Effects of surface morphology on the optical and electrical properties of Schottky diodes of CBD deposited ZnO nanostructures

dc.contributor.authorMwankemwa, Benard S.
dc.contributor.authorAkinkuade, Shadrach Tunde
dc.contributor.authorMaabong, Kelebogile
dc.contributor.authorNel, Jacqueline Margot
dc.contributor.authorDiale, M. (Mmantsae Moche)
dc.date.accessioned2018-12-03T09:13:48Z
dc.date.issued2018-04
dc.description.abstractWe report on effect of surface morphology on the optical and electrical properties of chemical bath deposited Zinc oxide (ZnO) nanostructures. ZnO nanostructures were deposited on the seeded conducting indium doped tin oxide substrate positioned in three different directions in the growth solution. Field emission scanning electron microscopy was used to evaluate the morphological properties of the synthesized nanostructures and revealed that the positioning of the substrate in the growth solution affects the surface morphology of the nanostructures. The optical absorbance, photoluminescence and Raman spectroscopy of the resulting nanostructures are discussed. The electrical characterization of the Schottky diode such as barrier height, ideality factor, rectification ratios, reverse saturation current and series resistance were found to depend on the nanostructures morphology. In addition, current transport mechanism in the higher forward bias of the Schottky diode was studied and space charge limited current was found to be the dominant transport mechanism in all samples.en_ZA
dc.description.departmentPhysicsen_ZA
dc.description.embargo2019-04-15
dc.description.librarianhj2018en_ZA
dc.description.sponsorshipThe University of Pretoria and National Research Foundation (NRF), South Africa, Grant No: 91550 and 94166.en_ZA
dc.description.urihttp://www.elsevier.com/locate/physben_ZA
dc.identifier.citationMwankemwa, B.S., Akinkuade, S., Maabong, K. et al. 2018, 'Effects of surface morphology on the optical and electrical properties of Schottky diodes of CBD deposited ZnO nanostructures', Physica B: Condensed Matter, vol. 535, pp. 175-180.en_ZA
dc.identifier.issn0921-4526 (print)
dc.identifier.issn1873-2135 (online)
dc.identifier.other10.1016/j.physb.2017.07.030
dc.identifier.urihttp://hdl.handle.net/2263/67430
dc.language.isoenen_ZA
dc.publisherElsevieren_ZA
dc.rights© 2017 Published by Elsevier B.V. Notice : this is the author’s version of a work that was accepted for publication in Physica B: Consensed Matter. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Physica B: Consensed Matter, vol. 535, pp. 175-180, 2018. doi : 10.1016/j.physb.2017.07.030.en_ZA
dc.subjectZnO nanostructuresen_ZA
dc.subjectSurface morphologyen_ZA
dc.subjectOptical propertiesen_ZA
dc.subjectElectrical characterizationen_ZA
dc.subjectTransport mechanismen_ZA
dc.subjectZinc oxide (ZnO)en_ZA
dc.subjectPhotovoltaic performanceen_ZA
dc.subjectSolar cellsen_ZA
dc.subjectNanorodsen_ZA
dc.subjectHeterojunctionen_ZA
dc.subjectLuminescenceen_ZA
dc.subjectTemperatureen_ZA
dc.subjectExtractionen_ZA
dc.subjectChemical bath deposition (CBD)en_ZA
dc.titleEffects of surface morphology on the optical and electrical properties of Schottky diodes of CBD deposited ZnO nanostructuresen_ZA
dc.typePostprint Articleen_ZA

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