CuBi_(2)O_(4) and CuWO_(4) films(2×2 cm)on an FTO substrate have been fabricated to construct an allcopper-based oxide tandem cell for solar-driven photoelectrochemical(PEC)water splitting.CuBi_(2)O_(4) and CuWO_...CuBi_(2)O_(4) and CuWO_(4) films(2×2 cm)on an FTO substrate have been fabricated to construct an allcopper-based oxide tandem cell for solar-driven photoelectrochemical(PEC)water splitting.CuBi_(2)O_(4) and CuWO_(4) films are of opposite semiconductivity,and exhibit a large difference in the onset potentials and matched light absorption,making them ideal for a tandem configuration for solar energy conversion.Under optimal conditions,the tandem cell(4 cm^(2))exhibits a water splitting photocurrent of 0.3 mA without an external bias under simulated solar insolation.The low cost,non-toxicity,good stability and easy manufacture of this copper-based oxide tandem cell warrant promising applications in the field of solar energy conversion.展开更多
基金the National Natural Science Foundation of China(Grant No.51972233)the Natural Science Foundation of Shanghai(Grant No.19ZR1459200)+1 种基金the Shanghai Science and Technology Commission(14DZ2261100)the Fundamental Research Funds for the Central Universities for funding.
文摘CuBi_(2)O_(4) and CuWO_(4) films(2×2 cm)on an FTO substrate have been fabricated to construct an allcopper-based oxide tandem cell for solar-driven photoelectrochemical(PEC)water splitting.CuBi_(2)O_(4) and CuWO_(4) films are of opposite semiconductivity,and exhibit a large difference in the onset potentials and matched light absorption,making them ideal for a tandem configuration for solar energy conversion.Under optimal conditions,the tandem cell(4 cm^(2))exhibits a water splitting photocurrent of 0.3 mA without an external bias under simulated solar insolation.The low cost,non-toxicity,good stability and easy manufacture of this copper-based oxide tandem cell warrant promising applications in the field of solar energy conversion.
