The dramatic expansion of data volumes has placed high demands and challenges on optical information technology, and the stimulus-responsive behaviors of luminescent materials have received broad interests therein. Thus, the reliable luminescence materials with fatigue resistance during the storage and erasure process are highly considered. Herein, we design and synthesize organic-inorganic bimetallic halides emitters Sc(DMSO)₆SbCl₆ (DMSO = dimethyl sulfoxide), possessing bright yellow-green luminescence with extreme sensitivity to water. Accordingly, a rapid solvent-driven information writing and erasure process is realized. Benefiting from the weak interaction between Sc and O in the hybrid framework, the emission is easily quenched by structural dissociation in water and can be rapidly restored in DMSO in several seconds. Due to its ability to write and erase information through solvent-driven processes, Sc(DMSO)₆SbCl₆ exhibits promising potential for storing information. This work offers a new route in the development of hybrid bimetallic halides with switchable emission and erasable information storage.

Laser phosphor display technology plays an important role in advanced display projection; however, it is a challenge in maintaining excellent color accuracy under high brightness due to the lack of red spectrum. Here, red-emitting Mg₂Al₄Si₅O₁₈:Eu²⁺ ceramics as the phosphor wheel have been optimized in chemical compositions and texture orientation. The textured Mg₂Al₄Si₅O₁₈:Eu²⁺ ceramics have high transparency and spot limiting ability, accordingly, the ceramic wheel outputs 1,184 lm of ultra-bright red light under 50 W/mm² laser power density. Moreover, the red spectral utilization (over 600 nm) of textured Mg₂Al₄Si₅O₁₈:Eu²⁺ ceramics is 2.17 times that of traditional Y₃Al₅O₁₂:Ce³⁺ phosphor wheel. The red-emitting textured Mg₂Al₄Si₅O₁₈:Eu²⁺ cordierite ceramic herein enables an improved light-color saturation experience, and it is potential in the next-generation laser phosphor display applications.

Mn²⁺ doped garnet-type Na₂CaSn₂Ge₃O₁₂ phosphor was selected and studied due to its abundant chemical compositions and several crystallographic sites. Several ion substitution strategies including the chemical substitution of Na⁺/Sr²⁺/Ba²⁺ on Ca²⁺ sites and the anti-site occupation of Sn⁴⁺/Ge⁴⁺ were designed for regulating the different energy traps and promoting multimode luminescence properties like persistent luminescence, X-ray storage capacities and mechano-luminescence. In addition, the X-ray luminescence storage and mechano-luminescence properties of these materials as well as their applications on X-ray luminescence extension imaging and stress sensing were also investigated.