Designing a novel perovskite-type KCd(NH2SO3)3 with deep-ultraviolet transparency and strong second-harmonic generation response

We modified the perovskite ABX 3 structure by substituting X-site with NH 2 SO 3 − , using Cd 2+ at B-site and K + at A-site. This resulted in DUV transparency (<190 nm), strong SHG (>1.1 × KDP), and easy growth (20 × 17 × 5 mm 3 ).