- Titel
- Wavy Two-Dimensional Conjugated Metal-Organic Framework with Metallic Charge Transport
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-942789
- Quellenangabe
- Journal of the American Chemical
Erscheinungsjahr: 2023
Jahrgang: 145
Seiten: 23630-23638
E-ISSN: 1520-5126 - Erstveröffentlichung
- 2023
- Abstract (EN)
- Two-dimensional conjugated metal−organic frameworks (2D c-MOFs) have emerged as a new class of crystalline layered conducting materials that hold significant promise for applications in electronics and spintronics. However, current 2D c- MOFs are mainly made from organic planar ligands, whereas layered 2D c-MOFs constructed by curved or twisted ligands featuring novel orbital structures and electronic states remain less developed. Herein, we report a Cu-catecholate wavy 2D c-MOF (Cu3(HFcHBC)2) based on a fluorinated core-twisted contorted hexahydroxy-hexa-cata-hexabenzocoronene (HFcHBC) ligand. We show that the resulting film is composed of rod-like single crystals with lengths up to ∼4 μm. The crystal structure is resolved by high-resolution transmission electron microscopy (HRTEM) and continuous rotation electron diffraction (cRED), indicating a wavy honeycomb lattice with AA-eclipsed stacking. Cu3(HFcHBC)2 is predicted to be metallic based on theoretical calculation, while the crystalline film sample with numerous grain boundaries apparently exhibits semiconducting behavior at the macroscopic scale, characterized by obvious thermally activated conductivity. Temperature-dependent electrical conductivity measurements on the isolated single-crystal devices indeed demonstrate the metallic nature of Cu3(HFcHBC)2, with a very weak thermally activated transport behavior and a room-temperature conductivity of 5.2 S cm−1. Furthermore, the 2D c-MOFs can be utilized as potential electrode materials for energy storage, which display decent capacity (163.3 F g−1) and excellent cyclability in an aqueous 5 M LiCl electrolyte. Our work demonstrates that wavy 2D c-MOF using contorted ligands are capable of intrinsic metallic transport, marking the emergence of new conductive MOFs for electronic and energy applications.
- Andere Ausgabe
- Link zum Artikel, der zuerst in der Zeitschrift „Journal of the American Chemical Society” bei ACS Publicationss erschienen ist.
DOI: 10.1021/jacs.3c07682 - Verweis
- Ergänzendes Material ist unter folgendem Link zu finden.
Link: https://pubs.acs.org/doi/10.1021/jacs.3c07682#_i5 - Freie Schlagwörter (EN)
- Charge transport, Crystal structure, Electrical conductivity, Ligands, Transmission electron microscopy
- Klassifikation (DDC)
- 540
- Verlag
- ACS Publishing, Washington, DC
- Förder- / Projektangaben
- European Commission (EC)
H2020 | ERC | ERC-STG
Development of Functional Conjugated Two-Dimensional Metal-Organic Frameworks
(FC2DMOF)
ID: 852909 - European Commission (EC)
H2020 | SGA-RIA
Graphene Flagship Core Project 3
(GrapheneCore3)
ID: 881603 - European Commission (EC)
H2020 | ERC | ERC-COG
Development of Thiophene Based Conjugated Polymers in Two Dimensions
(T2DCP)
ID: 819698 - Deutsche Forschungsgemeinschaft (DFG)
SFB 1415: Chemie der synthetischen zweidimensionalen Materialien
ID: 417590517 - Deutsche Forschungsgemeinschaft (DFG)
SPP 1928: Koordinationsnetzwerke als Bausteine für Funktionssysteme (COORNET)
ID: 273920491 - European Commission (EC)
H2020 | RIA
Proto-Opto-Electro-Mechanical Hybrid Systems for Generation-Next Bionic Devices
(PROGENY)
ID: 899205 - European Commission (EC)
H2020 | ERC | ERC-COG
e-Sequence: a sequential approach to engineer heteroatom doped graphene nanoribbons for electronic applications
(e-Sequence)
ID: 722951 - European Commission (EC)
HE | HORIZON-EIC ; HE | HORIZON-EIC\HORIZON-AG
FantastiCOF: Fabricating and Implementing Exotic Materials from Covalent Organic Frameworks
(FantastiCOF)
ID: 101046231 - Version / Begutachtungsstatus
- angenommene Version / Postprint / Autorenversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-942789
- Veröffentlichungsdatum Qucosa
- 11.11.2024
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis
