A&P Seminar - Christopher Grieco

The Analytical and Physical Seminar Series presents: Christopher Grieco 

Auburn University

Host: Sean Roberts

Title: Probing Charge Carriers in Mixed Ionic-Electronic Conducting Polymers

Location: WEL 2.122

Refreshments served at 3:15pm

Conjugated polymers continue to emerge as next-generation electronic materials for mixed ionic-electronic conduction applications, ranging from biomedical sensing to energy storage. However, their development is hampered by a lack of rational chemical design principles due to missing fundamental knowledge about how ion-charge interactions and dynamic polymer nanostructure influence charge transport and storage along polymer chains. In this talk, I will first discuss how we are exploiting the ultrafast dynamics of photoexcited charge carriers to provide details on their nanoscale environment and trapping behavior. Then I will show how in situ electronic and vibrational spectroscopy of polymer electrodes can be used to track their complex nanoscale dynamics during charging, revealing insights into nanostructures that support the formation of mobile carriers.