Speakers

Prof. Yun MA received his Ph.D degree in 2015 from Hong Kong Baptist University under supervision of Prof. Wai-Yeung Wong. He then joined the Institute of Advanced Materials, Nanjing University of Posts & Telecommunications, in 2015. He was promoted as a full professor in 2022. His research works are focused on the development novel stimuli-responsive materials for applications in information recording and anti-counterfeiting applications. Till now, he has published over 40 peer-reviewed papers in scientific journals, including Science Advances, Nature Communications, Journal of the American Chemical Society, Angewandte Chemie International Edition, Matter, CCS Chemistry, Chemical Science, etc. The research works were highlighted by Nature, Nature Asia, Science Daily, Chemical & Engineering News, etc.

Stimuli-responsive materials for information recording and anti-counterfeiting applications

Abstract

In recent years, stimuli-responsive materials have attracted extensive attention due to their great potential in various optoelectronic devices. The photophysical properties of these materials can be regulated by external stimuli such as metal salts, vapors, temperature, light, electric field, and so on. The unique response behavior of these materials opened up a new way to develop optical information storage and anti-counterfeiting technologies, thus it has attracted wide attention in both scientific community and industry. Current efforts have focused on how to further improve the security level of the recorded information and the produced labels. In this talk, I will introduce our recent research works about the design, synthesis, and applications of stimuli-responsive materials: by varying the counterions and utilizing dynamic metal-ligand coordination of a series of metal complexes, their optical and responsive behaviors have been regulated on demand, and multilevel security printing have been successfully achieved.