Integration of nonlinear two-photon excited fluorescence and photocatalysis boosts overall water splitting performance

A nonlinear two-photon excited fluorescence photocatalytic system was constructed for the first time by integrating (ZnO)_1-x(GaN)_x photocatalyst and a fluorescence solution of phenanthridine derivatives. This work offers a strategy for increasing the photocatalytic solar spectral utilization rate and boosting the expectation for photocatalytic solar-to-hydrogen efficiencies.