Semiconducting Paramagnetic Covalent Organic Frameworks as a New Class of Organic Electronics and Spintronic Materials
Abstract
Semiconducting Paramagnetic Covalent Organic Frameworks as a New Class of Organic Electronics and Spintronic Materials Two-dimensional covalent organic frameworks (2D COFs) are structurally precise, all-organic porous networks with well-defined geometries. The use of these frameworks to assemble regular arrays of redox-active functionalities with well-defined topologies and at well-defined distances from one another is attractive for electronic and potentially spintronic applications. However, electrical conductivities examined to date have generally been rather small, in our opinion due to: a combination of the specific COF chemistries employed; limited use of doping, mostly using only one dopant (I2); and poor sample quality. The objective in this proposal is to better understand structure-property-sample-quality relations for electrically doped semiconducting COFs, focusing on electrical conductivity, but with an eye to other coupled properties. Our specific objectives are to: ? Employ a wide range of different dopant materials and doping methods; ? Explore the effects of a wider range of building blocks and linking chemistry on in- or out-of-plane conductivity, and on stability, of doped 2D COFs; ? Understand the effects of 2D COF sample quality and morphology; ? Understand the origins and generality of dopant-ion dependent electrical properties observed in some doped COFs that we have studied to date; ? Through collaboration, examine the suitability of selected materials developed in the program for spintronics.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 09, 2023
- Source ID
- W911NF2310306
Entities
People
- William Dichtel
Organizations
- Army Contracting Command
- Northwestern University
- United States Army