Light concentration solar cell: temperature proper and dynamic effects on electrical parameters determined by using J-V and P-V characteristics

Savadogo, Mahamadi; Konfé, Amadou; Sourabié, Idrissa; Soro, Boubacar; Konaté, Ramatou; Zoungrana, M.; Zerbo, Issa; Bathiébo, Dieudonné Joseph

doi:10.4314/gjpas.v27i3.10

Cited by 3 publications

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“…(3) the incident light is assumed to be multispectral and the quasineutral base assumption is made (Savadogo et al, 2020(Savadogo et al, , 2021Ouedraogo et al, 2021;Saria et al, 2020;Barandja et al, 2021;Soro et al, 2017).…”

Section: The Continuity Equationmentioning

confidence: 99%

“…Because of light concentration, carrier's distribution within the base is non-uniform. This leads us to take into account the electric field of electrons concentration gradient given by Equation 16 (Pelanchon et al, 1992;Savadogo et al, 2020Savadogo et al, , 2021Soro et al, 2017).…”

Section: The Continuity Equationmentioning

confidence: 99%

“…Gx at the position x is given by (Barandja et al, 2021;Ouedraogo et al, 2021;Pelanchon et al, 1992;Saria et al, 2020;Savadogo et al, 2020Savadogo et al, ,2021Soro et al, 2017):…”

Section: ( )mentioning

confidence: 99%

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Uncooled PV cell under variable light concentration: Determination of profiles of the temperature, the intrinsic properties and the carrier density

Savadogo¹,

Pegdwindé²,

Ouédraogo³

et al. 2022

Int. J. Phys. Sci.

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Studies on concentrated light influence do not take into account the effect of the heating and this proves to be harmful on photovoltaic parameters. The main purpose of this work is to study the effects of light concentration and the heating caused by this concentration on intrinsic properties and carrier density profile. A thermal model of the PV cell is proposed. By applying the power balance at the steady-state, the PV cell thermal equation is determined. The resolution of this equation leads to temperature profile which shows a rapid increase with light concentration. The mobility n  and diffusion n D coefficients of electrons increase to reach their maxima, respectively 2 1 1 max ( ) 1895,31 n cm V s    at C=6,77 Suns where temperature is T=430,92 K and 21 max ( ) 76,55 . n D cm s   at C= 12,59 Suns where temperature is T=508,24; before decreasing. However, for the holes these parameters decrease slowly with concentration increase. Silicon gap energy decreases while electrons intrinsic density increases with increasing concentration. The variations of these parameters are explained on one hand by their dependence on temperature but also by temperature profile with concentration. An electrical model of the PV cell under variable concentration is also proposed and from which the carrier's density is determined. It emerges that the carrier density increases significantly with concentration ratio. This fact is explained by the photo-generation increase with concentration. And also, by thermal generation increase linked to temperature increases with concentration increase. Results also show that carriers density is greater in the rear side compared to the zone near the junction in opposite to authors who did not take into account temperature effect and who showed that carriers density is greater at the illuminated face.

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Section: The Continuity Equationmentioning

confidence: 99%

Section: The Continuity Equationmentioning

confidence: 99%

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Uncooled PV cell under variable light concentration: Determination of profiles of the temperature, the intrinsic properties and the carrier density

Savadogo¹,

Pegdwindé²,

Ouédraogo³

et al. 2022

Int. J. Phys. Sci.

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“…• Light penetration occurs along the axis perpendicular to the junction (OZ) and the generation of excess minority charge carriers [4] [13].…”

Section: Theorical Backgroundmentioning

confidence: 99%

Three-Dimensional Study of the Effect of the Angle of Incidence of a Magnetic Field on the Electrical Power and Conversion Efficiency of a Polycrystalline Silicon Solar Cell under Multispectral Illumination

Sourabié¹,

Barandja²,

Savadogo³

et al. 2022

SGRE

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A three-dimensional approach to the effect of magnetic field incidence angle on electrical power and conversion efficiency is performed on a front-illuminated polycrystalline silicon bifacial solar cell. A solution of the continuity equation allowed us to present the equations of photocurrent density, photovoltage and electric power. The influence of the angle of incidence of the magnetic field on the photocurrent density, the photovoltage and the electric power has been studied. The curves of electrical power versus dynamic junction velocity were used to extract the values of maximum electrical power and dynamic junction velocity and to calculate those of conversion efficiency. From this study, it is found that the conversion efficiency values increase with the angle of incidence of the magnetic field.

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Analysis and Comparison of Doping Level Effects on a Crystalline Silicon PV Cell under Both Moderate Light Concentration and Normal Illumination Modes

Savadogo¹,

Ouédraogo²,

Soro³

et al. 2022

EPE

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The main purpose of this work is to study doping level effects on a silicon PV cell under both moderate light concentration and normal illumination. This study also aims to compare the doping level effects under the both illumination modes. The results show for both illumination modes that diffusion parameters decrease with increasing doping level. These results are in agreement with the studies of the current and the voltage which showed for the two illumination modes that doping level increase leads to a decrease in current density and an increase in voltage. It also emerges for the two illumination modes and for the doping range 10 13 cm −3 -10 16 cm −3 , a decrease of maximum power and conversion efficiency. The results also show that decrease of diffusion parameters is faster under moderate concentration in comparison with normal illumination. These results predict a greater variation rate of the current, the voltage, the maximum power and the conversion efficiency under moderate concentration compared to normal illumination. Contrary to diffusion parameters study, the results show higher variation rates of parameters under normal illumination. This is explained by the fact that under moderate concentration, carriers density is close to doping level: the cell is then in high injection condition. Consequently, under moderate concentration, carriers density is less sensitive to doping level variations. The study confirms that carriers density variation with the doping level is weak under the moderate concentration compared to normal illumination.

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Light concentration solar cell: temperature proper and dynamic effects on electrical parameters determined by using J-V and P-V characteristics

Cited by 3 publications

References 0 publications

Uncooled PV cell under variable light concentration: Determination of profiles of the temperature, the intrinsic properties and the carrier density

Uncooled PV cell under variable light concentration: Determination of profiles of the temperature, the intrinsic properties and the carrier density

Three-Dimensional Study of the Effect of the Angle of Incidence of a Magnetic Field on the Electrical Power and Conversion Efficiency of a Polycrystalline Silicon Solar Cell under Multispectral Illumination

Analysis and Comparison of Doping Level Effects on a Crystalline Silicon PV Cell under Both Moderate Light Concentration and Normal Illumination Modes

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