- AutorIn
- Mingchao Wang Technische Universität Dresden, Fakultät Chemie und Lebensmittelchemie, Professur für Molekulare Funktionsmaterialien#Technische Universität Dresden, Center for Advancing Electronics Dresden (cfaed)
- Mao Wang
- Hung-Hsuan LinTechnische Universität Dresden, Fakultät Chemie und Lebensmittelchemie, Professur für Molekulare Funktionsmaterialien#Technische Universität Dresden, Center for Advancing Electronics Dresden (cfaed)
- Marco Ballabio
- Haixia Zhong
- Mischa Bonn
- Shengqiang Zhou
- Thomas Heine
- Enrique Cánovas
- Renhao Dong
- Xinliang Feng
- Titel
- High-Mobility Semiconducting Two-Dimensional Conjugated Cova-lent Organic Frameworks with p-Type Doping
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-744694
- Quellenangabe
- Journal of the American Chemical Society
Erscheinungsjahr: 2020
Jahrgang: 142
Heft: 52
Seiten: 21622-21627
E-ISSN: 1520-5126 - Erstveröffentlichung
- 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.
- Andere Ausgabe
- Link zum Artikel der zuerst in der Zeitschrift 'Journal of the American Chemical Society' erschienen ist
DOI: 10.1021/jacs.0c10482 - Freie Schlagwörter (DE)
- Kovalente organische Gerüste, Streuung, Trägerdynamik, elektrische Leitfähigkeit, Dotierung
- Freie Schlagwörter (EN)
- Covalent organic frameworks, Scattering, Carrier dynamics, Electrical conductivity, Doping
- Klassifikation (DDC)
- 540
- Verlag
- ACS Publications, Washington, DC
- Förder- / Projektangaben
- 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 / Begutachtungsstatus
- angenommene Version / Postprint / Autorenversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-744694
- Veröffentlichungsdatum Qucosa
- 20.12.2021
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis