eprintid: 10064491
rev_number: 24
eprint_status: archive
userid: 608
dir: disk0/10/06/44/91
datestamp: 2018-12-19 13:30:14
lastmod: 2021-12-20 00:53:30
status_changed: 2019-11-25 12:19:21
type: article
metadata_visibility: show
creators_name: Alvarez Fernandez, A
creators_name: Aissou, K
creators_name: Pécastaings, G
creators_name: Hadziioannou, G
creators_name: Fleury, G
creators_name: Ponsinet, V
title: High refractive index in low metal content nanoplasmonic surfaces from self-assembled block copolymer thin films
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F43
note: © Royal Society of Chemistry 2018. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (https://creativecommons.org/licenses/by/3.0/).
abstract: Materials with a high and tunable refractive index are attractive for nanophotonic applications. In this contribution, we propose a straightforward fabrication technique of high-refractive index surfaces based on self-assembled nanostructured block copolymer thin films. The selective and customizable metal incorporation within out-of-plane polymer lamellae produces azimuthally isotropic metallic nanostructures of defined geometries, which were analysed using microscopy and small-angle X-ray scattering techniques. Variable-angle spectroscopic ellipsometry was used to relate the geometrical parameters of the metallic features and the resulting refractive index of the patterned surfaces. In particular, nanostructured gold patterns with a high degree of homogeneity and a gold content as low as 16 vol% reach a refractive index value of more than 3 in the visible domain. Our study thus demonstrates a new route for the preparation of high refractive index surfaces with a low metal content for optical applications.
date: 2018-11-22
date_type: published
official_url: http://doi.org/10.1039/C8NA00239H
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
article_type_text: Journal Article
verified: verified_manual
elements_id: 1613916
doi: 10.1039/C8NA00239H
lyricists_name: Alvarez Fernandez, Alberto
lyricists_id: AALVA03
actors_name: Alvarez Fernandez, Alberto
actors_id: AALVA03
actors_role: owner
full_text_status: public
publication: Nanoscale Advances
volume: 1
pagerange: 849-857
citation:        Alvarez Fernandez, A;    Aissou, K;    Pécastaings, G;    Hadziioannou, G;    Fleury, G;    Ponsinet, V;      (2018)    High refractive index in low metal content nanoplasmonic surfaces from self-assembled block copolymer thin films.                   Nanoscale Advances , 1    pp. 849-857.    10.1039/C8NA00239H <https://doi.org/10.1039/C8NA00239H>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10064491/1/Alvarez%20Fernandez_High%20refractive%20index%20in%20low%20metal%20content%20nanoplasmonic%20surfaces%20from%20self-assembled%20block%20copolymer%20thin%20films_VoR.pdf