Self-Suspended Nanomesh Scaffold for Ultrafast Flexible Photodetectors Based on Organic Semiconducting Crystals

Accès libre Peer reviewed | |
---|---|
Version acceptée pour publication (post-print auteur) | |
Paternité - Pas d'utilisation commerciale [CC] [BY] [NC] | |
Auteurs |
Lei Zhang Nadiia Pasthukova Yifan Yao Xiaolan Zhong Egon Pavlica Gvido Bratina Emanuele Orgiu Paolo Samorì |
Unité de recherche du site |
Institut de Science et d'Ingénierie Supramoléculaires - ISIS - UMR7006 |
Langue |
en |
Volume |
30 |
Numéro |
28 |
Page de début |
1801181 |
Date de première publication |
2018-05-21 |
Date de parution |
2018-07-12 |
ISSN |
09359648 |
Titre de la source (revue, livre…) |
Advanced Materials |
Résumé |
Self‐standing nanostructures are of fundamental interest in materials science and nanoscience and are widely used in (opto‐)electronic and photonic devices as well as in micro‐electromechanical systems. To date, large‐area and self‐standing Show moreSelf‐standing nanostructures are of fundamental interest in materials science and nanoscience and are widely used in (opto‐)electronic and photonic devices as well as in micro‐electromechanical systems. To date, large‐area and self‐standing nanoelectrode arrays assembled on flexible substrates have not been reported. Here the fabrication of a hollow nanomesh scaffold on glass and plastic substrates with a large surface area over 1 mm2 and ultralow leakage current density (≈1–10 pA mm−2 @ 2 V) across the empty scaffold is demonstrated. Thanks to the continuous sub‐micrometer space formed in between the nanomesh and the bottom electrode, highly crystalline and dendritic domains of 6,13‐bis(triisopropylsilylethinyl)pentacene growing within the hollow cavity can be observed. The high degree of order at the supramolecular level leads to efficient charge and exciton transport; the photovoltaic detector supported on flexible polyethylene terephthalate substrates exhibits an ultrafast photoresponse time as short as 8 ns and a signal‐to‐noise ratio approaching 10^5. Such a hollow scaffold holds great potential as a novel device architecture toward flexible (opto‐)electronic applications based on self‐assembled micro/nanocrystals. Show less |
DOI | 10.1002/adma.201801181 |
Éditeur |
Wiley |
URL éditeur |
https://doi.org/10.1002/adma.201801181 |
Titre abrégé de la source |
Adv. Mater. |
Type de publication |
ACL |
Projet(s) de recherche ANR |
Labex projects CSC (ANR-10-LABX-0026 CSC) and NIE (ANR-11-LABX-0058 NIE) within the Investissement d’Avenir program ANR-10-IDEX-0002-02 |
Projet(s) de recherche européen(s) |
EC/H2020/642196///iSwitch |
Topic |
Chimie/Matériaux |
Mots-clés |
nanofabrication |
PMID | 29782659 |
Unité de recherche extérieure au site |
Laboratory of Organic Matter Physics University of Nova Gorica |
Fonction |
crp |
Identifiant ORCID |
0000-0001-6256-8281 |
Identifiant idREF |
185523617 19105190X |
Audience |
International |
URL | https://univoak.eu/islandora/object/islandora:71165 |