Abstract
The performance enhancement of polycrystalline Si solar cells by using an optimized discrete multilayer anti-reflection (AR) coating with broadband and omni-directional characteristics is presented. Discrete multilayer AR coatings are optimized by a genetic algorithm, and experimentally demonstrated by refractive-index tunable SiO2 nano-helix arrays and co-sputtered (SiO2)x(TiO2)1-x thin film layers. The optimized multilayer AR coating shows a reduced total reflection, leading to the high incident-photon-to-electron conversion efficiency over a correspondingly wide range of wavelengths and incident angles, offering a very promising way to harvest more solar energy by virtually any type of solar cells for a longer time of a day.
Original language | English |
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Pages (from-to) | A157-A166 |
Journal | Optics Express |
Volume | 21 |
Issue number | 101 |
DOIs | |
Publication status | Published - 2013 Jan 14 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics