The design and optimization of advanced multijunction solar cells using the Silvaco ATLAS software package

Michael, Sherif; Bates, Andrew

doi:10.1016/j.solmat.2004.07.051

Cited by 39 publications

(19 citation statements)

References 2 publications

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“…Effects of other cell parameters, such as doping level, different bandgap materials and others were also researched. A detailed novel general optimization approach using genetic algorithm for multi-junction cells design, along with the development of a state-of the-art quad-junction cell is presented in another publication [14].…”

Section: Optimizationmentioning

confidence: 99%

A novel approach for the modeling of advanced photovoltaic devices using the SILVACO/ATLAS virtual wafer fabrication tools

Michael¹

2005

Solar Energy Materials and Solar Cells

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Section: Optimizationmentioning

confidence: 99%

A novel approach for the modeling of advanced photovoltaic devices using the SILVACO/ATLAS virtual wafer fabrication tools

Michael¹

2005

Solar Energy Materials and Solar Cells

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“…The ability of the ATLAS device simulator to accurately a model solar cell characteristic has been shown [10,11] . The detailed outputs available to the solar cell designer allow for efficient and effective simulation and optimization of even most advanced solar cell designs.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Single Layer SiO2 and Si3N4 as Antireflection Coating on Silicon Solar Cell Using Silvaco Software

Lennie

Abdullah²,

Shaari

et al. 2009

American Journal of Applied Sciences

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Abstract:The main objectives was to investigate and enhance the short circuit current density, J sc and also to improve the efficiency of silicon solar cell by fabricating a layer of silicon dioxide (SiO 2 ) and silicon nitride (Si 3 N 4 ) coatings on silicon solar cell. This fabrication carried out on high temperature during annealing process from 800-1050°C and variable thickness of antireflection coating (ARC) layer from 50-90 nm thick. The photovoltaic properties of Si 3 N 4 layer have been compared with SiO 2 layer to determine which material is suitable in fabricating single layer ARC. Solar cell simulation could be useful for time saving and cost consumption. Problem statement: The Silvaco software is not widely used in designing the 2D solar cell devices because there are lots of 1D, 2D and 3D-simulation beside Silvaco software such as MicroTec, SCAPS-1D. Approach: The silicon dioxide (SiO 2 ) and silicon nitride (Si 3 N 4 ) coating have been modeled and fabricated on silicon solar cell by using Silvaco software packaging. Results: For SiO 2 results, the FF value is approximately 0.758 and η maximum 9.43%. In annealing process, the temperature becomes higher resulted increasing of pn junction depth. However, not to V oc and J sc values, both parameters were slowly decreased when temperature increased. Meanwhile, when the thickness of SiO 2 layer is increased, the parameters of pn junction depth, J sc , V oc , FF and η were decreased slowly. As for Si 3 N 4 result, the calculated FF approximately 0.758 and η maximum is 9.57%. During annealing process, the temperature increasing constantly follows the increasing of pn junction depth and J sc , meanwhile the V oc is decreased slowly. In variable Si 3 N 4 thickness simulation, the output parameters of pn junction depth, J sc , V oc , FF and η were decreased when the thickness increased 10 nm each simulation. Conclusion: The optimum temperature during annealing process for SiO 2 is 950°C, while for Si 3 N 4 is 1050°C. For the thickness analysis, the optimum ARC thickness for SiO 2 and Si 3 N 4 layer is 50 nm both.

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“…ATLAS predicts the electrical characteristics of physical structures by simulating the transport of carriers through a 2-D grid [13]. A schematic diagram and the simulation parameters of the IBC cells used in the simulation are shown in Fig.…”

Section: Simulation Methodologymentioning

confidence: 99%

A simulation study on the electrical structure of interdigitated back-contact silicon solar cells

Kang

Song

Kim³

et al. 2015

Journal of the Korean Physical Society

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In this paper, a simulation for interdigitated back-contact (IBC) silicon solar cells was performed by using Silvaco TCAD ATLAS to investigate the cell's electrical properties. The impacts of various parameters, including the depth of the front surface field(FSF), the FSF peak doping concentration, the depths of the emitter and the back surface field(BSF), the peak doping concentrations of the emitter and BSF, the base doping, and the bulk lifetime on the output characteristics like the light current-voltage curves and the internal quantum efficiency of the IBC solar cell, were investigated. The light absorption was determined by adjusting the antireflection coating and the Al thickness. The FSF must be thin and have a low doping concentration for high-efficiency IBC cells. If the conversion efficiency is to be improved, a thick emitter and a high doping concentration are needed. Because of the low resistivity of the Si substrate, the series resistance was reduced, but recombination was increased. With a high-resistivity Si substrate, the opposite trends were observed. By counter-balancing the series resistance and the recombination, we determined by simulation that the optimized resistivity for the IBC cells was 1 Ω·cm. Because all metal electrodes in the IBC cells are located on the back side, a higher minority carrier lifetime showed a higher efficiency. After the various parameters had been optimized, texturing and surface recombination were added into the simulation. The simulated IBC cells showed a short-circuit current density of 42.89 mA/cm 2 , an open-circuit voltage of 714.8 mV, a fill factor of 84.04%, and a conversion efficiency of 25.77%.

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The design and optimization of advanced multijunction solar cells using the Silvaco ATLAS software package

Cited by 39 publications

References 2 publications

A novel approach for the modeling of advanced photovoltaic devices using the SILVACO/ATLAS virtual wafer fabrication tools

A novel approach for the modeling of advanced photovoltaic devices using the SILVACO/ATLAS virtual wafer fabrication tools

Fabrication of Single Layer SiO2 and Si3N4 as Antireflection Coating on Silicon Solar Cell Using Silvaco Software

A simulation study on the electrical structure of interdigitated back-contact silicon solar cells

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