Issue 9, 2022

Through-space hopping transport in an iodine-doped perylene-based metal–organic framework

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.

Graphical abstract: Through-space hopping transport in an iodine-doped perylene-based metal–organic framework

Supplementary files

Article information

Article type
Paper
Submitted
08 6 2022
Accepted
01 7 2022
First published
04 7 2022
This article is Open Access
Creative Commons BY license

Mol. Syst. Des. Eng., 2022,7, 1065-1072

Through-space hopping transport in an iodine-doped perylene-based metal–organic framework

G. Valente, M. Esteve-Rochina, A. Paracana, A. Rodríguez-Diéguez, D. Choquesillo-Lazarte, E. Ortí, J. Calbo, M. Ilkaeva, L. Mafra, M. A. Hernández-Rodríguez, J. Rocha, H. Alves and M. Souto, Mol. Syst. Des. Eng., 2022, 7, 1065 DOI: 10.1039/D2ME00108J

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