Perovskite (structure)×Electrolyte

The same halide, metal-halide, and defect-engineering toolkit that pushed perovskite solar cells past 25% efficiency maps directly onto the search for fast-ion solid electrolytes and stable electrochemical interfaces. When perovskite crystal-structure control meets battery/electrolyte science, the payoff is halide-based solid-state ion conductors and perovskite-structured (ABX3) electrolytes with tunable, defect-driven ionic transport.

Both sides already lean on the identical bridge tools — DFT for defect/migration energetics, nucleation control for crystal growth, XPS for interface chemistry, and shared halide/metal/zinc chemistry — yet they don't co-publish. 38 authors work both sides separately and there are 41 common neighbours with a high Adamic-Adar affinity (11.6), meaning the intellectual scaffolding to merge is fully built while the direct link is still missing. That gap-with-scaffolding is the classic pre-collision signature.

Groups that already do atomic-scale interface and defect engineering on halide perovskites (the carrier-management and interlayer-coherence crowd) are best placed to jump into ionic transport, because ion migration in perovskites — normally a degradation nuisance in solar cells — becomes the desired mechanism in electrolytes. Winners will be labs fluent in both DFT-guided halide crystal design and electrochemical interface characterization, rather than pure-battery or pure-photovoltaic specialists.

Fund a DFT-plus-synthesis program to design ABX3 halide perovskites optimized for fast Li+/Na+/Zn2+ conduction rather than photovoltaic performance: use migration-barrier screening to pick halide/metal combinations, grow them with the same nucleation control used for solar films, and test them as solid electrolytes with XPS-characterized electrode interfaces.