Near IR Bandgap Semiconducting 2D Conjugated Metal-Organic Framework with Rhombic Lattice and High Mobility
Research output: Contribution to journal › Research article › Contributed › peer-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 language | English |
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Article number | e202300186 |
Number of pages | 8 |
Journal | Angewandte Chemie - International Edition |
Volume | 62 |
Issue number | 25 |
Early online date | 2 Mar 2023 |
Publication status | Published - 19 Jun 2023 |
Peer-reviewed | Yes |
External IDs
WOS | 000985073400001 |
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Mendeley | 7b57b2cc-c872-3036-b748-a666873f6fb2 |
Scopus | 85160584750 |
Keywords
Keywords
- 2D Conjugated MOFs, Coordination Polymers, High Mobility, Semiconductors, Single Crystals