Particulate Ta 3 N 5 , a material that responds to visible light for photoelectrochemical O 2 evolution, was glued to a metallic GaN conducting layer. The electrode was able to oxidize water with 1.8-fold higher efficiency than that without GaN. The GaN layer blocked the hole current from Ta 3 N 5 to the back-contact metal layer and prevented hole-electron recombination.
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Energy Engineering and Power Technology