Water-splitting dye-sensitized photoelectrochemical (WS-DSPECs) cells employ molecular sensitizers to absorb light and transport holes across the TiO2 surface to colloidal or molecular water oxidation catalysts. As hole diffusion occurs along the surface, electrons are transported through the mesoporous TiO2 film. In this paper we report the effects of electron trapping and protonation in the T...

In lanthanide-sensitized upconversion (UC) nanomaterials, the typical sensitizer Yb 3+ can significantly modulate codoped activator (such as Er ions) to generate multiband transitions.

The kinetic rate equation for the photosensitized cleavage reaction of surface-bound photolabile chromophores with free diffusion of sensitizer molecules from the bulk of a solution to the surface is derived by determining the stationary solution of a diffusion equation with suitable boundary conditions. The relation between the phenomenological rate constant for the photosensitized reaction at...

Ligand-protected Au 2 Cu 6 cluster exhibits not only fluorescence but also phosphorescence at room temperature and serves as a triplet sensitizer in fusion upconversion.

For a product containing a strong sensitizer to be considered a hazardous substance and to require cautionary labeling under the FHSA, the product must be capable of causing substantial personal injury or substantial illness during, or as a result of, customary or reasonably foreseeable handling or use, including reasonably foreseeable ingestion by children. This requires consideration of the r...

Comparison of Type II photosensitized oxidation lipids (the photodynamic effect) and photodegradation chlorophyll (sensitizer photobleaching) in samples particulate matter collected previously from locations representing a diverse range latitudes reveals an enhancement the photooxidation at expense polar regions. The efficiency effect appears to be particularly high sinking particles under sea ...