Effect of Pb:S molar ratio in precursor solution on the properties of lead sulphide thin films by ultrasonic spray pyrolysis

dc.authoridSARICA, Emrah/0000-0002-9339-5114
dc.contributor.authorSarica, Emrah
dc.contributor.authorBilgin, Vildan
dc.date.accessioned2025-01-27T20:20:25Z
dc.date.available2025-01-27T20:20:25Z
dc.date.issued2017
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this work, PbS thin films were deposited onto glass substrate at 225 degrees C by spraying precursor solution prepared with different molar ratio of lead acetate and thiourea as a source of Pb2+ and S2- respectively in order to investigate the effect of Pb:S molar ratio in the precursor solution on the physical properties of PbS thin films. Structural investigations carried out by X-ray diffractometer have shown that all films have fcc cubic structure and the average crystal size increased from 11 nm to 25 nm with the increasing the thiourea ratio in the precursor solution. In order to analyze the surface morphology of PbS thin films, AFM and SEM images were taken and elemental analysis of the films was performed by EDS. Optical transmittance and absorption spectra show that all deposited films have fairly low transmittance and high absorbance in the visible region. Additionally, it was determined that optical band gap of the deposited films were varied between 1.18 eV and 1.37 eV. As a consequence of electrical investigations, it was seen that all films have p-type conductivity and electrical resistivity decreased by increasing thiourea molar ratio in the precursor solution. All examinations have revealed that the molar ratio of lead acetate and thiourea has a significant effect on the physical properties of PbS thin films.
dc.identifier.doi10.1016/j.mssp.2017.07.007
dc.identifier.endpage49
dc.identifier.issn1369-8001
dc.identifier.issn1873-4081
dc.identifier.scopus2-s2.0-85022229329
dc.identifier.scopusqualityQ1
dc.identifier.startpage42
dc.identifier.urihttps://doi.org/10.1016/j.mssp.2017.07.007
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21703
dc.identifier.volume71
dc.identifier.wosWOS:000412963700007
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofMaterials Science in Semiconductor Processing
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPbS thin films
dc.subjectUltrasonic spray pyrolysis
dc.subjectXRD
dc.subjectSEM
dc.subjectElectrical properties
dc.subjectOptical properties
dc.titleEffect of Pb:S molar ratio in precursor solution on the properties of lead sulphide thin films by ultrasonic spray pyrolysis
dc.typeArticle

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