Chem. Sci., 2025, Accepted Manuscript DOI: 10.1039/D5SC04977F, Edge Article Ru-Ling Tang, Yue Wang, Yi-Lei Lv, Bing-Wei Miao, Wen-Long Liu, Sheng-Ping Guo Birefringent crystals have received increasing attention due to their extensive applications in the field of modern optics. While rationally designing excellent birefringent materials still remains challengeable, the emergence of organic-inorganic...