Near IR Bandgap Semiconducting 2D Conjugated Metal-Organic Framework with Rhombic Lattice and High Mobility

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

Two-dimensional conjugated metal–organic frameworks (2D c-MOFs) are emerging as a unique class of electronic materials. However, 2D c-MOFs with band gaps in the Vis-NIR and high charge carrier mobility are rare. Most of the reported conducting 2D c-MOFs are metallic (i.e. gapless), which largely limits their use in logic devices. Herein, we design a phenanthrotriphenylene-based, D 2h-symmetric π-extended ligand (OHPTP), and synthesize the first rhombic 2D c-MOF single crystals (Cu 2(OHPTP)). The continuous rotation electron diffraction (cRED) analysis unveils the orthorhombic crystal structure at the atomic level with a unique slipped AA stacking. The Cu 2(OHPTP) is a p-type semiconductor with an indirect band gap of ≈0.50 eV and exhibits high electrical conductivity of 0.10 S cm −1 and high charge carrier mobility of ≈10.0 cm 2 V −1 s −1. Theoretical calculations underline the predominant role of the out-of-plane charge transport in this semiquinone-based 2D c-MOF.

Details

Original languageEnglish
Article numbere202300186
Number of pages8
JournalAngewandte Chemie - International Edition
Volume62
Issue number25
Early online date2 Mar 2023
Publication statusPublished - 19 Jun 2023
Peer-reviewedYes

External IDs

WOS 000985073400001
Mendeley 7b57b2cc-c872-3036-b748-a666873f6fb2
Scopus 85160584750

Keywords

Keywords

  • 2D Conjugated MOFs, Coordination Polymers, High Mobility, Semiconductors, Single Crystals