Influences of CdSe NCs on the photovoltaic parameters of BHJ organic solar cells

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dc.authoridAllahverdi, Cagdas/0000-0002-6825-5099
dc.authoridONGUL, Fatih/0000-0001-5123-1325
dc.authoridKazici, Mehmet/0000-0001-9048-7788
dc.contributor.authorOngul, Fatih
dc.contributor.authorYuksel, Sureyya Aydin
dc.contributor.authorAllahverdi, Cagdas
dc.contributor.authorBozar, Sinem
dc.contributor.authorKazici, Mehmet
dc.contributor.authorGunes, Serap
dc.date.accessioned2024-12-24T19:27:44Z
dc.date.available2024-12-24T19:27:44Z
dc.date.issued2018
dc.departmentSiirt Üniversitesi
dc.description.abstractIn this study, the high quality CdSe nanocrystals (NCs) capped with stearic acid were synthesized in a solvent and then purified four times by using the precipitation and redissolution process. The average size of the synthesized CdSe NCs was determined similar to 3.0 nm via transmission electron microscopy (TEM) measurement and their corresponding optical band edge energy was also calculated as similar to 2.1 eV using ultraviolet-visible (UV-Vis) absorption spectroscopy. The bulk heterojunction (BHJ) hybrid solar cells based on a ternary system including P3HT, PCBM and CdSe NCs at different weight concentrations (0 wt%, 0.1 wt%, 0.5 wt%, 1 wt% and 2 wt%) were fabricated by spin-casting process. The effect of the concentration of CdSe NCs on the photovoltaic parameters of these BHJ organic solar cells was investigated. The surface morphology of the photoactive layer modified by the incorporation of CdSe NCs into P3HT:PCBM matrix was observed with scanning electron microscopy (SEM). It was shown that when the concentration of CdSe NCs increases above 0.1 wt% in this ternary system, the photovoltaic performance of the devices significantly decreases. The power conversion efficiency of the organic photovoltaic (OPV) device was enhanced similar to 20% by incorporating CdSe NCs with 0.1 wt% with respect to those without CdSe NCs. (C) 2017 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.saa.2018.01.012
dc.identifier.endpage56
dc.identifier.issn1386-1425
dc.identifier.pmid29331821
dc.identifier.scopus2-s2.0-85040241520
dc.identifier.scopusqualityQ1
dc.identifier.startpage50
dc.identifier.urihttps://doi.org/10.1016/j.saa.2018.01.012
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6768
dc.identifier.volume194
dc.identifier.wosWOS:000425199900007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofSpectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectCdSe
dc.subjectNanocrystals
dc.subjectBHJ
dc.subjectOrganic solar cells
dc.titleInfluences of CdSe NCs on the photovoltaic parameters of BHJ organic solar cells
dc.typeArticle

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