Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/19655
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dc.coverage.spatialPhysicsen_US
dc.date.accessioned2014-06-23T13:51:17Z-
dc.date.available2014-06-23T13:51:17Z-
dc.date.issued2014-06-23-
dc.identifier.urihttp://hdl.handle.net/10603/19655-
dc.description.abstractThe present investigation comprises of the studies on the electrical, optical and structural characterisations of H2PcOC8, ZnPcOC8 and CuPcOC8 thin films. The effects of gamma irradiation on the optical and electrical properties are also studied. Powdered samples of spectroscopically pure H2PcOC8, ZnPcOC8 and CuPcOC8 obtained from Sigma Aldrich Chemical Company, USA are used as the source material. Thin films are prepared at a base pressure of 10-6 m. bar using Hind Hivac 12 A4 thermal evaporation plant. Thicknesses of the films are measured using Tolansky s multiple beam interference technique. The films are annealed in air and vacuum for one hour. Electrical studies are performed using a programmable Keithley electrometer (model No. 617). The effects of air and vacuum annealed samples on the electrical conductivity are also studied. Activation energies are determined. Optical characterisations of the thin films are carried out with different thicknesses and for different air and vacuum annealing temperatures. Absorption spectra of these thin films are recorded using Shimadzu 160 A spectrophotometer. Band gaps are determined in each case. Structure of the thin films is studied by X-ray diffractograms (XRD). Surface morphological characterisations of these thin films are done using JEOL JSM 6390 Scanning Electron Microscope (SEM). The effects of gamma irradiations on the optical and electrical properties are also studied by irradiating the thin films with gamma rays using Gamma ray Chamber 5000 newlineen_US
dc.format.extentxxxiv, 217p.en_US
dc.languageEnglishen_US
dc.relationen_US
dc.rightsuniversityen_US
dc.titleFabrication and characterization studies in organic semiconductor thin films of H2PcOC8 ZnPcOC8 and CuPcOC8en_US
dc.title.alternativeen_US
dc.creator.researcherVadakel, Vinu Ten_US
dc.subject.keywordCopper octakis octyloxy phthalocyaninesen_US
dc.subject.keywordOctakis octyloxy phthalocyaninesen_US
dc.subject.keywordOrganic semiconductoren_US
dc.subject.keywordPhthalocyaninesen_US
dc.subject.keywordThin filmsen_US
dc.subject.keywordZinc octakis octyloxy phthalocyaninesen_US
dc.description.noteBibliography in each chaptersen_US
dc.contributor.guideMenon, C Sen_US
dc.publisher.placeKottayamen_US
dc.publisher.universityMahatma Gandhi Universityen_US
dc.publisher.institutionSchool of Pure and Applied Physicsen_US
dc.date.registered01/12/2007en_US
dc.date.completed25/06/2012en_US
dc.date.awarded30/09/2013en_US
dc.format.dimensionsen_US
dc.format.accompanyingmaterialNoneen_US
dc.source.universityUniversityen_US
dc.type.degreePh.D.en_US
Appears in Departments:School of Pure and Applied Physics

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01_title.pdfAttached File28.79 kBAdobe PDFView/Open
02_dedication.pdf20.29 kBAdobe PDFView/Open
03_declaration.pdf36.81 kBAdobe PDFView/Open
04_certificate.pdf55.03 kBAdobe PDFView/Open
05_acknowledgement.pdf28.81 kBAdobe PDFView/Open
06_abstract.pdf27.12 kBAdobe PDFView/Open
07_preface.pdf69.05 kBAdobe PDFView/Open
08_list_of_publications.pdf55.45 kBAdobe PDFView/Open
09_contents.pdf46.06 kBAdobe PDFView/Open
10_list_of_tables.pdf32.04 kBAdobe PDFView/Open
11_list_of_figures.pdf68.69 kBAdobe PDFView/Open
12_chapter1.pdf348.81 kBAdobe PDFView/Open
13_chapter2.pdf1.15 MBAdobe PDFView/Open
14_chapter3.pdf195.35 kBAdobe PDFView/Open
15_chapter4.pdf636.43 kBAdobe PDFView/Open
16_chapter5.pdf1.45 MBAdobe PDFView/Open
17_chapter6.pdf328.28 kBAdobe PDFView/Open
18_summary.pdf62.18 kBAdobe PDFView/Open


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