| Revista: | Superficies y vacío |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000377929 |
| ISSN: | 1665-3521 |
| Autores: | Meléndrez, M. F1 Vargas Hernández, C2 |
| Instituciones: | 1Universidad de Concepción, Facultad de Ingeniería, Concepción. Chile 2Universidad Nacional de Colombia, Departamento de Física y Química, Manizales, Caldas. Colombia |
| Año: | 2013 |
| Periodo: | Sep |
| Volumen: | 26 |
| Número: | 3 |
| Paginación: | 100-106 |
| País: | México |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Small hexagonal-shaped ZnO Nanorods (ZnO-NRs) were synthesized on PET (Polyethylene terephthalate)/ITO substrates through a conventional wet chemical method assisted by ultrasound using Zn(NO3)2 and hexamethylenetetramine (HMT) as precursors. The reaction was carried out in three steps: i) ZnO seeds synthesis, ii) ZnO seeds deposition, and iii) ultrasound-assisted unidirectional growth of ZnO-NRs. Aligned ZnO-NRs were characterized by HRTEM, SAED, EF-SEM, UV-Vis and Raman spectroscopy; their lengths and thicknesses ranged 240 - 350 nm and 25 - 80 nm, respectively on PET/ITO substrates. Results indicated that ZnO-NRs were grown on a 200 nm thick ZnO rigid film formed by a dip-coating method which has brittle nature. It could hinder the use of these substrates in the construction of flexible devices. ZnO-NRs/(PET/ITO) transmits a UV-Vis radiation between 50% and 80%, whose variation depends on the synthesis conditions. Optical band-gap of the synthesized material approximately 3.3 eV is independent on the Nanorods' dimensions. Experimental and structural details are also discussed in this work |
| Disciplinas: | Ingeniería |
| Palabras clave: | Ingeniería de materiales, Ingeniería química, Nanoestructuras, Oxido de zinc, Síntesis química, Ultrasonido |
| Keyword: | Engineering, Chemical engineering, Materials engineering, Nanostructures, Zinc oxide, Chemical synthesis, Ultrasound |
| Texto completo: | Texto completo (Ver HTML) |
