However, the high aspect ratio feature of some 3-D structures leads to deterioration of internal electric field and carrier collection capability, which reduces device power conversion efficiency (PCE). Here, we report high performance flexible thin-film amorphous silicon solar cells with a unique and effective light trapping scheme.
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An efficient light trapping scheme based on textured conductive photonic crystal back reflector for performance improvement of amorphous silicon solar cells Appl. Phys. Lett. 105, 073506 (2014); 10.1063/1.4893606 Solar light trapping in slanted conical-pore photonic crystals: Beyond statistical ray trapping
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A design to enhance light absorption in thin-film amorphous silicon (a-Si) solar cells is proposed. It is achieved by patterning a double-groove grating with waveguide layer as the absorbing layer and coating a double-groove grating anti-reflective layer in the front window of the cell.
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May 01, 2016· A design to enhance light absorption in thin-film amorphous silicon (a-Si) solar cells is proposed. It is achieved by patterning a double-groove grating with waveguide layer as the absorbing layer and coating a double-groove grating anti-reflective layer in the front window of the cell.
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Sep 16, 2016· Plasmonics is a new promising approach to enhance the light absorption in the thin film solar cells. The plasmonic effects of the metal nanoparticle introduced in thin film solar cells could also be detrimental for the higher optical absorption and hence the higher efficiency of solar cells. The effects of the Ag nanospheres arrays on the absorption of amorphous silicon solar cells wereGet a Quote
A directionally selective multilayer filter is applied to a hydrogenated amorphous silicon solar cell to improve the light trapping. The filter prevents non-absorbed long-wavelength photons from leaving the cell under oblique angles leading to an enhancement of the total optical path length for weakly absorbed light within the device by a factor of κr = 3.5.
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We present a theoretical study of crystalline and amorphous silicon thin-film solar cells with a periodic pattern on a sub-micron scale realized in the silicon layer and filled with silicon dioxide right below a properly designed antireflection (AR) coating. The study and optimization of the structure as a function of all the photonic lattice parameters, together with the calculation of theGet a Quote
The results further indicate that this enhanced light trapping is achieved with minimal parasitic absorption losses in the deposited transparent conductive oxide for the nano-patterned substrate thin-film amorphous silicon solar cell configuration. Optical simulations are in good agreement with experimental results, and also show a significant
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Abstract A design to enhance light absorption in thin-film amorphous silicon (a-Si) solar cells is proposed. It is achieved by patterning a double-groove grating with waveguide layer as the absorbing layer and coating a double-groove grating anti-reflective layer in the front window of the cell. The broadband absorption under normal incidence can be achieved for both TE and TM polarizations.Get a Quote
A design to enhance light absorption in thin-film amorphous silicon (a-Si) solar cells is proposed. It is achieved by patterning a double-groove grating with waveguide layer as the absorbing layer and coating a double-groove grating anti-reflective layer in the front window of the cell. The broadband absorption under normal incidence can be achieved for both TE and TM polarizations.Get a Quote
The goal of this work is to reduce the production cost of thin-film silicon solar cells, by using PET substrates and thereby maintain a reasonable efficiency. The authors studied different kinds of textured back reflectors fabricated on glass and PET with the aim of increasing the short-circuit current density (J/sub sc/) in a-Si:H and /spl mu/c-Si:H n-i-p-type solar cells: random textures and
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Photonic crystal based back reﬂectors for light management and enhanced absorption in amorphous silicon solar cells difﬁcult to absorb in thin a-Si:H layers. Light-trapping is essential to
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Mar 01, 2012· The key solution is to enhance the optical path length by introducing efficient light trapping in the cell structures. Light trapping is the standard technique for harvesting the incoming sunlight to improve the TF-Si cell efficiencies. Introducing textured interfaces can lead to reduced reflection losses and enhanced scattering and diffraction of light in the device.Get a Quote
Light trapping and incoupling of light in thin-film microcrystalline silicon solar cells with periodic triangular profiles was investigated. Compared to that of a solar cell on a smooth substrate with 1 µm thick absorber layer, the short circuit current and quantum efficiency are enhanced with the introduction of triangular texturing.Get a Quote
Jun 01, 2018· We study light trapping in hydrogenated amorphous silicon thin film solar cells fabricated by plasma-enhanced chemical vapor deposition on various nanostructured back reflectors. The back reflectors are patterned using polystyrene assisted lithography.Get a Quote
May 01, 2010· Optical absorption losses limit the efficiency of thin-film solar cells. We demonstrate how to increase the absorption in hydrogenated amorphous silicon solar cells by using a directionally selective optical multilayer filter covering the front glass. The filter transmits perpendicularly incident photons in the wavelength range 350 nm - 770 nm. In the regime of low absorptance, i.e. large
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Self-organized broadband light trapping in thin film amorphous silicon solar cells To cite this article: C Martella et al 2013 Nanotechnology 24 225201 View the article online for updates and enhancements. Related content Light scattering properties of self-organized nanostructured substrates for thin-film solar …Get a Quote
Solar energy is a clean and renewable energy source that has the potential to replace fossil fuel with effective con- version of solar energy to electrical power. Research into thin film solar cell...
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trapping effect within thin film silicon solar cells deposited on flexible plastic substrates. In this context, different nano-structure shapes useable for the back contacts of amorphous silicon solar cells on plastic substrates have been investigated: random textures and gratings. The optimisation of such back reflectors is so far empirical.Get a Quote
Mar 31, 2010· There are limited options to improve light trapping in thin-film silicon solar cells. With a thickness of a few microns or less, thin-film solar cells do not support traditional light-trapping techniques, such as the surface texturing extensively used in wafer-based silicon solar cells (where micron-sized pyramids are etched on the frontGet a Quote
May 10, 2010· Enhanced light trapping in thin amorphous silicon solar cells by directionally selective optical... Ulbrich, Carolin; Peters, Marius; Tayyib, Muhammad; Blaesi, Benedikt; Kirchartz, Thomas 2010-05-10 00:00:00 Optical absorption losses limit the efficiency of thin-film solar cells. We demonstrate how to increase the absorption in hydrogenated amorphous silicon solar cells by …Get a Quote
Mar 30, 2021· Low-cost hydrogenated amorphous silicon solar cells (a-Si:H) can perform better and be more competitive by including nanostructures. An optimized nano-dimer structure embedded in …
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