多晶硅太陽能電池片SE工藝優(yōu)化的研究
[Abstract]:Solar energy is a kind of clean and pollution-free renewable energy, which is of great significance to the alleviation of energy crisis and the increasing environmental pollution. In recent years, the production of solar cells has grown at an unprecedented rate, with polysilicon solar cells occupying the main market. The efficiency of the conventional polycrystalline solar cell is affected by the structure of the battery, so that the efficiency is low and the cost is high in the industrial production. The application of a new type of polycrystalline silicon solar cell structure selective emitter (SE) is of great significance for improving the conversion efficiency and reducing the cost. This paper mainly carries out the research work from the following aspects (1) After the basic concept of the solar cell is known, the principle, the physical model, the structural parameters and the performance of the polycrystalline silicon solar cell SE technology are deeply studied. in that study, (2) the conventional polycrystalline silicon solar cell structure is affected by the diffusion surface concentration and the junction depth: the diffusion requires low doping to reduce carrier recombination, but after the low doping, the contact resistance is increased, and good ohmic contact is difficult to form; therefore, the polycrystalline silicon solar cell is limited, the selective emitter (SE) technology is heavily doped in the electrode contact area, (3) The optimization and development direction of the following selective emitter process is proposed in this paper. It is hoped to further improve the conversion efficiency, reduce the manufacturing cost and realize the cleaning at an early date. In this paper, the process parameters in the industrial process are optimized by the research on the process optimization of the silicon solar cell, so that the photoelectric conversion efficiency of the polycrystalline silicon solar cell is improved by about 0.6%, reaching 17.6%, and the single-piece of the polycrystalline silicon solar cell
【學(xué)位授予單位】:中國科學(xué)院大學(xué)(工程管理與信息技術(shù)學(xué)院)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TM914.4
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