| Abstract Scope |
High-pressure phases exhibit exceptional properties (e.g., superconductivity, outstanding emission and photoconductivity), yet their potential is hindered by metastability under ambient conditions. This talk presents two approaches to addressing this challenge. First, the pressure aging (PA) strategy, based on thermodynamic hysteresis effect, is introduced to enable the permanent locking-in of high-pressure structures and the associated enhanced properties in functional materials. The broad applicability of PA strategy has been validated across different materials, underscoring its versatility. Second, for structural mimicry, we establish quantitative structure-property relationships from high-pressure research and replicate the critical structural features via chemical substitution or molecular engineering at ambient pressure. Experimental validation using 2D halide perovskites demonstrates that synthesis of a new compound (CMA)2(FA)Pb2I7 with a high PLQY of 60%. These approaches collectively bridge the gap between high-pressure discovery and ambient-condition exploration, offering a roadmap for designing next-generation functional materials. |