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Title: Through-space hopping transport in an iodine-doped perylene-based metal–organic framework
Author: Valente, Gonçalo
Esteve-Rochina, María
Paracana, Ana
Rodríguez-Diéguez, Antonio
Choquesillo-Lazarte, Duane
Ortí, Enrique
Calbo, Joaquín
Ilkaeva, Marina
Mafra, Luís
Hernández-Rodríguez, Miguel A.
Rocha, João
Alves, Helena
Souto, Manuel
Issue Date: Jul-2022
Publisher: Royal Society of Chemistry
Abstract: Electrically conductive metal-organic frameworks (MOFs) have emerged in the past few years as promising materials towards applications in (opto)electronics, electrocatalysis and energy storage, among others. One of the most common strategies for the design of conductive MOFs is based on the use of electroactive organic ligands and their partial oxidation/reduction to increase the number of charge carriers. Although perylene salts were reported as the first molecular conductors, they have been scarcely explored as building blocks for the construction of conductive MOFs. Herein we report the electrical conductivity enhancement of a microporous perylene-based MOF upon partial ligand oxidation by using two-probe single-crystal devices. The origin of the conductivity enhancement is rationalised by means of spectroscopic studies and quantum-chemical calculations, supporting a through-space hopping transport along the herringbone perylene packing. This study opens the way for the design of conductive MOFs based on perylene building blocks.
Peer review: yes
DOI: 10.1039/D2ME00108J
ISSN: 2058-9689
Appears in Collections:CICECO - Artigos
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