Novel ultraviolet (UV) nonlinear optical (NLO) materials discovered by chemical substitution-oriented design.

Exploring novel functional materials chemical substitution-oriented design is an emerging strategy. The method can be expanded to the discovery of high performance ultraviolet (UV) nonlinear optical (NLO) solid state materials by a careful tuning of the substituted atoms. This minireview presents a brief introduction to chemical substitution-oriented design including single-site substitution, dual-site substitution, and multisite substitution. Several state-of-the-art UV NLO materials such as KVO(O)CO-type, KBeBOF (KBBF)-type, Ca(PO)(OH)-type, and KTiOPO (KTP)-type phases successfully discovered by the chemical substitution method are discussed.