Ultrafast and Highly Sensitive Chemically Functionalized Graphene Oxide-Based Humidity Sensors: Harnessing Device Performances via the Supramolecular Approach
| Accès libre Peer reviewed | |
|---|---|
| Version acceptée pour publication (post-print auteur) | |
Paternité - Pas d'utilisation commerciale [CC] [BY] [NC]  |
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| Auteurs |
Cosimo Anichini Alessandro Aliprandi Sai Manoj Gali Fabiola Liscio Vittorio Morandi Andrea Minoia David Beljonne Artur Ciesielski Paolo Samori |
| Unité de recherche du site |
Institut de Science et d'Ingénierie Supramoléculaires - ISIS - UMR7006 |
| Langue |
en |
| Volume |
12 |
| Numéro |
39 |
| Page de début |
44017 |
| Page de fin |
44025 |
| Date de première publication |
2020-09-03 |
| ISSN |
1944-8244 |
| Titre de la source (revue, livre…) |
ACS Applied Materials & Interfaces |
| Résumé |
Humidity sensors have been gaining increasing attention because of their relevance for well-being. To meet the ever-growing demand for new cost-efficient materials with superior performances, graphene oxide (GO)-based relative humidity sensors have Show moreHumidity sensors have been gaining increasing attention because of their relevance for well-being. To meet the ever-growing demand for new cost-efficient materials with superior performances, graphene oxide (GO)-based relative humidity sensors have emerged recently as low-cost and highly sensitive devices. However, current GO-based sensors suffer from important drawbacks including slow response and recovery, as well as poor stability. Interestingly, reduced GO (rGO) exhibits higher stability, yet accompanied by a lower sensitivity to humidity due to its hydrophobic nature. With the aim of improving the sensing performances of rGO, here we report on a novel generation of humidity sensors based on a simple chemical modification of rGO with hydrophilic moieties, i.e., triethylene glycol chains. Such a hybrid material exhibits an outstandingly improved sensing performance compared to pristine rGO such as high sensitivity (31% increase in electrical resistance when humidity is shifted from 2 to 97%), an ultrafast response (25 ms) and recovery in the subsecond timescale, low hysteresis (1.1%), excellent repeatability and stability, as well as high selectivity toward moisture. Such highest-key-performance indicators demonstrate the full potential of two-dimensional (2D) materials when decorated with suitably designed supramolecular receptors to develop the next generation of chemical sensors of any analyte of interest. Show less |
| DOI | 10.1021/acsami.0c11236 |
| Titre abrégé de la source |
ACS Appl. Mater. Interfaces |
| Type de publication |
article |
| Type de publication |
ACL |
| Projet(s) de recherche ANR |
ANR-10-LABX- 0026 CSC |
| Projet(s) de recherche européen(s) |
EC/H2020/833707//SUPRA2DMAT// |
| Topic |
Chimie/Matériaux |
| Unité de recherche extérieure au site |
CMN, Université de Mons, Place du Parc 20, 7000 Mons, Belgium |
| Fonction |
aut |
| Identifiant idREF |
191442089 151349363 109288335 |
| Audience |
International |
| Envoyer vers HAL |
5 |
| URL | https://univoak.eu/islandora/object/islandora:102001 |