Professor Yang Liyan, an associate professor from the Key Laboratory of Textile Fiber and Product at our university, along with the team led by Professor Wang Dong, published a high-level paper titled Large-scale, stretchable, self-protective, and multifunctional perovskite luminescent filament with ultra-high stability in Advanced Materials.
(https://onlinelibrary.wiley.com/doi/10.1002/adma.202400919)
Wuhan Textile University is the first and sole corresponding unit, with Associate Professor Yang Liyan as the first author and Professor Wang Dong as the sole corresponding author.
Perovskite luminescent materials have shown great potential in the field of flexible displays and wearable optoelectronics due to their excellent optoelectronic properties, such as high photoluminescence quantum yield, tunable emission spectrum, high color purity, and high carrier transport efficiency. However, the intrinsic instability of perovskite materials under wet, hot, and UV light conditions has hindered their industrial development and application.
Professor Wang Dong's team has pioneered the development of highly stretchable and ultra-stable perovskite@polymer luminescent filaments (CsPbX3 PLF, X=Cl, Br, I) based on wet spinning, overcoming the bottleneck of intrinsic instability of perovskite materials. The prepared CsPbX3 PLF luminescent filaments exhibit rich fluorescence colors, high brightness, tunable emission spectra, and high color purity. With the in-situ encapsulation effect of polyurethane and the chelation interaction between polyurethane and CsPbBr3 nanocrystals, CsPbBr3 PLF demonstrates outstanding thermal, moisture, and UV light stability. The environmentally friendly preparation method, high production speed, low production cost, and good recyclability of fluorescence performance indicate enormous potential for large-scale production. This work has achieved applications in organic dyes, stretch sensing, flexible pattern displays, secondary anti-counterfeiting, and hazard warning systems for the first time, expanding the application fields of perovskite materials.
Author bio: Yang Liyan, an associate professor at the Technical Research Institute of Wuhan Textile University, supervisor of postgraduate students, and a member of the ChuTian Scholars Program in Hubei Province. She has been awarded the National Natural Science Foundation of China for Young Scientists, the Youth Fund Project of the Natural Science Foundation of Hubei Province, and has published over 20 SCI papers in international journals such as Advanced Materials, Reports on Progress in Physics, Advanced Functional Materials, and Journal of Materials Chemistry A, with one highly cited paper in ESI.
Editor: Cheng Peng
