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

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Abstract:

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.

Keywords: ATOMIC LAYER DEPOSITION; LIFETIME; MONOCRYSTALLINE SILICON; NANO-TEXTURING; REFLECTANCE; SOLAR CELLS

Document Type: Short Communication

DOI: https://doi.org/10.1166/jnn.2011.4161

Publication date: 2011-04-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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