Engineering Ultrahigh‐Contrast Photoactivated Room‐Temperature Phosphorescence With a Robust and Universal Ureido‐Functionalized Siloxane Network. - Gao, Ya Ting; Zhang, Ying; Chen, Bin Bin; Liang, Li Ya; Ye, Ming Jie; Zhao, Meng Qi; Zhang, Xiao Yu; Xue, Fei Yang; Lv, Jian; Li, Da Wei; Ma, Xiang (Angewandte Chemie, 2026)