期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
期号：TAPSA
页码：144
出版社：S&S Publications
摘要：Solar energy is a well known form of non-conventional and renewable energy. Though sun’s light energy isavailable in plenty, but still it is not widely used because of its drawbacks namely: a) High cost of production involved inthe production of solar cells, b) Most of the photons (particles of light) are left unabsorbed due to mismatch between theenergy of photons and energy of semiconductor material c) loss of photogenerated electrons due to recombination withholes of p doped material.By Nanotechnological approaches we can replace conventional solar cells by multijunction solar cells made ofdifferent semiconducting materials and using different methods for synthesis of cells & by the use of nanoscaleheterojunctions we can reduce the thickness of solar cells and thus increase the surface area to volume ratio. As the amountof raw material is lowered, thus cost of production is reduced. Efficiency also increases as the cell absorbs photons ofdifferent energies. Thus these nanosolar cells can be easily painted on the roofs of buildings, buses, cars etc. to trap thesolar energy.
