Nearly Zero Reflectance of Nano-Pyramids and Dual-Antireflection Coating Structure for Monocrystalline Silicon Solar Cells

作者：Chang Hyo Sik^*; Jung Hyun Chul

来源：Journal of Nanoscience and Nanotechnology, 2011, 11(4): 3680-3683.

DOI：10.1166/jnn.2011.4161

• Nano-Texturing
• Solar Cells
• Reflectance
• Monocrystalline Silicon
• Atomic Layer Deposition
• Lifetime

The effect of two-step surface treatment on monocrystalline silicon solar cells was investigated. We changed the nanostructure on pyramidal surfaces by wet nano-texturing so that less light is reflected. The two-step nano-texturing process reduces the average reflectance to about 4% in the 300-1100 nm wavelength region. The use of an antireflection coating resulted in an effective reflectance of 1%. We found that the reflectance obtained by wet nano-texturing was lower than that obtained by conventional alkaline texturing. Thus, we can expect a further increase in the efficiency of silicon solar cells with two-step nano-texturing by a wet chemical process.

• 出版日期2011-4