Hybrid electrolytes based on ionic liquids and amorphous porous silicon nanoparticles: Organization and electrochemical properties

•Hybrid electrolytes with exciting tunable electrochemical properties and exceptional redox stability window.•Unprecedented influence of freestanding luminescent amorphous porous silicon nanoparticles on the current transport and ionic conductivity of various ionic liquids.•Complexation between amorphous silicon nanoparticles and ionic liquids led to a pronounced boost in the electrocatalytic activity.•High-performance hybrid electrolytes for electrochemical and sensing applications.