Two Noncentrosymmetric Bismuth Phosphates: Rational Design Synthesis and Optical Properties.

Developing strategies to rational design noncentrosymmetric structure still attract much interest for their applications in nonlinear optical and piezoelectric materials. Two noncentrosymmetric (NCS) alkaline earth metal bismuth phosphates have been successfully achieved via partial replacement of Bi with Ca or Sr ions. BiCa(HPO) (designated as CaBiPO) and BiSr(HPO) (designated as SrBiPO), together with their solid solution Bi(SrCa)(HPO) (0 < ≤ 0.