title: An electrically switchable metal-organic framework.
abstract: 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 = 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.affiliation: Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Fernandez
authors.affiliation: Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
authors.forename: Paul C
authors.initials: PC
authors.lastname: Martin
authors.affiliation: Fundamental &Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
authors.forename: Todd
authors.initials: T
authors.lastname: Schaef
authors.affiliation: Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
authors.forename: Mark E
authors.initials: ME
authors.lastname: Bowden
authors.affiliation: Fundamental &Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
authors.forename: Praveen K
authors.initials: PK
authors.lastname: Thallapally
authors.affiliation: Fundamental &Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
authors.forename: Liem
authors.initials: L
authors.lastname: Dang
authors.affiliation: Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
authors.forename: Wu
authors.initials: W
authors.lastname: Xu
authors.affiliation: Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
authors.forename: Xilin
authors.initials: X
authors.lastname: Chen
authors.affiliation: Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA.
authors.forename: B Peter
authors.initials: BP
authors.lastname: McGrail