High-Performance n-Type Polymeric Mixed Ionic-Electronic Conductors The Impacts of Halogen Functionalization

High-Performance n-Type Polymeric Mixed Ionic-Electronic Conductors : The Impacts of Halogen Functionalization

© 2023 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 4 vom: 23. Jan., Seite e2305416
1. Verfasser: Yang, Wanli (VerfasserIn)
Weitere Verfasser: Feng, Kui, Ma, Suxiang, Liu, Bin, Wang, Yimei, Ding, Riqing, Jeong, Sang Young, Woo, Han Young, Chan, Paddy Kwok Leung, Guo, Xugang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article halogen functionalization n-type polymer semiconductors organic electrochemical transistors organic thermoelectrics polymeric mixed ionic-electronic conductors
Beschreibung
Zusammenfassung:© 2023 Wiley-VCH GmbH.
Developing high-performance n-type polymer mixed ionic-electronic conductors (PMIECs) is a grand challenge, which largely determines their applications in vaious organic electronic devices, such as organic electrochemical transistors (OECTs) and organic thermoelectrics (OTEs). Herein, two halogen-functionalized PMIECs f-BTI2g-TVTF and f-BTI2g-TVTCl built from fused bithiophene imide dimer (f-BTI2) as the acceptor unit and halogenated thienylene-vinylene-thienylene (TVT) as the donor co-unit are reported. Compared to the control polymer f-BTI2g-TVT, the fluorinated f-BTI2g-TVTF shows lower-positioned lowest unoccupied molecular orbital (LUMO), improved charge transport property, and greater ion uptake capacity. Consequently, f-BTI2g-TVTF delivers a state-of-the-art µC* of 90.2 F cm-1 V-1 s-1 with a remarkable electron mobility of 0.41 cm2 V-1 s-1 in OECTs and an excellent power factor of 64.2 µW m-1 K-2 in OTEs. An OECT-based inverter amplifier is further demonstrated with voltage gain up to 148 V V-1 , which is among the highest values for OECT inverters. Such results shed light on the impacts of halogen atoms on developing high-performing n-type PMIECs
Beschreibung:Date Revised 25.01.2024
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202305416