5-sec UV response
A regenerated cellulose aerogel with homogeneously dispersed WO₃ nanodots exhibits superfast photochromism, and its annealed form doubles as an efficient photothermal converter.
Yanjin, Tang · Yuhan, Lai · Gao, Ruiqin · Yuxuan, Chen · Kexin, Xiong · Juan, Ye · Qi, Zheng · Fang, Zhenxing · Pang, Guangsheng · Hoo-Jeong, Lee
Gels 2023
Turns from pale white to bright blue within 5 s under ambient solar irradiation