High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks
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.
Article Details
Authors (12)
Joaquín Almarza
POLYMAT University of the Basque Country UPV/EHU Avenida de Tolosa 72 Donostia‐San Sebastián 20018 Spain
Karol Strutyński
CICECO−Aveiro Institute of Materials, Department of Chemistry
Shuai Fu
Center for Advancing Electronics Dresden and Faculty of Chemistry and Food Chemistry
Yifan Chen
Natalia M. Padial
Functional Inorganic Materials Team, Instituto de Ciencia Molecular (ICMol)
Isabel del Barrio Gómez
POLYMAT Department of Applied Chemistry University of the Basque Country UPV/EHU Donostia‐San Sebastián Spain
Carlos Martí‐Gastaldo
Instituto de Ciencia Molecular Universidad de Valencia Paterna 46980 Spain
Andrei N. Khlobystov
School of Chemistry
Mischa Bonn
Hai I. Wang
Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
Manuel Melle‐Franco
Department of Chemistry, CICECO‐Aveiro Institute of Materials University of Aveiro Aveiro Portugal
Aurelio Mateo‐Alonso
POLYMAT, Department of Applied Chemistry University of Basque Country (EHU) Donostia‐San Sebastián Spain