Tunable electrical conductivity in metal-organic framework thin film devices

Patent metadata

Field	Value
Publication number	US-2016229873-A1
Application number	US-201615132038-A
Country	US
Kind code	A1
Filing date	Apr 18, 2016
Priority date	Aug 28, 2013
Publication date	Aug 11, 2016
Grant date	—

Abstract

A composition including a porous metal organic framework (MOF) including an open metal site and a guest species capable of charge transfer that can coordinate with the open metal site, wherein the composition is electrically conductive. A method including infiltrating a porous metal organic framework (MOF) including an open metal site with a guest species that is capable of charge transfer; and coordinating the guest species to the open metal site to form a composition including an electrical conductivity greater than an electrical conductivity of the MOF.

First claim

What is claimed is:

1 . A method comprising:
infiltrating a porous metal organic framework (MOF) comprising an open metal site, wherein the MOF comprises a plurality of metal ions or metal clusters and a plurality of organic ligands, with a guest species that is capable of charge transfer, wherein the guest species is located within a pore of the MOF; and coordinating the guest species to the open metal site to form a composition comprising an electrical conductivity greater than an electrical conductivity of the MOF.

2 . The method of claim 1 , wherein infiltrating comprises exposing the MOF to the guest species for a period of time.

3 . The method of claim 2 , wherein an electrical conductivity of the composition is related to the exposure time.

4 . The method of claim 1 , wherein the MOF comprises copper.

5 . The method of claim 4 , wherein the MOF comprises Cu 3 (BTC) 2 .

6 . The method of claim 4 , wherein the guest species comprises a nitrile moiety, a thiol moiety, or a carbonyl moiety.

7 . The method of claim 4 , wherein the guest species comprises 7,7,8,8-tetracyanoquinododimethane.

8 . The method of claim 5 , wherein the guest species comprises 7,7,8,8-tetracyanoquinododimethane.

9 . The method of claim 1 , wherein the guest species is selected from the group consisting of a nitrile moiety, a thiol moiety, a carbonyl moiety, a thiolate moiety, an amine moiety, an imine moiety, a hydroxyl moiety, or a mixture thereof.

10 . The method of claim 1 , wherein the guest species is selected from the group consisting of a thiophene, a dithiopene, a tetrathiafulvalene, an imidazole, a triazole, a tetrazole, or a derivative thereof or a transition metal complex operable to undergo an outer sphere electron transfer.

Assignees

• Sandia Corp

Inventors

• Talin Albert Alec
• Allendorf Mark D
• STAVILA Vitalie
• Leonard Francois

Classifications

• C07F1/08 Primary

  Copper compounds · CPC title

• B01J20/223 Primary

  containing metals, e.g. organo-metallic compounds, coordination complexes · CPC title

• B01J20/226

  Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF] (preparation of metal complexes containing carboxylic acid moieties C07C51/418; MOF's per se C07F) · CPC title

• B01J31/16

  containing coordination complexes · CPC title

• B01J31/1691

  Coordination polymers, e.g. metal-organic frameworks [MOF] (preparation of metal complexes containing carboxylic acid moieties C07C51/418; MOF's per se C07F) · CPC title