Energy conversion efficiency×Electrolyte

Perovskite solar cells are fundamentally mixed ionic-electronic conductors; uncontrolled ion migration is the dominant ceiling on both efficiency and operational lifetime. Electrolyte researchers have spent decades solving exactly this problem — ionic transport, interface passivation, solid-state ion conduction — and those design rules are about to be imported wholesale into photovoltaic engineering. The collision creates a new sub-discipline: ionic interface engineering for photoconversion.

The bridge fields are the tell: Ion, Voltage, Cathode, and Phase (matter) already anchor both communities, meaning the conceptual vocabulary is shared even if the publication graphs are not yet merged. Thirty-two authors are already publishing on both sides independently — they are the pre-merger scouts. The perovskite field's own highest-cited papers (atomically coherent interlayers, pseudo-halide anion engineering) are converging on ionic-interface language borrowed from electrochemistry. Meanwhile, solid-state electrolyte research has produced a mature toolkit — ionic conductivity screening, interfacial passivation layers, electrochemical stability windows — that maps directly onto unsolved perovskite stability problems. The Adamic-Adar affinity score of 9.0 with 33 common neighbours signals a structurally primed but still unclaimed collision zone.

Groups straddling photoelectrochemistry and solid-state ionics will move first — specifically, those with joint expertise in halide perovskite processing AND ionic liquid or ceramic electrolyte synthesis. National renewable-energy labs with multi-program mandates (solar + storage) are structurally best placed to make the first high-impact co-publications. On the industrial side, vertically integrated battery-plus-solar players and materials companies with electrolyte IP portfolios will have the fastest translation path. Academic groups already publishing on perovskite ion migration (a sub-field within Field A) are the most likely to reach across and absorb Field B's toolkit.

A systematic materials-screening program that applies the solid-state electrolyte selection framework (ionic conductivity, electrochemical stability window, interfacial adhesion energy) to candidate interlayer materials for n-i-p perovskite solar cells — explicitly mapping electrolyte figures of merit onto perovskite Voc loss and ion-migration activation energy. The deliverable is a transferable design rulebook, not a one-off champion device.