Photochromic and luminescent modulation behaviors in K0.5Na0.5NbO3-based ferroelectric transparent ceramics

Transparent ferroelectric ceramics, emerging as innovative photoelectric multifunctional coupling material, demonstrate significant potential for applications in optical storage and smart windows. However, achieving high transparency via manipulation of the preparation process, microstructure, and phase structure poses a considerable challenge. Here, we employ multiple strategies, including the fabrication technology regulation and donor doping of La 3+ and Tb 3+ at the A-site of K 0.5 Na 0.5 NbO 3 to fabricate exceptional transparent ceramics coupled with multi-mode reversible modulations of transparency, photochromism, and photoluminescence. This research offers a novel perspective on the design of transparent multifunctional materials.