Artículo
Characterization of thin coatings based on ZnO for photonic applications
Fecha de publicación:
10/08/2019
Editorial:
Natl Inst Optoelectronics
Revista:
Journal Of Optoelectronics And Advanced Materials
ISSN:
1454-4164
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present a comparison between zinc oxide films made by sol-gel dip-coating and spray-pyrolysis to be employed in optoelectronic applications. Grain size, shape, roughness, thickness, band gap, composition, crystalline orientation, electrical resistivity, and optical guided modes were evaluated by AFM, SEM, EDS, optical transmittance, electrical resistance, and end-fire coupling method, respectively. From these results, it was determined that dip-coated film is thinner (with a thickness of about 130 nm) than the spray-pyrolysis one (of about 500 nm), whereas the former showed lower roughness and higher electrical resistivity. Furthermore, a 532 nm continuous laser was coupled across the sprayed film because of its greater thickness. We conclude that the studied techniques can be complementarily implemented to obtain high-performance coatings for photonic applications, combining the lower roughness of dip coating and the wider thickness of spray-pyrolysis films.
Palabras clave:
Sol-gel thin films
,
Dip-coating
,
Spray pyrolysis
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Articulos(IMBICE)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA CELULAR (I)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA CELULAR (I)
Citación
Suarez, Gustavo; Alvira, Fernando Carlos; Parra, Rodrigo; Tejerina, Matías Rubén; Characterization of thin coatings based on ZnO for photonic applications; Natl Inst Optoelectronics; Journal Of Optoelectronics And Advanced Materials; 13; 9-10; 10-8-2019; 535-538
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