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IOP Publishing, Nanotechnology, 20(32), p. 205603, 2021

DOI: 10.1088/1361-6528/abe4fd

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Monolayer of silica nanospheres assembled onto ITO-coated glass substrates by spin-coating

Journal article published in 2021 by Thales Alves Faraco ORCID, H. da S. Barud, A. M. de Aguiar, Nathalia Akemi Yoshioka ORCID, Rafael Miguel Sábio ORCID, Hernane da S. Barud ORCID, Indhira Oliveira Maciel ORCID, Welber Gianini Quirino ORCID, Benjamin Fragneaud ORCID, Aruã Menezes de Aguiar ORCID, Sidney J. L. Ribeiro ORCID, Marco Cremona ORCID, Cristiano Legnani ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Abstract In this work, we synthesized colloidal silica nanospheres with an average size of 400 nm through the modified Stöber method and successfully fabricated an ordered close-packed silica nanosphere monolayer onto ITO-coated glass substrates using a three-step spin-coating method. ITO films showed resistivity comparable to that of commercial ITO and the silica nanosphere monolayer-coated ITO/glass substrate exhibited good optical transmittance in the visible (550 nm) and near-infrared (900 nm) regions of 62% and 82%, respectively. The results suggest that this monolayer can be used in optoelectronic devices to enhance efficiency in photovoltaic cells.