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Effect of polyethylene glycol in graphene quantum dots for dye-sensitized solar cell

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dc.citedby0
dc.contributor.authorManap A.en_US
dc.contributor.authorMahalingam S.en_US
dc.contributor.authorRabeya R.en_US
dc.contributor.authorLau K.S.en_US
dc.contributor.authorChia C.H.en_US
dc.contributor.authorLiew P.J.en_US
dc.contributor.authorid57200642155en_US
dc.contributor.authorid55434075500en_US
dc.contributor.authorid57207761973en_US
dc.contributor.authorid57196329217en_US
dc.contributor.authorid57215089308en_US
dc.contributor.authorid55361533100en_US
dc.date.accessioned2025-03-03T07:42:24Z
dc.date.available2025-03-03T07:42:24Z
dc.date.issued2024
dc.description.abstractThis study aims to explore the optical, structural, and chemical characteristics of polyethylene glycol (PEG) on graphene quantum dots (GQDs) for use in dye-sensitized solar cells (DSSCs). Although GQDs have the potential to enhance photon absorption in DSSCs, direct contact with the dye can lead to the degradation of GQD properties and reduced DSSC performance. To address this issue, PEG was applied as a passivation layer on GQDs co-sensitized with N719 dye, resulting in improved DSSC efficiency. The PEG-GQDs produced enhanced blue luminescence and good ultraviolet-to-visible light absorption with minimum structural defects confirmed by the Raman results. PEG also functions as a linker, facilitating the effective attachment of GQDs and dye. The nonpolar pro-oil groups on the GQD surface are adsorbed through coordination bond exchange (?OH functional group of the GQD), allowing for good dye permeability. The DSSC based on GQDs achieved a lower power conversion efficiency (0.93%) compared to the DSSC based on PEG-GQDs (1.27%). Graphical abstract: (Figure presented.) ? The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1007/s00289-024-05222-z
dc.identifier.epage10896
dc.identifier.issue12
dc.identifier.scopus2-s2.0-85187917371
dc.identifier.spage10885
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85187917371&doi=10.1007%2fs00289-024-05222-z&partnerID=40&md5=56ba52b000466c97757b30c1c34d8feb
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36433
dc.identifier.volume81
dc.pagecount11
dc.publisherSpringer Science and Business Media Deutschland GmbHen_US
dc.sourceScopus
dc.sourcetitlePolymer Bulletin
dc.subjectCatalyst activity
dc.subjectConversion efficiency
dc.subjectDye-sensitized solar cells
dc.subjectGraphene
dc.subjectLight absorption
dc.subjectNanocrystals
dc.subjectPassivation
dc.subjectPolyethylenes
dc.subjectQuantum efficiency
dc.subjectSemiconductor quantum dots
dc.subjectCell-based
dc.subjectChemical characteristic
dc.subjectDirect contact
dc.subjectDye- sensitized solar cells
dc.subjectOptical characteristics
dc.subjectPassivation layer
dc.subjectPhotons absorption
dc.subjectProperty
dc.subjectSolar cell performance
dc.subjectStructural characteristics
dc.subjectPolyethylene glycols
dc.titleEffect of polyethylene glycol in graphene quantum dots for dye-sensitized solar cellen_US
dc.typeArticleen_US
dspace.entity.typePublication
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