Electroluminescent Properties of Several Types of Organic Luminescent Materials

Date: 4^th August, 2026 (Tuesday)

Time: 5 - 6 pm (HKT)

 

Venue: Lecture Theatre P1, Chong Yuet Ming Chemistry Building

 

 

School of Chemistry and Chemistry Engineering

Nanjing University

 

Prof. You-Xuan Zheng received his PhD degree from Changchun Institute of Applied Chemistry, Chinese Academy of Sciences in 2002. Afterwards, he carried out postdoctoral research at Technische Universität Dresden (Germany), Institute for Organic Synthesis and Photoreactivity, National Research Council of Italy (Italy), and Queen Mary University of London (UK). He joined the School of Chemistry and Chemical Engineering, Nanjing University in 2006. His research mainly focuses on the development of phosphorescent complexes, thermally activated delayed fluorescence materials and chiral luminescent materials for organic light-emitting diodes. As the first or corresponding author, he has published more than 250 papers. He has presided over numerous national, provincial and ministerial research projects as well as major industrial collaborative projects.

 

Organic light-emitting diodes (OLEDs) have been widely applied in numerous fields such as smartphone and television displays, with luminescent materials serving as their core component. This seminar mainly presents three primary research directions of our research group: (1) Phosphorescent iridium complexes: enhancing electron transport capacity, achieving high-efficient synthesis under mild reaction conditions, and realizing narrowband emission characteristics via ligand design. (2) Multi-resonant thermally activated delayed fluorescence (MR-TADF) materials: tuning emission color and enabling ultra-narrowband emission through structural modification. (3) Chiral luminescent materials: fabricating circularly polarized electroluminescent devices by virtue of their circularly polarized luminescence properties.