Qinxia Wu, Xinqi Xu, Xiaokun Li, Hao Jiang, Xian Qin, Zhongzhu Hong, Xiaofeng Chen, Zhijian Yang, Xiangyu Ou, Lili Xie, Yu He, Sanyang Han, Qiushui Chen, Huanghao Yang
Long-lasting radioluminescence scintillators have recently attracted substantial attention from both research and industrial communities, primarily due to their distinctive capabilities of converting and storing X-ray energy. However, determination of energy-conversion kinetics in these nanocrystals remaines unexplored. Here we investigate energy funneling kinetics in NaLuF4:Mn2+/Gd3+ nanocrystal sublattices via Gd3+-driven microenvironment engineering and Mn2+-mediated radioluminescence profiling. Our photophysical studies reveal effective control of energy-funneling kinetics and demonstrate the tunability of electron trap depth ranging from 0...
April 18, 2024: Angewandte Chemie