Achieving Record-High Birefringence in a 3D Fluorozincoborate via Coplanar Alignment of π-Conjugated [BO3] Units

Borates, as advanced optical material, demonstrates broad application prospects in the field of birefringence. This study employed low-temperature flux methods to synthesize two novel alkaline metal fluorozinc borates, namely, Na 6 ZnF 2 B 12 O 24 H 6 and KZn 3 B 2 O 6 F. They...