Abstract
This work discusses regular particle arrays as nanostructured front layers for possible application in photovoltaic devices yielding strongly increased forward scattering. I used a rigorous plane-wave method to investigate multi-type particle layers combining different radii and configurations. The absorbance was enhanced compared to the bare Si wafer and I demonstrated on mixing particles a broadband boost in the absorbance within the homogeneous wafer region, excluding parasitic absorption in the particle layer. I studied the efficiency enhancement for varying geometries. Multi-type layers made of Si disks with two different radii achieved up to 33% (24%) and with four different radii up to 40% (30%) improvement in the short circuit current and integrated absorbance, respectively, without yet standard anti-reflection coatings. Broadband efficiency enhancement for metal multi-type layers was not observed because they show strong parasitic absorption and boost the absorbance only in narrow wavelength regions. (C) 2016 Optical Society of America
Original language | English |
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Journal | Applied Optics |
Volume | 55 |
Issue number | 28 |
Pages (from-to) | 7980-7986 |
Number of pages | 7 |
ISSN | 1559-128X |
DOIs | |
Publication status | Published - 2016 |
Keywords
- OPTICS
- SOLAR-CELL APPLICATIONS
- SILICON
- PHOTOLUMINESCENCE
- NANOPARTICLES
- PLASMONICS
- EFFICIENCY
- DEVICES
- DESIGN
- LIMIT
- SI
- physics.optics