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Chem Soc Rev. 2020 Feb 10;49(3):839-864. doi: 10.1039/c9cs00807a.

The luminescent and photophysical properties of covalent organic frameworks.

Chemical Society reviews

W Karl Haug, Erica M Moscarello, Eric R Wolfson, Psaras L McGrier

Affiliations

  1. Department of Chemistry & Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA. [email protected].

PMID: 31957763 DOI: 10.1039/c9cs00807a

Abstract

Covalent organic frameworks (COFs) are an emerging class of crystalline porous polymers that have attracted significant attention due to their tunable properties and structural robustness. As a result, COFs with luminescent properties are of great interest for fields such as chemical sensing, solid-state light emitters, photocatalysis, and optoelectronics. However, the bottom-up synthesis of luminescent COF systems remains a challenge in the field due to an abundance of competing non-radiative pathways, including phenomena such as aggregate caused quenching (ACQ). To overcome these obstacles, there has been a burgeoning investigation into the luminescent and photophysical properties of COFs. This review will highlight methods used to fabricate luminescent COFs and discuss the factors that are critical for their production. A collection of known luminescent COF systems will be featured. In addition, the ability to utilize the photophysical properties of COFs for applications related to photocatalysis, solid-state light emitters, and chemical sensing will be addressed. An outlook will address the current progress and remaining challenges facing the field to ultimately expand the scope of their applications.

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