- Titel
- A thiophene backbone enables two‐dimensional poly(arylene vinylene)s with high charge carrier mobility
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-892269
- Quellenangabe
- Angewandte Chemie
Erscheinungsjahr: 2023
Jahrgang: 62
Heft: 35
ISSN: 1433-7851
E-ISSN: 1521-3773
Artikelnummer: e202305978 - Erstveröffentlichung
- 2023
- Abstract (EN)
- Linear conjugated polymers have attracted significant attention in organic electronics in recent decades. However, despite intrachain π-delocalization, interchain hopping is their transport bottleneck. In contrast, two-dimensional (2D) conjugated polymers, as represented by 2D π-conjugated covalent organic frameworks (2D c-COFs), can provide multiple conjugated strands to enhance the delocalization of charge carriers in space. Herein, we demonstrate the first example of thiophene-based 2D poly(arylene vinylene)s (PAVs, 2DPAV-BDT-BT and 2DPAV-BDT-BP, BDT=benzodithiophene, BT=bithiophene, BP=biphenyl) via Knoevenagel polycondensation. Compared with 2DPAV-BDT-BP, the fully thiophene-based 2DPAV-BDT-BT exhibits enhanced planarity and π-delocalization with a small band gap (1.62 eV) and large electronic band dispersion, as revealed by the optical absorption and density functional calculations. Remarkably, temperature-dependent terahertz spectroscopy discloses a unique band-like transport and outstanding room-temperature charge mobility for 2DPAV-BDT-BT (65 cm2 V−1 s−1), which far exceeds that of the linear PAVs, 2DPAV-BDT-BP, and the reported 2D c-COFs in the powder form. This work highlights the great potential of thiophene-based 2D PAVs as candidates for high-performance opto-electronics.
- Andere Ausgabe
- Link zum Artikel, der zuerst in der Zeitschrift „Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker ; International edition” erschienen ist.
DOI: 10.1002/anie.202305978 - Forschungsdatenverweis
- Supporting Information
Link: https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fanie.202305978&file=anie202305978-sup-0001-misc_information.pdf - Freie Schlagwörter (EN)
- 2D Conjugated COFs, 2D Poly (AryleneVinylene)s, Band-Like Transport, Charge Mobility, Thiophene Backbone
- Klassifikation (DDC)
- 540
- Verlag
- Wiley-VCH, Weinheim
- Förder- / Projektangaben
- European Commission (EC)
H2020 | ERC | ERC-COG
Development of Thiophene Based Conjugated Polymers in Two Dimensions
(T2DCP)
ID: 819698 - Deutsche Forschungsgemeinschaft (DFG)
Sonderforschungsbereiche
Chemie der synthetischen zweidimensionalen Materialien
(SFB 1415)
ID: 417590517 - European Commission (EC)
H2020 | RIA
Proto-Opto-Electro-Mechanical Hybrid Systems for Generation-Next Bionic Devices
(PROGENY)
ID: 899205 - European Commission (EC)
H2020 | SGA-RIA
Graphene Flagship Core Project 3
(GrapheneCore3)
ID: 881603 - European Commission (EC)
H2020 | RIA
Emerging Printed Electronics Research Infrastructure
(EMERGE)
ID: 101008701 - Deutsche Forschungsgemeinschaft (DFG)
Excellenzcluster
Zentrum für Perspektiven in der Elektronik Dresden
(EXC 1056)
ID: 194636624 - Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-892269
- Veröffentlichungsdatum Qucosa
- 24.01.2024
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis
CC BY 4.0