Optical and electrical characterization of ZnS:Sn thin films for solar cell application

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dc.contributor.authorWanjala, K. S.
dc.contributor.authorNjoroge, W. K.
dc.contributor.authorNgaruiya, J. M.
dc.date.accessioned2016-08-02T14:27:05Z
dc.date.available2016-08-02T14:27:05Z
dc.date.issued2016
dc.descriptionDOI: 10.5923/j.ijee.20160601.01en_US
dc.description.abstractTin Doped Zinc Sulphide (ZnS:Sn) thin films are a special kind of material that exhibit electrical conductivity and at the same time, high transmittance in visible region making it suitable for Solar Cell applications. To study the effect of Sn doping on optical and electrical properties of ZnS thin films, a series of investigations were made. Thin films were deposited on glass substrate from ZnCl 2 , and SC (NH 2 ) 2 , in ammonium solution with different low tin concentration, utilizing a chemical bath deposition technique. Optical and electrical characterization of the films with different amounts of dopant was carried out using UV-VIS-NIR spectrophotometer Solid State 3700 DUV and Four Point-Probes. All films demonstrated transmittance above 70% for wavelength above 540nm. On average reflectance was below 25% for the same wavelength. Electrical resistivity increased with increase in Sn ion concentration and it ranged between, 9.62 × 10 1 Ω-cm to 1.19 × 10 2 Ω-cm. A comparison of the obtained results revealed that low concentration of Sn doping improves transmittance of ZnS films and makes them suitable for application as window layer of ZnS:Sn/CuO solar cell. Keywords Chemical Bath Deposition, Transmittance, Reflectance, Sn doped ZnS, Electrical Propertiesen_US
dc.identifier.citationInternational Journal of Energy Engineering 2016, 6;1, DOI: 10.5923/j.ijee.20160601.01en_US
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/14861
dc.language.isoenen_US
dc.subjectChemical Bath Depositionen_US
dc.subjectTransmittanceen_US
dc.subjectReflectanceen_US
dc.subjectSn doped ZnSen_US
dc.subjectElectrical Propertiesen_US
dc.titleOptical and electrical characterization of ZnS:Sn thin films for solar cell applicationen_US
dc.typeArticleen_US
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