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Title: An Electrically Switchable Metal-Organic Framework

Crystalline metal organic framework (MOF) materials containing interconnected porosity can be chemically modified to promote stimulus-driven (light, magnetic or electric fields) structural transformations that can be used in a number of devices. Innovative research strategies are now focused on understanding the role of chemical bond manipulation to reversibly alter the free volume in such structures of critical importance for electro-catalysis, molecular electronics, energy storage technologies, sensor devices and smart membranes. In this letter, we study the mechanism for which an electrically switchable MOF composed of Cu(TCNQ) (TCNQ 5 7,7,8,8-tetracyanoquinodimethane) transitions from a high-resistance state to a conducting state in a reversible fashion by an applied potential. The actual mechanism for this reversible electrical switching is still not understood even though a number of reports are available describing the application of electric-field-induced switching of Cu(TCNQ) in device fabrication.
Authors:
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Publication Date:
OSTI Identifier:
1170459
Report Number(s):
PNNL-SA-105621
47743
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Scientific Reports, 12(3):Article No. 6114
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
ENERGY; CRYSTALS; CAPTURE; SALTS Metal Organic Framework (MOF); electrical; switchable; energy; IONIC PHASE-TRANSITION; TETRATHIAFULVALENE-CHLORANIL; SPIN-CROSSOVER; COMPLEX; (EDO-TTF)(2)PF6; CU(TCNQ); CRYSTAL; CAPTURE; ENERGY; SALTS; Environmental Molecular Sciences Laboratory