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Enhanced PEC characteristics for CdSe polycrystalline film electrodes prepared by combined electrochemical/chemical bath depositions

hal.structure.identifierDepartment of Chemistry
dc.contributor.authorZYOUD, Ahed
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorABDUL-RAHMAN, Nour N.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCAMPET, Guy
hal.structure.identifierDansuk Industrial Co.
dc.contributor.authorPARK, Daehoon
hal.structure.identifierDepartment of Materials System Engineering
dc.contributor.authorKWON, Hansang
hal.structure.identifierEnergy Materials Laboratory
dc.contributor.authorKIM, Tae Woo
hal.structure.identifierEnergy Materials Laboratory
dc.contributor.authorCHOI, Hyun-Jong
hal.structure.identifierDepartment of Electrical and Computer Engineering [Hsinchu]
dc.contributor.authorHELAL H. S., Mohamed
hal.structure.identifierDepartment of Chemistry
dc.contributor.authorHILAL, Hikmat S.
dc.date.issued2016-08
dc.identifier.issn1572-6657
dc.description.abstractEnPolycrystalline CdSe films have been deposited onto fluorine doped tin oxide (FTO/glass) substrates by three different techniques, electrochemical deposition (ECD), chemical bath deposition (CBD) and, for the first time, combined ECD and CBD (ECD/CBD). The films were comparatively characterized by photoluminescence spectra (PL), electronic absorption spectra, scanning electron microscopy (SEM) and X-ray diffraction (XRD). The SEM micrographs show that the films involved rod shaped agglomerates with various lengths and widths. XRD patterns show that the three systems involved nano-sized CdSe particles with cubic type crystals. Based on Scherrer's equation, the ECD film showed larger particle size than the CBD film, while the ECD/CBD film showed largest particles among the series. Similarly, the band gap values varied for different films as CBD > ECD > ECD/CBD. Photo-electrochemical (PEC) characteristics, including photo-current density vs. voltage (J-V) plots, conversion efficiency (ƞ), fill factor (FF) and stability were all studied for different film electrodes. The films exhibited n-type behaviors with direct band gaps. The new ECD/CBD-CdSe electrode exhibited higher conversion efficiency (ƞ% ~ 4.40) than other counterparts. The results show the added value of combining ECD and CBD methods in enhancing PEC characteristics of CdSe film electrodes, even with no additional treatment.
dc.language.isoen
dc.publisherElsevier
dc.subject.enCdSe film electrodes
dc.subject.enElectrochemical deposition
dc.subject.enChemical bath deposition
dc.subject.enCombined electrochemical/chemical bath deposition
dc.subject.enPhoto-electrochemistry
dc.subject.enConversion efficiency enhancement
dc.subject.enStability enhancement
dc.title.enEnhanced PEC characteristics for CdSe polycrystalline film electrodes prepared by combined electrochemical/chemical bath depositions
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jelechem.2016.04.048
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Electroanalytical Chemistry
bordeaux.page7-13
bordeaux.volume774
bordeaux.peerReviewedoui
hal.identifierhal-01332014
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01332014v1
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