High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

Advanced Materials 2026 Open access

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Authors: Joaquín Almarza, Karol Strutyński, Shuai Fu, Y Chen, Natalia M. Padial, Isabel del Barrio Gómez, Carlos Martí‐Gastaldo, Andrei N. Khlobystov, M. Bonn, Hai I. Wang, Manuel Melle‐Franco, Aurelio Mateo‐Alonso
DOI: 10.1002/adma.202517211
Cited by: 6
References: 27

Abstract

ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials. Covalent organic frameworks (COFs), which uniquely integrate these key structural and electronic features, have emerged as a promising platform for the development of novel electrically conductive organic materials. Intraframework π‐conjugation has shown to play a key role in improving charge carrier mobility. Here, we report Joa‐COF‐2 , a 3D COF lacking extended intraframework π‐conjugation, yet exhibiting a remarkable charge carrier mobility of 14 ± 1 cm 2 V −1 s −1 . Joa‐COF‐2 adopts an 11‐fold interpenetrated dia topology, featuring a tight interframework π–π stacking, which enables efficient charge transport in the absence of intraframework π‐conjugation.

Fields of Study & Subjects

Covalent Organic Framework Applications Surface Chemistry and Catalysis Advanced Photocatalysis Techniques

Publication details

Journal / source
Advanced Materials
Publisher
Wiley
Volume
38
Issue
51
Pages
e17211–e17211
Publication date
3 February 2026
Language
EN