- title
- High-Mobility Semiconducting Two-Dimensional Conjugated Cova-lent Organic Frameworks with p-Type Doping
- Please use the following URL when quoting:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-744694
- original00000000000
- Journal of the American Chemical Society
Erscheinungsjahr: 2020
Jahrgang: 142
Heft: 52
Seiten: 21622-21627
E-ISSN: 1520-5126 - publication_date
- 2020
- Abstract (EN)
- Two-dimensional conjugated covalent organic frameworks (2D c-COFs) are emerging as a unique class of semiconducting 2D conjugated polymers for (opto)electronics and energy storage. Doping is one of the common, reliable strategies to control the charge carrier transport properties, but the precise mechanism underlying COF doping has remained largely unexplored. Here we demonstrate molecular iodine doping of a metal–phthalocyanine-based pyrazine-linked 2D c-COF. The resultant 2D c-COF ZnPc-pz-I2 maintains its structural integrity and displays enhanced conductivity by 3 orders of magnitude, which is the result of elevated carrier concentrations. Remarkably, Hall effect measurements reveal enhanced carrier mobility reaching ∼22 cm2 V–1 s–1 for ZnPc-pz-I2, which represents a record value for 2D c-COFs in both the direct-current and alternating-current limits. This unique transport phenomenon with largely increased mobility upon doping can be traced to increased scattering time for free charge carriers, indicating that scattering mechanisms limiting the mobility are mitigated by doping. Our work provides a guideline on how to assess doping effects in COFs and highlights the potential of 2D c-COFs to display high conductivities and mobilities toward novel (opto)electronic devices.
- otherVersion0000
- Link zum Artikel der zuerst in der Zeitschrift 'Journal of the American Chemical Society' erschienen ist
DOI: 10.1021/jacs.0c10482 - Keywords (DE)
- Kovalente organische Gerüste, Streuung, Trägerdynamik, elektrische Leitfähigkeit, Dotierung
- Keywords (EN)
- Covalent organic frameworks, Scattering, Carrier dynamics, Electrical conductivity, Doping
- Classification (DDC)
- 540
- Publishing house
- ACS Publications, Washington, DC
- project_funding000000000
- 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
European Commission (EC)
H2020 | ERC | ERC-STG
Development of Functional Conjugated Two-Dimensional Metal-Organic Frameworks (FC2DMOF)
ID: 852909
European Commission (EC)
Bottom-Up generation of atomicalLy precise syntheTIc 2D MATerials for high performance in energy and Electronic applications – A multi-site innovative training action (ULTIMATE)
ID: 813036
Deutsche Forschungsgemeinschaft (DFG)
Center for Advancing Electronics Dresden (cfaed)
ID: 194636624
Deutsche Forschungsgemeinschaft (DFG)
Schwerpunktprogramm
Koordinationsnetzwerke als Bausteine für Funktionssysteme (COORNETs)
ID: 273920491
Deutsche Forschungsgemeinschaft (DFG)
Sonderforschungsbereiche
Chemie der synthetischen zweidimensionalen Materialien (SFB 1415)
ID: 417590517 - version
- angenommene Version / Postprint / Autorenversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-744694
- Qucosa date of publication
- 20.12.2021
- Document type
- article
- Document language
- English
- licence
