Publication:
Effects of oxygen concentration variation on the structural and optical properties of reactive sputtered WOx thin film

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dc.citedby10
dc.contributor.authorMahjabin S.en_US
dc.contributor.authorMahfuzul Haque M.en_US
dc.contributor.authorKhan S.en_US
dc.contributor.authorSelvanathan V.en_US
dc.contributor.authorJamal M.S.en_US
dc.contributor.authorBashar M.S.en_US
dc.contributor.authorAlkhammash H.I.en_US
dc.contributor.authorIsmail Hossain M.en_US
dc.contributor.authorShahiduzzaman M.en_US
dc.contributor.authorAmin N.en_US
dc.contributor.authorSopian K.en_US
dc.contributor.authorAkhtaruzzaman M.en_US
dc.contributor.authorid57217200870en_US
dc.contributor.authorid57226121522en_US
dc.contributor.authorid57194049079en_US
dc.contributor.authorid57160057200en_US
dc.contributor.authorid55887499100en_US
dc.contributor.authorid36109906900en_US
dc.contributor.authorid56711980800en_US
dc.contributor.authorid39561176900en_US
dc.contributor.authorid55640096500en_US
dc.contributor.authorid7102424614en_US
dc.contributor.authorid7003375391en_US
dc.contributor.authorid57195441001en_US
dc.date.accessioned2023-05-29T09:06:53Z
dc.date.available2023-05-29T09:06:53Z
dc.date.issued2021
dc.descriptionElectron transport properties; Finite difference time domain method; Infrared devices; Optoelectronic devices; Oxide films; Perovskite; Perovskite solar cells; Refractive index; Scanning electron microscopy; Spectroscopy; Surface roughness; Thin films; Transition metal oxides; Transition metals; Concentration variation; Effect of oxygen; Gas flowrate; Optical parameter; Optical-; Oxygen concentrations; Property; Structural and optical properties; Thin-films; Transition-metal oxides; Oxygen; absorption; electron; film; gas flow; optical property; oxygen; perovskite; tungsten; X-ray diffractionen_US
dc.description.abstractTungsten oxide (WOx) has been widely investigated due to mainly its optoelectronic properties. This study primarily aimed to examine the influence of oxygen concentration on the structural and optical properties of WOx films. Herein, WOx thin films have been prepared by reactive sputtering method at low power (50 W) while controlling the Ar:O2 gas flow rate to vary oxygen concentration. Energy Dispersive X-ray (EDX) analysis reveals that the oxygen concentration depends on the gas flow rate. Such oxygen concentration changes affect the film's thickness, confirmed by the field emission scanning electron microscope (FESEM). Atomic force microscopy (AFM) analysis ensures the dependency of surface roughness of the films on the oxygen concentration. The developed films exhibit the amorphous state as validated by X-ray Diffraction (XRD) analysis. The Ultraviolet�Visible (UV�Vis) spectroscopy measurement was also conducted to determine transmittance and absorbance of the film, which further allows realizing necessary optical parameters, such as absorption coefficient, skin depth, energy bandgap, refractive index, extinction coefficient, etc. The oxygen concentration-dependent optical parameters are investigated in the spectral range of UV to near-infrared regions to ensure the use of WOx for optoelectronic device applications. Finally, we considered the optimized WOx film as a potential electron transport layer (ETL) to realize an efficient perovskite solar cell. The optics and optimization of this solar cell were studied by finite-difference time-domain (FDTD) simulations. The investigation allows us to calculate the maximum quantum efficiency (QE) and short-circuit current density (JSC) of ~90% and 22.1 mA/cm2, respectively. � 2021 International Solar Energy Societyen_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.solener.2021.05.031
dc.identifier.epage211
dc.identifier.scopus2-s2.0-85110488948
dc.identifier.spage202
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85110488948&doi=10.1016%2fj.solener.2021.05.031&partnerID=40&md5=11a4a0a3a0f5f50b64661b595091db3b
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/26108
dc.identifier.volume222
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleSolar Energy
dc.titleEffects of oxygen concentration variation on the structural and optical properties of reactive sputtered WOx thin filmen_US
dc.typeArticleen_US
dspace.entity.typePublication
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