Discovering and Dissecting Mechanically Excited Luminescence of Mn ²⁺ Activators via Matrix Microstructure Evolution

Mechanoluminescent (ML) materials featuring renewable mechanical-to-optical conversion have shown promising prospects in stress sensing, lighting, and display. However, the advancement ML applications is being restrained by obstacles developing efficient understanding underlying mechanisms. Herein, a matrix evolution strategy to modulate local microstructure electronic environment around luminescent activators proposed, which not only supports batch development of new but also provides well-connected platform for systematically revealing mechanism achieving performance. The feasibility proved constructing evaluating series with matrix-dependent properties experimental-theoretical collaboration. It demonstrated that construction piezoluminescence available both non-centrosymmetric centrosymmetric matrices without restricted lattice symmetry. inter-electronic-levels shallow electron traps formed activator doping enhance recombination efficiency through tunneling conduction band transfer pathways. results are expected accelerate exploitation material systems deepen comprehensive apprehending mechanisms, thereby guiding rational design widespread use materials.