Silicon

With an increasing demand of digitalization of human activities, needs of software and hardware increasing geometrical proportion. So, main ingredient of this system is obviously silicon and silicon as a semiconductor material. In addition, silicon materials have a wide range of applications in textiles, construction, sealants and adhesives, paper and film, paints and coatings, household products, health care, etc in different sectors. With the environmental awareness, renewable source of pure silicon is supposed to be the most important component of consideration. Natural, Biological, Renwewable sources and their waste materials will defiantly a great source of pure Silicon. Bangladesh is a country of biodiversity having distinct six seasons. It is an agrigrain country with huge agro-wastes having a good content of silicon easily available and a potential renewable source of organic Silicon. Here, short information as regard various sources of Si available in Bangladesh are given for consideration of interested potential entrepreneurs who think inclusive development with green technology by investing in research, development and production in this sector with some economic and technical indicators.

Increase of the efficiency of the solar cells which are produced in industry, is important. Increase of efficiency of solar cells was identified, when nanoplasmonics phenomenon was formed in solar cell. So, in this article, influence of nanoparticles Pt, Au, Ag and Cu on properties of silicon based solar cell has been studied. When nanoparticle Pt was inclused in silicon based solar cell, its efficiency increased 2.31 times. Optimal radius of nanoparticule Pt was identified to be between 15-25 nm.