Hybrid Copper-Nanowire–Reduced-Graphene-Oxide Coatings: A “Green Solution” Toward Highly Transparent, Highly Conductive, and Flexible Electrodes for (Opto)Electronics

ALIPRANDI, Alessandro, MOREIRA, Tiago, ANICHINI, Cosimo, STOECKEL, Marc-antoine, EREDIA, Matilde, SASSI, Ugo, BRUNA, Matteo, PINHEIRO, Carlos, LAIA, César A. T., BONACCHI, Sara et SAMORI, Paolo, sans date. Hybrid Copper-Nanowire–Reduced-Graphene-Oxide Coatings: A “Green Solution” Toward Highly Transparent, Highly Conductive, and Flexible Electrodes for (Opto)Electronics. Advanced Materials [en ligne]. sans date. Vol. 29, n° 41pp. Art. n°1703225. [Consultésans date]. DOI 10.1002/adma.201703225. Consulté de : https://onlinelibrary-wiley-com.scd-rproxy.u-strasbg.fr/doi/10.1002/adma.201703225This study reports a novel green chemistry approach to assemble copper-nanowires/reduced-graphene-oxide hybrid coatings onto inorganic and organic supports. Such films are robust and combine sheet resistances (<30 Ω sq−1) and transparencies in the visible region (transmittance > 70%) that are rivalling those of indium–tin oxide. These electrodes are suitable for flexible electronic applications as they show a sheet resistance change of <4% after 10 000 bending cycles at a bending radius of 1.0 cm, when supported on polyethylene terephthalate foils. Significantly, the wet-chemistry method involves the preparation of dispersions in environmentally friendly solvents and avoids the use of harmful reagents. Such inks are processed at room temperature on a wide variety of surfaces by spray coating. As a proof-of-concept, this study demonstrates the successful use of such coatings as electrodes in high-performance electrochromic devices. The robustness of the electrodes is demonstrated by performing several tens of thousands of cycles of device operation. These unique conducting coatings hold potential for being exploited as transparent electrodes in numerous optoelectronic applications such as solar cells, light-emitting diodes, and displays.1. .
Accès libre Peer reviewed
Version acceptée pour publication (post-print auteur)
Paternité - Pas d'utilisation commerciale [CC] [BY] [NC]
Auteurs Alessandro Aliprandi
Tiago Moreira
Cosimo Anichini
Marc-antoine Stoeckel
Matilde Eredia
Ugo Sassi
Matteo Bruna
Carlos Pinheiro
César A. T. Laia
Sara Bonacchi
Paolo Samori
Unité de recherche du site

Institut de Science et d'Ingénierie Supramoléculaires - ISIS - UMR7006
URL éditeur https://onlinelibrary-wiley-com.scd-rproxy.u-strasbg.fr/doi/10.1002/adma.201703225
Langue

en
Volume

29
Numéro

41
Page de début

Art. n°1703225
Date de première publication

2017-09-13
ISSN

09359648
Titre de la source (revue, livre…)

Advanced Materials
Résumé

This study reports a novel green chemistry approach to assemble copper-nanowires/reduced-graphene-oxide hybrid coatings onto inorganic and organic supports. Such films are robust and combine sheet resistances (<30 Ω sq−1) and transparencies in the
Show moreThis study reports a novel green chemistry approach to assemble copper-nanowires/reduced-graphene-oxide hybrid coatings onto inorganic and organic supports. Such films are robust and combine sheet resistances (<30 Ω sq−1) and transparencies in the visible region (transmittance > 70%) that are rivalling those of indium–tin oxide. These electrodes are suitable for flexible electronic applications as they show a sheet resistance change of <4% after 10 000 bending cycles at a bending radius of 1.0 cm, when supported on polyethylene terephthalate foils. Significantly, the wet-chemistry method involves the preparation of dispersions in environmentally friendly solvents and avoids the use of harmful reagents. Such inks are processed at room temperature on a wide variety of surfaces by spray coating. As a proof-of-concept, this study demonstrates the successful use of such coatings as electrodes in high-performance electrochromic devices. The robustness of the electrodes is demonstrated by performing several tens of thousands of cycles of device operation. These unique conducting coatings hold potential for being exploited as transparent electrodes in numerous optoelectronic applications such as solar cells, light-emitting diodes, and displays.
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DOI 10.1002/adma.201703225
Éditeur

Wiley-VCH Verlag
Titre abrégé de la source

Adv. Mater.
Type de publication

ACL
Projet(s) de recherche ANR

LabEx CSC (ANR‐10‐LABX‐0026_CSC)
Projet(s) de recherche européen(s)

FP7‐NMP‐2012‐SMALL‐6 “SACS”
Domaine

Chimie/Matériaux
Mots-clés

copper nanowires ; electrochromic device ; flexible electronics ; graphene ; transparent conductor
PMID 28901581
Unité de recherche extérieure au site

REQUIMTE; Departamento de Química; Faculdade de Ciências e Tecnologia; Universidade Nova de Lisboa; 2829-516 Caparica Portugal
Nokia Bell Labs; Broers Building; Cambridge CB3 0FA UK
Ynvisible; Rua Mouzinho de Albuquerque 7; 2070-104 Cartaxo Portugal
Fonction

aut
crp
Identifiant ORCID 0000-0001-6256-8281
Audience

International