scholarly journals Simulation mechanical stress influence to silicon solar cells by Comsol Multiphysics

2021 ◽  
Vol 10 (2) ◽  
pp. 469-472
Keyword(s):  
Mechanical Properties ◽  
Solar Cells ◽  
Solar Cell ◽  
Mechanical Stress ◽  
Comsol Multiphysics ◽  
Silicon Solar Cells ◽  
Stress Influence

We know the mechanical properties of silicon. However, little is known about the mechanical properties of silicon solar cells. Modeling is widely used in the study of solar cells. This article discusses in detail the effect of mechanical stress on solar cells. To do this, a model of the solar cell was created and simulated at Comsol Multiphysics. The results were presented visually and graphically. The results were tested for relevance and accuracy

scholarly journals Performance of Silicon Solar Cells under the Climatic Conditions of Bangladesh, Part III. Performance of PV Cells under Defuse Light and Applicability for Home Lighting

1970 ◽  
Vol 46 (1) ◽  
pp. 117-122 ◽  
Author(s):  
M Eusuf ◽  
M Khanam ◽  
S Khatun
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solid Surface ◽  
Tilt Angle ◽  
Crystalline Silicon ◽  
Climatic Conditions ◽  
Solar Panel ◽  
Silicon Solar Cells ◽  
Crystalline Silicon Solar Cell ◽  
Solar Home System

In part II of this series, it was reported that the solar home system (SHS) supplied by REB in some islands of the Meghna river in the district of Narsingdi could not meet the demand of the recipients in the rainy season when the sky remained overcast with cloud. The tilt angle for all installations was 45° facing south. In this study, effects of direct and diffuse sunlight with variation of tilt angles from 0° to 45° were studied using a mono crystalline silicon cell. Pyranometer and the solar panel were kept under identical conditions. Energy absorbed by the solar panel in diffuse sunlight was found 0.55% of that received by the Pyranometer under similar conditions showing that mono crystalline silicon solar cell of the type under study was not suitable for use in SHS. Moreover, the gap between the panel and the solid surface below it has significant effects on the efficiency of the solar cell. Further similar study using different kinds of cells- mono crystalline, poly crystalline and amorphous is needed for proper designs of SHS. Optimization of the gap between the panel and the solid surface below it is important for roof-mounted and ground-mounted panels. Key words: Silicon solar cells; Tilt angle; Diffuse light; Home lighting; Monocrystaline. DOI: http://dx.doi.org/10.3329/bjsir.v46i1.8114 Bangladesh J. Sci. Ind. Res. 46(1), 117-122, 2011   

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.

Black Silicon for Higher Efficiency in Solar Cells

2015 ◽  
Vol 787 ◽  
pp. 92-96
Author(s):  
Digvijay Raghunathan
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Black Body ◽  
Black Body Radiation ◽  
Silicon Solar Cells ◽  
Black Silicon ◽  
Manufacturing Cost ◽  
Nano Fabrication ◽  
Reflective Coating ◽  
Low Efficiency

The very low efficiency of solar cells can be attributed to a plethora of reasons. The most important reason being, reflection of sunlight from the solar cell surface. Most of the sunlight incident on the solar cells gets reflected back due to the smooth surface of the silicon wafers. This paper presents a novel method to avoid this by using black silicon solar cells. Black silicon tends to make use of the concept of black body radiation to absorb all the rays incident on it and thereby reducing the reflectivity of the solar cell. The nano-fabrication technique involves usage of special wet-etch techniques to achieve nano-sized pores on the surface of silicon. In case of normal solar cells, usually layers of a suitable anti-reflective coating are given which tend to minimize the amount of reflection. This unfortunately increases the manufacturing cost. The unfavourable conditions of heat and dirt further tend to soil the layer of anti-reflective coating, reducing the gains of anti-reflective coating. Thus, black silicon solar cells provide better efficiency while simultaneously reducing the fabrication cost.

Studies on Nanostructure ITO Thin Films on Silicon Solar Cells

2013 ◽  
Vol 678 ◽  
pp. 365-368
Author(s):  
Rangasamy Balasundraprabhu ◽  
E.V. Monakhov ◽  
N. Muthukumarasamy ◽  
B.G. Svensson
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Solar Cell ◽  
Short Circuit ◽  
Silicon Solar Cells ◽  
Shunt Resistance ◽  
Cell Parameters ◽  
Ito Film ◽  
Ito Thin Films ◽  
Ito Films

Nanostructure ITO thin films have been deposited on well cleaned glass and silicon substrates using dc magnetron sputtering technique. The ITO films are post annealed in air using a normal heater setup in the temperature range 100 - 400 °C. The ITO film annealed at 300°C exhibited optimum transparency and resistivity values for device applications. The thickness of the ITO thin films is determined using DEKTAK stylus profilometer. The sheet resistance and resistivity of the ITO films were determined using four probe technique. Finally, the optimized nanostructure ITO layers are incorporated on silicon solar cells and the efficiency of the solar cell are found to be in the range 12-14%. Other solar cell parameters such as fill factor(FF), open circuit voltage(Voc),Short circuit current(Isc), series resistance(Rs) and shunt resistance(Rsh) have been determined. The effect of ITO film thickness on silicon solar cells is also observed.

Improved light trapping effect for thin-film silicon solar cells fabricated on double-textured white glass substrate

2014 ◽  
Vol 92 (7/8) ◽  
pp. 920-923 ◽  
Author(s):  
Hidetoshi Wada ◽  
Keiichi Nishikubo ◽  
Porponth Sichanugrist ◽  
Makoto Konagai
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Light Trapping ◽  
Short Circuit ◽  
Silicon Solar Cells ◽  
Organic Chemical ◽  
Trapping Effect ◽  
Thin Film Silicon ◽  
Vapor Deposition Technique

Light trapping effect using rough surface transparent conductive oxide (TCO) is one of the best ways to achieve high efficiency thin-film silicon solar cells. Several types of rough ZnO film fabricated by metal organic chemical vapor deposition technique onto the glass, which are etched by reactive ion etching, have been proposed so far as promising TCO substrates. In this paper, newly developed ZnO substrate with extremely high light scattering property comparing with typical pyramidal texture one was developed. By applying this newly developed ZnO substrate to the solar cell, higher short circuit current of about 2% has been achieved comparing with typical pyramidal texture one without sacrificing other parameters. This result showed that the newly developed substrate is suitable as a front TCO substrate for high performance thin-film silicon solar cell.

Water as infrared filter for silicon solar cell efficiency enhancement for Kerman province of Iran as a talent region for solar energy production

2017 ◽  
Vol 14 (5) ◽  
pp. 363-367 ◽  
Author(s):  
Mohammad Bagher Askari ◽  
Mohammad Reza Bahrampour ◽  
Vahid Mirzaei ◽  
Amir Khosro Beheshti Marnani ◽  
Mirhabibi Mohsen
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solar Energy ◽  
Energy Production ◽  
Silicon Solar Cell ◽  
Silicon Solar Cells ◽  
Efficiency Enhancement ◽  
Content Type ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

Purpose The aim of this paper is to apply a watery infrared filter for silicon solar cell efficiency enhancement in Kerman province of Iran as a talent region for solar energy production. Design/methodology/approach With this research, the water is applied as a filter for silicon solar cells in different volumes and thicknesses. Findings The obtained results showed that using various amounts of water could be a suitable choice for increasing the efficiency of silicon solar cells. Originality/value Other wavelength regions just cause the increase in the entropy and decrease in the efficiency. With this research, the water is applied as a filter for silicon solar cell in different volumes and thickness. The obtained results showed that using different thicknesses of water could be suitable choice for increasing the efficiency of silicon solar cell.

Modeling of Advanced Light Trapping Approaches in Thin-Film Silicon Solar Cells

2011 ◽  
Vol 1321 ◽  
Author(s):  
Miro Zeman ◽  
Olindo Isabella ◽  
Klaus Jäger ◽  
Pavel Babal ◽  
Serge Solntsev ◽  
...  
Keyword(s):  
Thin Film ◽  
Zinc Oxide ◽  
Solar Cells ◽  
Solar Cell ◽  
Light Trapping ◽  
Spherical Particles ◽  
Silicon Solar Cells ◽  
Amorphous Silicon Solar Cell ◽  
Thin Film Silicon ◽  
Negative Effect

ABSTRACTDue to the increasing complexity of thin-film silicon solar cells, the role of computer modeling for analyzing and designing these devices becomes increasingly important. The ASA program was used to study two of these advanced devices. The simulations of an amorphous silicon solar cell with silver nanoparticles embedded in a zinc oxide back reflector demonstrated the negative effect of the parasitic absorption in the particles. When using optical properties of perfectly spherical particles a modest enhancement in the external quantum efficiency was found. The simulations of a tandem micromorph solar cell, in which a zinc oxide based photonic crystal-like multilayer was incorporated as an intermediate reflector (IR), demonstrated that the IR resulted in an enhanced photocurrent in the top cell and could be used to optimize the current matching of the top and bottom cell.

Periodic Structures for Improved Light Management in Thin-film Silicon Solar Cells

2008 ◽  
Vol 1101 ◽  
Author(s):  
Janez Krc ◽  
Andrej Campa ◽  
Stefan L. Luxembourg ◽  
Miro Zeman ◽  
Marko Topic
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Photonic Crystal ◽  
Amorphous Silicon ◽  
Periodic Structures ◽  
Light Trapping ◽  
Silicon Solar Cells ◽  
Thin Film Silicon ◽  
Light Management

AbstractAdvanced light management in thin-film solar cells is important in order to improve the photo-current and, thus, to raise up the conversion efficiencies of the solar cells. In this article two types of periodic structures ¡V one-dimensional diffraction gratings and photonic crystals,are analyzed in the direction of showing their potential for improved light trapping in thin-film silicon solar cells. The anti-reflective effects and enhanced scattering at the gratings with the triangular and rectangular features are studied by means of two-dimensional optical simulations. Simulations of the complete microcrystalline solar cell incorporating the gratings at all interfaces are presented. Critical optical issues to be overcome for achieving the performances of the cells with the optimized randomly textured interfaces are pointed out. Reflectance measurements for the designed 12 layer photonic crystal stack consisting of amorphous silicon nitride and amorphous silicon layers are presented and compared with the simulations. High reflectance (up to 99 %) of the stack is measured for a broad wavelength spectrum. By means of optical simulations the potential for using a simple photonic crystal structure as a back reflector in an amorphous silicon solar cell is demonstrated.

The Business of Fast ALD Equipment for Depositing Alumina Passivation Layers on Crystalline Silicon Solar Cells.

2011 ◽  
Vol 1353 ◽  
Author(s):  
Ad Vermeer ◽  
Roger Gortzen ◽  
P. Poodt ◽  
F. Roozeboom
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Throughput ◽  
Crystalline Silicon ◽  
Atomic Layer ◽  
Silicon Solar Cells ◽  
Alumina Layer ◽  
Solar Cell Efficiency ◽  
Crystalline Silicon Solar Cells ◽  
Cell Efficiency

ABSTRACTAtomic Layer Deposition (ALD) is a gas phase deposition technique for depositing very high quality thin films with an unsurpassed conformality. The main drawback of ALD however is the very low deposition rate (~ 1 nm/min). Recently, record deposition rates for alumina of up to 1 nm/s were reached using spatial ALD, while maintaining the typical assets regarding film quality as obtained by conventional, slow ALD [1]. This allows for ALD at high throughput numbers.One interesting application is passivation of crystalline silicon solar cells. Applying a thin alumina layer is reported to increase solar cell efficiency and enables the use of thinner wafers, thus reducing the main cost factor [2]. In this paper we report on the latest progress made by SoLayTec that delivered a working prototype of a system realizing full area single sided deposition of alumina on 156 x 156 mm2, mono- and multi crystalline silicon wafers for solar cell applications. The alumina layers showed excellent passivation. Based on this concept, a high-throughput ALD deposition tool is being developed targeting throughput numbers of up to 3000 wafers/hr. Finally, we report on the process of commercializing this technology.

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