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Content Provider | IET Digital Library |
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Author | Negintaji, Zohreh Mortezaali, Abdollah Jahromi, Amin Torabi Yousefi, Elham |
Abstract | Zinc oxide (ZnO) micro and nanostructures were synthesised on a quartz substrate by the carbothermal evaporation method. The thin layers of gold were used as a catalyst and syntheses were carried out at different persistence time. Characterisation of the layer was conducted in order to study the effect of persistence time on morphology and crystal structure and optical properties of the fabricated ZnO nanostructures. The samples were characterised by scanning electron microscopy, X-ray diffraction (XRD) and UV–vis spectrophotometry which were performed to investigate the optical properties of the fabricated ZnO layer. The XRD spectrum clearly shows that the structure is in a hexagonal wurtzite phase. Optical properties of ZnO micro and nanostructures were evaluated from transmittance data using the method proposed by Swanepoel (in the regions λ = 200–900 nm). The study’s results indicate that increasing the persistence time as well as decreasing the size of ZnO nanostructures enhances the optical bandgap to about 3.46 eV. To the best of this work's knowledge, this is the first report on the study of the correlation of optical properties obtained by Swanepoel method and morphology of ZnO nanostructures. |
Starting Page | 412 |
Ending Page | 415 |
Page Count | 4 |
Volume Number | 14 |
e-ISSN | 17500443 |
Issue Number | Issue 4, Apr (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/mnl/14/4 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/mnl.2018.5440 |
Journal | Micro & Nano Letters |
Publisher Date | 2019-04-03 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Au Catalyst Carbothermal Evaporation Method Condensed Matter Crystal Structure Energy Gap Fabricated ZnO Layer Fabricated ZnO Nanostructure II-VI And III-V SemiConductor II-VI SemiConductor Morphology Nanofabrication Nanometre-Scale Semiconductor Fabrication Technology NanoParticle Nanostructured Material Nanotube And Nanostructured Material Optical Bandgap Optical Constants Optical Constants And Parameter Optical Property Optical Property of II-VI And III-V SemiConductor Quartz Substrate Scanning Electron Microscopy Spectrophotometry Structure of Solid Clusters Swanepoel Method Ultraviolet Spectra UV-vis Spectrophotometry Visible And Ultraviolet Spectra of II-VI And III-V SemiConductor Visible Spectra Wide Band Gap SemiConductor X-Ray Diffraction Zinc Compound Zno ZnO Microstructure |
Content Type | Text |
Resource Type | Article |
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