Essays Tagged: "Photovoltaic"

Solar power: photovoltaics The journey from photons to electrons

IntroductionSolar power is obtained mainly by the use of solar cells. The photovoltaic (PV) effect is the basic physical process through which a PV cell converts sunlight int ... V) effect is the basic physical process through which a PV cell converts sunlight into electricity. Photovoltaics, as the word implies (photo = light, voltaic = electricity), convert sunlight directly ... iving a current through an external circuit and thereby producing useful work.Silicon in solar cellsPhotovoltaic (PV) cells are made of special materials called semiconductors such as silicon, which i ...

(6 pages) 45 0 3.0 Sep/2003

Subjects: Science Essays

The History of the Radio.

Photovoltaic CellsAs our society expands, there become greater needs for energy. The rate that we ar ... our sun. This energy can be converted to a usable form in a variety of ways. I will explain how the Photovoltaic cell transfers the sun's rays into electrical energy. I will begin by describing the st ... les behind the structure, and finally I will show some of the PV cell variations.The structure of a Photovoltaic cell is the key to how it functions and transfers energy. And so I will begin by explai ...

(7 pages) 22 0 5.0 Sep/2005

Subjects: Science Essays > Technology


effects on our economy. The growth of oil is less than 1.5 percent per year, however, the wind and photovoltaic markets are doubling in size ever three years.Hydrogen is the most basic and widespread ...

(3 pages) 37 0 0.0 Apr/2006

Subjects: Science Essays > Chemistry

Photovoltaic Panels

Photovoltaic PanelsPhotovoltaic panels, more commonly known as solar panels, are panels that are mad ... convert the energy given off by the sun into usable energy, such as electricity for homes. The word Photovoltaic means "light electricity." This is because light is changed into electricity. The first ... ning one of these panels, one only has to make sure that it is clean enough to absorb the sunlight. Photovoltaic panels are a sensible source of alternative energy because they don't require much main ...

(4 pages) 1 0 0.0 Apr/2012

Subjects: Science Essays

The Effect of Fossil Fuels on Biodiversity and Alternative Energy Resources

some of the world's largest solar-thermal power plants. Solar power is split into two forms. First, Photovoltaic (PV) devices, or solar cells, are arranged into silicon panels and can be used to conve ...

(6 pages) 1 0 0.0 Oct/2014

Subjects: Science Essays > Biology