Hybridization-activated new deep ultraviolet transparent nonlinear optical material Ba11[Al(PO4)4](P2O7)(PO4)3 with balanced overall performance and parsimony-forbidden structure

Abstract

A new nonlinear optical material, Ba₁₁[Al(PO₄)₄](P₂O₇)(PO₄)₃, was rationally synthesized via the hybridization of three types of anionic groups, namely [AlO₄]⁵⁻, [PO₄]³⁻ and [P₂O₇]⁴⁻, via a spontaneous nucleation method. Ba₁₁[Al(PO₄)₄](P₂O₇)(PO₄)₃ was characterized with high thermal stability, deep ultraviolet transparency and moderate second-order optical nonlinearity, which were favourable for practical applications.