Nanocolumnar CdS thin films grown by glancing angle deposition from a sublimate vapor effusion source
| Autor: | R. Castro-Rodríguez, Ignacio Pérez-Quintana, Marco Cirerol-Carrillo, J. A. Mendez-Gamboa, A. Iribarren, Enrique Adrián Martín-Tovar, L.G. Daza, R. A. Medina-Esquivel |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Band gap Scanning electron microscope business.industry General Engineering Analytical chemistry 02 engineering and technology Substrate (electronics) 021001 nanoscience & nanotechnology 01 natural sciences Cadmium sulfide Indium tin oxide chemistry.chemical_compound Optics chemistry 0103 physical sciences Deposition (phase transition) Crystallite Thin film 0210 nano-technology business |
| Zdroj: | Journal of Applied Research and Technology. 15:271-277 |
| ISSN: | 1665-6423 |
| DOI: | 10.1016/j.jart.2017.02.003 |
| Popis: | The glancing angle Deposition (GLAD) technique was used to grow cadmium sulfide (CdS) thin films on glass and indium tin oxide (ITO) coated glass substrates from a sublimate vapor effusion source. The samples were prepared under different incident deposition flux angles (a) of 0°, 20° and 80°, while both the substrate and the source were under rotation. The temperature of the source was 923.15 K. Scanning electron microscopy images showed that the GLAD method combined with the source produced dense nanocolumnar shaped structures with height and diameters of ~200 and ~30 nm respectively. The deposited films showed a hexagonal structure with preferential (002) plane orientation and crystallites sizes between ~25 nm and ~35 nm. A maximum solar weighted transmission of ~92% was obtained for the sample prepared at a =80°, with a substrate/source rotation velocity ratio of 55/20 in the wavelength region of 400-900 nm. The average band gap energy of the films was 2.42 eV. Refractive indexes between ~1.4 and ~2.4 at a 550 nm the wavelength were also obtained. |
| Databáze: | OpenAIRE |
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