Monoclinic bismuth vanadate band gap determination by photoelectrochemical spectroscopy
نویسندگان
چکیده
منابع مشابه
Factors 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 کاملEnhanced photoelectrochemical water oxidation on bismuth vanadate by electrodeposition of amorphous titanium dioxide.
n-BiVO4 is a promising semiconductor material for photoelectrochemical water oxidation. Although most thin-film syntheses yield discontinuous BiVO4 layers, back reduction of photo-oxidized products on the conductive substrate has never been considered as a possible energy loss mechanism in the material. We report that a 15 s electrodeposition of amorphous TiO2 (a-TiO2) on W:BiVO4/F:SnO2 blocks ...
متن کاملDetermination of the direct band-gap energy of InAlAs matched to InP by photoluminescence excitation spectroscopy
A series of InxAl12xAs samples (0.51,x,0.55) coherently grown on InP was studied in order to measure the band-gap energy of the lattice matched composition. As the substrate is opaque to the relevant photon energies, a method is developed to calculate the optical absorption coefficient from the photoluminescence excitation spectra. The effect of strain on the band-gap energy has been taken into...
متن کاملSynthesis of BiVO4 nanoparticles by the co-precipitation method and study the crystal structure, optical and photocatalytic properties of them
In this paper, the bismuth vanadate (BiVO4) nanoparticles were synthesized at 600 °C calcination temperature by co-precipitation method. To study the crystal structure, morphology, optical and photocatalytic properties of the samples, the X-ray diffraction analysis, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy and ult...
متن کاملBlueprint for wafer-scale three-dimensional photonic band-gap synthesis by photoelectrochemical etching.
We present an architecture for three-dimensional photonic band-gap (PBG) material synthesis by oblique angle photoelectrochemical pore etching. This technique provides high aspect ratio pores, in which the pore diameter can be modulated by changing light intensity during the etch process. The naturally occurring "Kielovite" structure is a stretched version of the face-centered-cubic lattice of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Materials Chemistry and Physics
سال: 2017
ISSN: 0254-0584
DOI: 10.1016/j.matchemphys.2017.08.053