Model-based Quantitative Assessment of Crystallinity and Parasitic Absorption in Microcrystalline Silicon Solar Cells

2012 ◽  
Vol 1426 ◽  
pp. 383-387
Author(s):  
Thomas Lanz ◽  
Corsin Battaglia ◽  
Christophe Ballif ◽  
Beat Ruhstaller
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Light Scattering ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Quantitative Assessment ◽  
Silicon Solar Cells ◽  
Normalization Procedure ◽  
Microcrystalline Silicon ◽  
Scattering Model

ABSTRACTWe investigate the influence of the crystallinity of the absorber layer and parasitic absorption in the doped layers and electrodes on the external quantum efficiency and reflection of microcrystalline silicon (μc-Si:H) solar cells. Using an optical light scattering model we systematically study variations in the crystallinity and validate a simple normalization procedure that allows assessing the gains that can be achieved by reducing the parasitic absorption. The optimization potential is demonstrated with solar cell samples with increased crystallinity and eliminated parasitic absorption.

A large-area luminescent downshifting layer containing an Eu3+ complex for crystalline silicon solar cells

2020 ◽  
Vol 49 (15) ◽  
pp. 4725-4731
Author(s):  
Daqing Yang ◽  
Haiduo Liang ◽  
Yujie Liu ◽  
Man Hou ◽  
Liping Kan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Polyvinyl Alcohol ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Crystalline Silicon ◽  
Silicon Solar Cells ◽  
Large Area ◽  
Crystalline Silicon Solar Cells ◽  
Si Solar Cell

We present a large-area luminescent down-shifting layer consists of polyvinyl alcohol embedding a newly synthesized ternary Eu3+ complex. C-Si solar cell coated with this layer displayed an enhancement of ~15% in external quantum efficiency.

scholarly journals Extended light scattering model incorporating coherence for thin-film silicon solar cells

2011 ◽  
Vol 110 (3) ◽  
pp. 033111 ◽  
Author(s):  
Thomas Lanz ◽  
Beat Ruhstaller ◽  
Corsin Battaglia ◽  
Christophe Ballif
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Light Scattering ◽  
Silicon Solar Cells ◽  
Scattering Model ◽  
Thin Film Silicon

scholarly journals Studying of Perovskite Nanoparticles in PMMA Matrix Used As Light Converter for Silicon Solar Cell

2017 ◽  
Vol 62 (3) ◽  
pp. 1733-1739 ◽  
Author(s):  
M. Lipiński ◽  
R.P. Socha ◽  
A. Kędra ◽  
K. Gawlińska ◽  
G. Kulesza-Matlak ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Quantum Efficiency ◽  
Short Wavelength ◽  
Silicon Solar Cell ◽  
Antireflection Coating ◽  
Silicon Solar Cells ◽  
Pmma Layer ◽  
Pmma Matrix ◽  
Perovskite Nanoparticles

AbstractThe nanoparticles of CH3NH3PbBr3hybrid perovskites were synthesized. These perovskite nanoparticles we embedded in polymethyl methacrylate (PMMA) in order to obtain the composite, which we used as light converter for silicon solar cells. It was shown that the composite emit the light with the intensity maximum at about 527 nm when exited by a short wavelength (300÷450 nm) of light. The silicon solar cells were used to examine the effect of down-conversion (DC) process by perovskite nanoparticles embedded in PMMA. For experiments, two groups of monocrystalline silicon solar cells were used. The first one included the solar cells without surface texturization and antireflection coating. The second one included the commercial cells with surface texturization and antireflection coating. In every series of the cells one part of the cells were covered by composite (CH3NH3PbBr3in PMMA) layer and second part of cells by pure PMMA for comparison. It was shown that External Quantum Efficiency EQE of the photovoltaic cells covered by composite (CH3NH3PbBr3in PMMA) layer was improved in both group of the cells but unfortunately the Internal Quantum Efficiency was reduced. This reduction was caused by high absorption of the short wavelength light and reabsorption of the luminescence light. Therefore, the CH3NH3PbBr3perovskite nanoparticles embedded in PMMA matrix were unable to increase silicon solar cell efficiency in the tested systems.

Increase in external quantum efficiency of encapsulated silicon solar cells from a luminescent down-shifting layer

2009 ◽  
Vol 17 (3) ◽  
pp. 191-197 ◽  
Author(s):  
Keith R. McIntosh ◽  
Gay Lau ◽  
James N. Cotsell ◽  
Katherine Hanton ◽  
Derk L. Bätzner ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Silicon Solar Cells
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