Photoelectrochemistry of core – shell tandem junction n – p +-Si / nWO 3 microwire array photoelectrodes †


Tandem junction (n–p-Si/ITO/WO3/liquid) core–shell microwire devices for solar-driven water splitting have been designed, fabricated and investigated photoelectrochemically. The tandem devices exhibited open-circuit potentials of Eoc 1⁄4 1.21 V versus E0(O2/H2O), demonstrating additive voltages across the individual junctions (n–p-Si Eoc 1⁄4 0.5 V versus… (More)

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