Through-space hopping transport in an iodine-doped perylene-based Metal-Organic Framework
authors Gonçalo Valente, María Esteve-Rochina, Ana Paracana, Antonio Rodríguez Diéguez, Duane Choquesillo-Lazarte, Enrique Orti, Joaquin Calbo, Marina Ilkaeva, Luis Mafra, Miguel Rodriguez, Joao Rocha, Helena Alves and Manuel Souto
nationality International
journal Molecular Systems Design & Engineering
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 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 upon perylene radical cation formation. This study opens the way for the design of conductive MOFs based on perylene building blocks.
year published 2022
digital object identifier (doi) 10.1039/D2ME00108J
link https://doi.org/10.1039/D2ME00108J
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journal impact factor 3.323
5 year journal impact factor 3.251
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