula method was used to synthesize organometallic CdTe QDs. The chloride passivation procedure was applied to CdTe QD with injection of different amount of chloride (12-96 CdCl2/nm(2)) into the CdTe solution. Uv-vis, Photoluminescence (PL), PL Quantum Yield (PLQY), Full width Half Maximum (FWHM) analyses were performed for all CdTe QDs which were synthesized and treated with chloride. As a result of the analyses, PLQY value was increased from 25.66 +/- 2.1 to 87.33 +/- 2.1% with 60 CdCl2/nm(2) treatment. To determine the effects of chloride treatment on QDSSC, CdTe QDSSCs were designed using 6 different CdTe (CI) QDs obtained by different amounts of chloride treatments applied to the surfaces of CdTe QDs. After that, TiO2 thickness, collector electrode selection were chosen by experimental optimization. As a result of the study, FTO/TiCl4/TiO2 (22 mu m)/TiCl4/(36 CdCl2/nm(2)) CdTe(Cl) QD surface was used as the photo anode at the end of all optimization procedures, while FTO/Pt was selected as the collecting electrode surface. I-/I-3(-) redox pairs were injected between these two surfaces. For the designed QDSSC, J(sc), V-oc, filling factor (FF), Power Conversion Efficiency (PCE) were found 2.842 +/- 0.10 mA/cm(2), 0.810 +/- 0.019 V, 56.630 +/- 1.79%, 1.306 +/- 0.10% respectively. This efficiency value is 5.58 times better than the most efficient CdTe QDSSC's efficiency (0.234%) obtained by using organometallic CdTe QDs in the literature.en_US
dc.description.sponsorshipDuzce University Scientific Research Project (DUBAB) [2016.06.03.472]; Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [2211/C]en_US
dc.description.sponsorshipThis study was supported by Duzce University Scientific Research Project (DUBAB) [2016.06.03.472] and Scientific and Technological Research Council of Turkey (TUBITAK) 2211/C Domestic Priority Areas Ph.D. Scholarship Program.en_US
dc.identifier.doi10.1016/j.mssp.2019.02.022en_US
dc.identifier.endpage40en_US
dc.identifier.issn1369-8001
dc.identifier.issn1873-4081
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage30en_US
dc.identifier.urihttps://doi.org/10.1016/j.mssp.2019.02.022
dc.identifier.urihttps://hdl.handle.net/20.500.12684/3318
dc.identifier.volume96en_US
dc.identifier.wosWOS:000460745900006en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofMaterials Science In Semiconductor Processingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCdTeen_US
dc.subjectCdCl2en_US
dc.subjectEfficiencyen_US
dc.subjectQuantum dotsen_US
dc.subjectQDSSCen_US
dc.titleImproving the performance of CdTe QDSSCs by chloride treatment and parameter optimizationen_US
dc.typeArticleen_US

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