Two-Dimensional Chemiresistive Covalent Organic Framework with High Intrinsic Conductivity

This paper describes the synthesis of a novel intrinsically conductive two-dimensional (2D) covalent organic framework (COF) through the aromatic annulation of 2,3,9,10,16,17,23,24-octa-aminophthalocyanine nickel(II) and pyrene-4,5,9,10-tetraone. The intrinsic bulk conductivity of the COF material (termed COF-DC-8) reached 2.51 × 10–3 S/m, and increased by 3 orders of magnitude with I2 doping. Electronic calculations revealed an anisotropic band structure, with the possibility for significant contribution from out-of-plane charge-transport to the intrinsic bulk conductivity. Upon integration into chemiresistive devices, this conductive COF showed excellent responses to various reducing and oxidizing gases,…

• AP
  Alfred P. Sloan Foundation

  Award: FG-2018-10561
• DC
  Dartmouth College
• AR
  Army Research Office

  Award: W911NF-17-1-0398
• OO
  Office of Experimental Program to Stimulate Competitive Research

  Award: 1757371