High-mobility organic mixed conductors with a low synthetic complexity index via direct arylation polymerization
Artikel i vetenskaplig tidskrift, 2024

Through direct arylation polymerization, a series of mixed ion-electron conducting polymers with a low synthetic complexity index is synthesized. A thieno[3,2-b]thiophene monomer with oligoether side chains is used in direct arylation polymerization together with a wide range of aryl bromides with varying electronic character from electron-donating thiophene to electron-accepting benzothiadiazole. The obtained polymers are less synthetically complex than other mixed ion-electron conducting polymers due to higher yield, fewer synthetic steps and less toxic reagents. Organic electrochemical transistors (OECTs) based on a newly synthesized copolymer comprising thieno[3,2-b]thiophene with oligoether side chains and bithiophene exhibit excellent device performance. A high charge-carrier mobility of up to μ = 1.8 cm2 V−1 s−1 was observed, obtained by dividing the figure of merit [μC*] from OECT measurements by the volumetric capacitance C* from electrochemical impedance spectroscopy, which reached a value of more than 215 F cm−3

Författare

Joost Kimpel

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Youngseok Kim

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Jesika Asatryan

Universidade da Coruña

Jaime Martín

Universidade da Coruña

Renee Kroon

Linköpings universitet

Christian Müller

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Chemical Science

2041-6520 (ISSN) 2041-6539 (eISSN)

Vol. 15 20 7679-7688

Ämneskategorier

Cell- och molekylärbiologi

Organisk kemi

DOI

10.1039/d4sc01430h

Mer information

Senast uppdaterat

2024-07-02