한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2010년도 하계학술대회 논문집
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- Pages.249-249
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- 2010
Low reflectance of sub-texturing for monocrystalline Si solar cell
- Chang, Hyo-Sik (Korea Institute of Ceramic Engineering and Technology, Engineering Ceramic Center) ;
- Jung, Hyun-Chul (Korea Institute of Ceramic Engineering and Technology, Engineering Ceramic Center) ;
- Kim, Hyoung-Tae (Korea Institute of Ceramic Engineering and Technology, Engineering Ceramic Center)
- 발행 : 2010.06.16
초록
We investigated novel surface treatment and its impact on silicon photovoltaic cells. Using 2-step etching methods, we have changed the nanostructure on pyramid surface so that less light is reflected. This work proposes an improved texturing technique of mono crystalline silicon surface for solar cells with sub-nanotexturing process. The nanotextured silicon surface exhibits a lower average reflectivity (~4%) in the wavelength range of 300-1100nm without antireflection coating layer. It is worth mentioning that the surface of pyramids may also affect the surface reflectance and carrier lifetime. In one word, we believe nanotextruing is a promising guide for texturization of monocrystalline silicon surface.
키워드