Formation of antireflection Zn/ZnO core-shell nano-pyramidal arrays by O-2(+) ion bombardment of Zn surfaces

25 agosto, 2017 -

Noelia Benito(a), Gonzalo Recio-Sánchez(b), Ramón Escobar-Galindo(c) y Carlos Palacio(a)


(a) Departamento de Física Aplicada, Facultad de Ciencias, Módulo 12. Universidad Autónoma de Madrid, Cantoblanco, 28049-Madrid, Spain.
(b) Núcleo de Bioproductos y Materiales Avanzados, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco, Chile.
(c) Instituto de Ciencia de Materiales de Madrid (ICMM(CSIC)), Cantoblanco, 28049-Madrid, Spain.


NANOSCALE
Volumen: 9 Páginas: 14201-14207
DOI: https://doi.org/10.1039/C7NR03691D
Fecha de publicación: 25 de Agosto de 2017


Abstract

ZnO is probably one of the most studied oxides since ZnO nanostructures are a very rich family of nanomaterials with a broad variety of technological applications. Although several chemical techniques offer the possibility to obtain such ZnO nanostructures, here we show that the controlled modification of the zinc surface by low-energy O2+ bombardment leads to the formation of core–shell Zn/ZnO nano-pyramidal arrays that suppress the reflection of light decreasing the reflectivity below 6% in the wavelength range of 300–900 nm. This controlled and scalable protocol opens the door to a broad range of possibilities for the use of ion bombardment to produce surface modifications for technological applications in the field of photoelectric devices and solar cells.


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