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Light trapping with titanium dioxide diffraction gratings fabricated by nanoimprinting
- Source :
- Progress in Photovoltaics: Research and Applications. 22:587-592
- Publication Year :
- 2012
- Publisher :
- Wiley, 2012.
-
Abstract
- Dielectric scattering structures are a promising way of trapping light in solar cells. Titanium dioxide is a particularly attractive candidate material because of its high refractive index and ability to be deposited on a finished solar cell. Here, we present an experimental demonstration of photocurrent enhancement in thin film recrystallised silicon solar cells using TiO2 pillar arrays fabricated on the rear of the cells using nanoimprint lithography. A short circuit current enhancement of 19% is measured experimentally, and excellent agreement with numerical simulations is obtained. We show numerically that by replacing the Ag capping present on the cells with a detached rear Ag back reflector, the enhancement could reach 37%. Copyright © 2012 John Wiley & Sons, Ltd.
- Subjects :
- Photocurrent
Materials science
Silicon
Renewable Energy, Sustainability and the Environment
business.industry
chemistry.chemical_element
Condensed Matter Physics
7. Clean energy
Electronic, Optical and Magnetic Materials
Nanoimprint lithography
law.invention
chemistry.chemical_compound
Optics
chemistry
law
Solar cell
Titanium dioxide
Optoelectronics
Plasmonic solar cell
Electrical and Electronic Engineering
Thin film
business
Diffraction grating
Subjects
Details
- ISSN :
- 10627995
- Volume :
- 22
- Database :
- OpenAIRE
- Journal :
- Progress in Photovoltaics: Research and Applications
- Accession number :
- edsair.doi...........51d9a4017d9231dfa91ddfb470161c26