Electron delocalization and charge mobility as a function of reduction in a metal-organic framework
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Fecha
2018-07
Profesor/a Guía
Facultad/escuela
Idioma
en
Título de la revista
ISSN de la revista
Título del volumen
Editor
Nature Publishing Group
Nombre de Curso
Licencia CC
CC BY 4.0
Publisher's Bespoke License
Licencia CC
Resumen
Conductive metal-organic frameworks are an emerging class of three-dimensional architectures with degrees of modularity, synthetic flexibility and structural predictability that are unprecedented in other porous materials. However, engendering long-range charge delocalization and establishing synthetic strategies that are broadly applicable to the diverse range of structures encountered for this class of materials remain challenging. Here, we report the synthesis of K x Fe2(BDP)3 (0 ≤ x ≤ 2; BDP2- = 1,4-benzenedipyrazolate), which exhibits full charge delocalization within the parent framework and charge mobilities comparable to technologically relevant polymers and ceramics. Through a battery of spectroscopic methods, computational techniques and single-microcrystal field-effect transistor measurements, we demonstrate that fractional reduction of Fe2(BDP)3 results in a metal-organic framework that displays a nearly 10,000-fold enhancement in conductivity along a single crystallographic axis. The attainment of such properties in a K x Fe2(BDP)3 field-effect transistor represents the realization of a general synthetic strategy for the creation of new porous conductor-based devices. © 2018 The Author(s).
Notas
Indexación Scopus
Palabras clave
Metal-Organic Frameworks, Coordination Polymer, Quantum Hall Effect, Conductive materials, Spectroscopic analysis
Citación
Nature Materials Volume 17, Issue 7, Pages 625 - 6321 July 2018
DOI
10.1038/s41563-018-0098-1