Ultraviolet

Light rays that are outside the visible spectrum at its violet end. These rays have a chemical effect upon the dried film of finishing materials. Ultraviolet light is commonly ...

ultraviolet

Metals; Aluminum

Electromagnetic radiation at wavelengths shorter than violet light and just beyond the visible light spectrum. Sunlight includes ultraviolet radiation, which causes tanning or ...

dye-sensitised solar cell

Energy; Solar power

A dye-sensitised solar cell is a low-cost thin film solar cell that absorbs light by a sensitizer on the surface of a semiconductor. Then photo-induced electrons are injected from ...

solar energy technologies

Energy; Solar power

Convert solar energy to useful purposes. They can provide: electrical generation by heat engine or photovoltaic means; space heating and cooling in active and passive solar ...

solar hot water

Energy; Solar power

Water heated by the use of solar energy.

solar cell

Energy; Solar power

a solar cell (also called photovoltaic cell or photoelectric cell) is a solid state electrical device that converts the energy of light directly into electricity by the ...

passive solar

Energy; Solar power

Technologies that capture sunlight for heat energy without use of active mechanical systems such as fans or pumps (as contrasted to active solar). Such technologies convert ...

solar power

Energy; Solar power

Also called solar energy, solar power is electricity generated from sunlight, either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP). ...