Seoul National Univ. DMSE
Notice
Seminar & Colloquium
Seminar & Colloquium
[세미나: 3월 25일(화), 오후 2시 30분] Prof. Christian Muller, Chalmers University of Technology
| Titles | Benign Synthesis and Structure-Property Relationships of Organic Mixed Conductors | Speaker | Prof. Christian Muller Dept. of Chemistry and Chemical Engineering, Chalmers University of Technology, Sweden
| Date | Tuesday, March 25th, 2025 | Time | 14:30~ | Venue | 33동 125호 (WCU 세미나실)
| Abstract | Organic mixed ionic–electronic conductors (OMIECs) are a class of semiconducting materials that are widely studied for application areas ranging from energy technology to wearable electronics and bioelectronics. Many OMIECs are based on conjugated polymers, which offer a promising combination of electrical and mechanical properties but typically require hazardous synthetic routes that are poorly scalable. This talk will explore how direct arylation polymerization can be used for the environmentally benign synthesis of p-type polymers with a state-of-the-art performance.1 Model thienothiophene based copolymers with oligoether side chains feature a hole mobility as high as 6 cm2 V-1 s-1 in organic electrochemical transistors (OECTs) and an elastic modulus of about 100 MPa. In-situ monitoring of the electrical and mechanical properties will be discussed,2 which allows to correlate changes in the nanostructure of the OMIEC during oxidation/reduction cycles with variations in mobility and elastic modulus. Overall, materials are presented that combine benign and scalable synthesis with an excellent electrical and mechanical performance. | Host | 이태우 교수((02-880-8021), 강기훈 교수(02-880-7189) |