Sir,
I am a M.Tech part time student in MNNIT Allahabad.
I need to submit a project on nano antenna for harvesting solar energy.
I need a complete project
A nanoanthena (nantenna) is a nanoscopic rectifying antenna. It is an electromagnetic manifold designed to absorb specific wavelengths that are proportional to the size of the nanoantena. Idea was first proposed by Robert L. Bailey in 1972 and received a patent in 1973 for an electromagnetic wave converter. The patented device was similar to modern nanoantane devices. Alvin M. Marks received a patent in 1984 for a device that explicitly stated the use of submicron antennas for the direct conversion of light power to electrical energy. The Marks device showed substantial improvements in efficiency over Bailey's device. In 1996, Guang H. Lin was the first to report the absorption of resonant light by a fabricated nanostructure and light rectification with frequencies in the visible range. Research on nanoanthenes is ongoing. Nanoparticles can be useful for converting solar radiation into electricity. Sufficient supplies of clean energy are intimately related to global stability, economic prosperity and quality of life. Finding energy sources to meet the growing global demand is one of the challenges of society for the next half century.
The world now uses energy at a rate of approximately 4.1x1020 J / year, equivalent to a continuous energy consumption of 13 trillion watts. Even with considerable energy conservation and efficiency measures, it is estimated that the 9 billion population increase in the Earth's population, coupled with rapid technological development and global economic growth, will exceed twice the energy demand (up to 30 TW) Demand (at 40 TW) by the end of the century. As a result, increased global energy demand and, as a consequence, the detrimental effects of hydrocarbon-based energy, such as global warming, air pollution, acid precipitation, ozone depletion and Forest are becoming increasingly apparent. To limit these drawbacks, adequate measures are needed to reduce dependence on fossil fuels and the search for clean and renewable alternative energy resources is one of the most urgent challenges for the sustainable development of human civilization. Our primary source of clean and abundant energy is the sun. Over 120,000TW of sun radiations reach the surface of the earth which far exceeds human needs.
The term nantenna (nano-antenna) is sometimes used to refer to an optical rectin, or an optical antenna by itself. At present, Idaho National Laboratories has designed an optical antenna to absorb wavelengths in the range of 3-15 μm. These wavelengths correspond to photon energies of 0.08 - 0.4 eV. Based on antenna theory, an optical antenna can efficiently absorb any wavelength of light as long as the antenna size is optimized for that specific wavelength. Ideally, antennas would be used to absorb light at wavelengths between 0.4 and 1.6 μm because these wavelengths have higher energy than far infrared (longer wavelengths) and represent approximately 85% of the Spectrum of solar radiation.