“…For the aforementioned reasons, a power supply driven by sustainable, safe, and biocompatible energy sources is commanding. Mechanoluminescence (ML), a form of light emission, happens when stress-sensing materials convert mechanical energy into photons. , The brightness of ML strongly depends on the applied force, and it can be generated through various mechanisms, including fracto-, piezo-, and triboluminescence. − In recent years, great efforts have been made to develop various ML materials, such as quaternary oxysulfides, oxonitridosilicates, niobates, and stannates . Due to its interesting properties, ML has been widely applied in lighting, displays, stress sensing, photonic skin, and optogenetics. − Importantly, ML employed as a self-powering system totally works in a sustained way, which is highly significant for the development of internal light sources.…”