Optimization of anti-reflection moth-eye structures for use in crystalline silicon solar cells
Article first published online: 14 MAY 2010
Copyright © 2010 John Wiley & Sons, Ltd.
Progress in Photovoltaics: Research and Applications
Volume 19, Issue 2, pages 134–140, March 2011
How to Cite
Yamada, N., Kim, O. N., Tokimitsu, T., Nakai, Y. and Masuda, H. (2011), Optimization of anti-reflection moth-eye structures for use in crystalline silicon solar cells. Prog. Photovolt: Res. Appl., 19: 134–140. doi: 10.1002/pip.994
- Issue published online: 23 FEB 2011
- Article first published online: 14 MAY 2010
- Manuscript Revised: 24 DEC 2009
- Manuscript Received: 18 MAY 2009
- crystalline silicon solar cells;
An anti-reflection (AR) moth-eye structure made of acrylic resin and deposited on a polyethylene terephthalate (PET) substrate was optimized in the wavelength range from 400 to 1170 nm; crystalline silicon (c-Si) solar cells function efficiently in this wavelength range. The rigorous coupled wave analysis (RCWA) method was used for optical simulation, and the Taguchi method was used for efficient optimization. The simulation results showed that the reflectance of the optimized structure over the above-mentioned wavelength range was less than 0.87% and that a minimal reflectance of 0.1% was observed at 400 nm. Experimental results showed that the reflectance of a fabricated moth-eye structure was less than 1.0% in the wavelength range and that a minimal reflectance of 0.55% was observed at 700 nm. A c-Si solar cell, which was enclosed in a polyvinyl butyral (PVB) layer of uniform thickness, was coated with the fabricated moth-eye film, and it was observed that the moth-eye film increased electric generation (EG) up to 15%, depending on the incident angle. Further, a daily increase in EG of up to 8.7% was estimated on a clear summer day in Japan when the moth-eye film was used. Copyright © 2010 John Wiley & Sons, Ltd.