Photovoltaic properties of novel conjugated oligomer/n-Si(111) heterostructrues

Effects of surface-modification with Bi2O3 on the thermal stability and photoinduced charge property of nanocrystalline anatase TiO2 and its enhanced photocatalytic activity

“…The ultraviolet-visible diffuse reflectance spectra (UV-vis DRS) of the samples are recorded with a Model Shimadzu UV2550 spectrophotometer. The SPS measurements of the samples are carried out with a home-built apparatus that had been described in detail elsewhere [25][26][27][28]. The powder samples are sandwiched between two ITO glass electrodes, and the change of surface potential barrier between in the presence of light and in the dark is SPS signal.…”

Self-assembled BiVO4/Bi2WO6 microspheres: synthesis, photoinduced charge transfer properties and photocatalytic activities

“…That is to say that the photovoltage response intensity is related to the charge separation efficiency, which signifies that a stronger SPV response intensity indicates a higher separation efficiency of photoinduced charge carriers. 28,29 A weaker photovoltage response was observed in the region of 300-450 nm due to the band to band transition of Bi 2 WO 6 , and a higher photovoltage response of the BiVO 4 /Bi 2 WO 6 composites was in the range of 300-520 nm. This indicated that the added BiVO 4 not only broadened the photovoltage response range of Bi 2 WO 6 , but also enhanced the response intensity.…”

Preparation and characterization of nanoparticle Ru:TiO2 films and their photocatalytic activity

“…The SPS measurements of the samples were carried out with a home-built apparatus that had been described elsewhere [9][10]. The generation of photovoltage arises from the creation of electron-hole pairs, followed by the separation under a built-in electric field (the space-charge layer).…”