Study of Photogalvanic Effect by Using of Natural Dye as Photosensitizer for Solar Energy Conversion And Storage
Keywords:
Solar Energy, environment, solar designAbstract
Energy was a great discovery of human being which made our life more and more comfortable. The vital source of energy is the sun and life on earth is heliocentric as most of its energy is derived from the sun. The sun rays shower the surface of earth and humans have been using them to meet their energy needs. Although, earth receives only small fraction of sun total energy, yet one year's worth of solar energy reaching the surface of the earth is twice the amount of all non-renewable resources, including fossil fuels and nuclear uranium. Mankind has been harnessing the energy from the sun since the17th century B.C. The ancient civilizations (Rome and Greece)has demonstrated their first documented use of sun light by burning mirrors to light torches for religious purpose sand ancient architecture has utilized passive solar design i.e. the use of sun light to heat and light indoor spaces.
19th century saw the incommensurable and revolutionary discovery of the A.E. Becquerel, known as Becquerel effectin1839. The 20th century witnessed the discovery of the photoelectric effect by Einstein and others. This led to research in the field of materials whose chemical properties were desirable to convert solar energy in to electrical energy. Sustainable energy supply remains a main requirement of modern society in order to respond to the increased demand caused by the larger consumption and population growth. For a long time, the energy boom was based on fossil fuels. Not only that the supply of oil, coal, and natural gas is limited, but there is also major pollution and environmental concerns associated with such traditional energy sources.
Solar energy is the newest and most cost effective way to satisfy the huge energy needs of human beings. There are many useful applications of the solar energy in day-to-day life, with many advantages over traditional and the conventional sources of energy. Selection of solar energy as a Non-Conventional and Renewable source of Energy is due to its following advantages-
- It will save you money on your electricity bill if you have one at all.
- It is diffuse and cheapest.
- Solar energy does not require any fuel.
- Solar Energy is clean, renewable and sustainable, helping to protect our environment.
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References
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