Publication:
Mixture deposition method for graphene quantum dots-based dye-sensitized solar cell

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dc.citedby9
dc.contributor.authorMahalingam S.en_US
dc.contributor.authorManap A.en_US
dc.contributor.authorLau K.S.en_US
dc.contributor.authorOmar A.en_US
dc.contributor.authorChelvanathan P.en_US
dc.contributor.authorChia C.H.en_US
dc.contributor.authorAmin N.en_US
dc.contributor.authorMathews I.J.en_US
dc.contributor.authorAfandi N.F.en_US
dc.contributor.authorRahim N.A.en_US
dc.contributor.authorid55434075500en_US
dc.contributor.authorid57200642155en_US
dc.contributor.authorid57196329217en_US
dc.contributor.authorid55641720200en_US
dc.contributor.authorid35766323200en_US
dc.contributor.authorid57215089308en_US
dc.contributor.authorid7102424614en_US
dc.contributor.authorid57384711500en_US
dc.contributor.authorid57189231851en_US
dc.contributor.authorid57202054554en_US
dc.date.accessioned2023-05-29T09:38:23Z
dc.date.available2023-05-29T09:38:23Z
dc.date.issued2022
dc.descriptionEfficiency; Graphene; Graphene quantum dots; Light absorption; Mixtures; Nanocrystals; Photosensitizers; Semiconductor quantum dots; Titanium dioxide; Affinity; Charge collection efficiency; Deposition methods; Dye- sensitized solar cells; Electron collections; High charges; Higher efficiency; Layer by layer; Layer-by-layer assemblies; Photo-anodes; Dye-sensitized solar cellsen_US
dc.description.abstractUnambiguously layer by layer (LBL) assembly of graphene quantum dots (GQDs), and dye (GQDs/dye) on TiO2 photoanode is the traditional and straightforward approach in the fabrication of graphene quantum dot-cosensitized solar cells (QDSSCs). Unfortunately, limited light absorption and low affinity of GQDs to TiO2 surface shadow the advantages of LBL and constrain its practical application. Herein, a new strategy of mixture configuration (GQDs+dye) was investigated. The experimental results demonstrated that the mixture of GQDs+N719 exhibited the highest efficiency of 3.01%. The increased Jsc (5.075 mA/cm2) and high charge collection efficiency (0.96) in the mixture sample indicated enhanced electron collection at TiO2. The less -OH groups on TiO2 provide a good surface intact of GQDs and N719, thus increasing the affinity between the photoanode and photosensitizers. In addition to that, the high surface potential (33.47 mV) of the premixed sample restricted the photogenerated electrons to go into a deep state, reducing back electron transfer. Therefore, mixture assembly of co-sensitization is an effective approach for light-harvesting in QDSSC. � 2021en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo139732
dc.identifier.doi10.1016/j.electacta.2021.139732
dc.identifier.scopus2-s2.0-85121665175
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85121665175&doi=10.1016%2fj.electacta.2021.139732&partnerID=40&md5=cbda664a973e1cb8fbf7f7e02b6459ed
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/26984
dc.identifier.volume404
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleElectrochimica Acta
dc.titleMixture deposition method for graphene quantum dots-based dye-sensitized solar cellen_US
dc.typeArticleen_US
dspace.entity.typePublication
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