Abstract
The angle-dependent reflectivity of several surface structures was analyzed and evaluated with the viewpoint of solar cell applications. Numerical analysis showed that a Si subwavelength structure (SWS) maintains a lower reflectivity at large incident angles than conventional light-trapping techniques such as a random pyramid texture, and that it can contribute to increasing the output power of solar cells under oblique irradiation. This wide-angle antireflection effect was demonstrated by fabricating test crystalline Si cells with several surface structures including a SWS and measuring their angle-dependent short-circuit current densities.
Original language | English |
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Pages (from-to) | 3333-3336 |
Number of pages | 4 |
Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
Volume | 46 |
Issue number | 6 A |
DOIs | |
Publication status | Published - 2007 Jun 6 |
Keywords
- Angle dependence
- Antireflection
- Light-trapping
- Solar cell
- Subwavelength structure
- Surface texture
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)