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Silicon Solar Cells: Past, Present and the Future
이윤정,김병성,S. M. Ifitiquar,박철민,이준신 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.65 No.3
There has been a great demand for renewable energy for the last few years. However, the solar cellindustry is currently experiencing a temporary plateau due to a sluggish economy and an oversupplyof low-quality cells. The current situation can be overcome by reducing the production cost andby improving the cell is conversion efficiency. New materials such as compound semiconductor thinfilms have been explored to reduce the fabrication cost, and structural changes have been exploredto improve the cell’s efficiency. Although a record efficiency of 24.7% is held by a PERL - structuredsilicon solar cell and 13.44% has been realized using a thin silicon film, the mass production of thesecells is still too expensive. Crystalline and amorphous silicon - based solar cells have led the solarindustry and have occupied more than half of the market so far. They will remain so in the futurephotovoltaic (PV) market by playing a pivotal role in the solar industry. In this paper, we discusstwo primary approaches that may boost the silicon - based solar cell market; one is a high efficiencyapproach and the other is a low cost approach. We also discuss the future prospects of various solarcells.