KF·B(OH) 3 : a KBBF-type material with large birefringence and remarkable deep-ultraviolet transparency.
Yang LiXinglong ChenKang Min OkPublished in: Chemical communications (Cambridge, England) (2022)
A designed material with large birefringence and remarkable deep-ultraviolet transparency, KF·B(OH) 3 , has been discovered. The well-aligned [F·B(OH) 3 ] - layers endow a very large bandgap (7.63 eV), comparably large birefringence (0.114 @1064 nm), and the reinforced interlayer bonding of ca. 2.16 × KBe 2 BO 3 F 2 .