Diffractive Interference Design Using Front and Rear Surface Metal and Dielectric Nanoparticle Arrays for Photocurrent Enhancement in Thin Crystalline Silicon Solar Cells
| Autor: | Nicholas J. Ekins-Daukes, Stefan A. Maier, Ounsi El Daif, Vincenzo Giannini, Samarth Jain, Enrico Massa, N. P. Hylton |
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| Rok vydání: | 2014 |
| Předmět: |
Photocurrent
Materials science Silicon business.industry Nanophotonics chemistry.chemical_element Dielectric Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Optics chemistry law Solar cell Optoelectronics Plasmonic solar cell Crystalline silicon Electrical and Electronic Engineering Thin film business Biotechnology |
| Zdroj: | ACS Photonics. 1:871-877 |
| ISSN: | 2330-4022 |
| Popis: | Using an interference design model we were able to quickly optimize the nanophotonic control afforded by metal and dielectric nanoparticle arrays to enhance the absorption and photocurrent in a thin crystalline silicon solar cell, which were simulated via full field electromagnetic FEM calculations. Fabry–Perot interference fringes introduced by placing structures on the front and rear surfaces are shown to lead to significant enhanced light trapping in the absorbing silicon layer. We report a 46.7% increase in the estimated short-circuit photocurrent over the solar spectrum (AM 1.5G) range of 300–1100 nm for a 1 μm thick crystalline silicon solar cell with metal and dielectric nanoparticle arrays designed using interference modeling. The enhancement was achieved by placing nanoparticle arrays on the front and rear surface of the cell, where the particles on the front surface are dielectric (Si) and those on the rear surface are metal (Al). Additionally, an estimated photocurrent enhancement of 29.4% was ... |
| Databáze: | OpenAIRE |
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