Interfacial defect engineering over fusiform bismuth vanadate photocatalyst enables to excellent solar-to-chemical energy coupling
نویسندگان
چکیده
منابع مشابه
Reactive Sputtering of Bismuth Vanadate Photoanodes for Solar Water Splitting
Bismuth vanadate (BiVO4) has attracted increasing attention as a photoanode for photoelectrochemical (PEC) water splitting. It has a band gap in the visible light range (2.4−2.5 eV) and a valence band position suitable for driving water oxidation under illumination. While a number of methods have been used to make BiVO4 photoanodes, scalable thin film deposition has remained relatively underexp...
متن کاملSimultaneous enhancements in photon absorption and charge transport of bismuth vanadate photoanodes for solar water splitting
n-Type bismuth vanadate has been identified as one of the most promising photoanodes for use in a water-splitting photoelectrochemical cell. The major limitation of BiVO4 is its relatively wide bandgap (∼2.5 eV), which fundamentally limits its solar-to-hydrogen conversion efficiency. Here we show that annealing nanoporous bismuth vanadate electrodes at 350 °C under nitrogen flow can result in n...
متن کاملFactors affecting bismuth vanadate photoelectrochemical performance
Beckman Institute and Division of Chemist Institute of Technology, Pasadena, Californ edu † Electronic supplementary informatio photoanode performances; experimental FTO-glass photoanodes; statistics of aspect-ratio-normalised diameter distrib FTO-glass photoanodes; effect of iodi solubility of metal salts in the spin-coat of electrodeposited BiVO4 without sulte spectrum; SEM images of FTO on ...
متن کاملEfficient water-splitting device based on a bismuth vanadate photoanode and thin-film silicon solar cells.
A hybrid photovoltaic/photoelectrochemical (PV/PEC) water-splitting device with a benchmark solar-to-hydrogen conversion efficiency of 5.2% under simulated air mass (AM) 1.5 illumination is reported. This cell consists of a gradient-doped tungsten-bismuth vanadate (W:BiVO4 ) photoanode and a thin-film silicon solar cell. The improvement with respect to an earlier cell that also used gradient-do...
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ژورنال
عنوان ژورنال: RSC Advances
سال: 2017
ISSN: 2046-2069
DOI: 10.1039/c7ra04328g