Two-Dimensional Finite Element Method Analysis Effect of the Recombination Velocity at the Grain Boundaries on the Characteristics of a Polycrystalline Silicon Solar Cell

Nzonzolo,; Mabika, Camille Nziengui; Sissoko, G.

doi:10.4236/cs.2016.713344

Cited by 2 publications

(4 citation statements)

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“…There, increasing the grain size leads to minimize the minority carrier's recombination centers at the grain boundaries. We note that the mean lifetime of the photogenerated carriers depends on the grain size [13][14]. This predicts the expansion of the space load area when the grain size increases.…”

Section: Density Of the Minority Carriers In The Basementioning

confidence: 99%

3-D Modeling of a Polycrystalline Silicon Solar Cell Under Polychromatic Illumination: Effects of the Grain Size and the Recombination Velocity at the Boundaries

Sene¹,

Diao²,

Faye³

et al. 2021

AJMP

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In this paper, a three-dimensional study on a polycrystalline silicon solar cell under polychromatic illumination in an instational regime. The influence of grain size, recombination velocity at the grain boundaries on the density of the minority carriers of a silicon solar cell, is presented. Based on the continuity equation of the minority carriers in the solar cell base, the expressions of the photocurrent density and the photovoltage in function of the grain size, the recombination velocity, are deduced. The continuity equation of the carriers has been solved by a numerical method with boundary conditions and physical constants fixed in relation to our reference model. The influence of time t on the density of the carriers and on the electric power was presented in this work also. The electrical voltage and current were studied according to the recombination velocity. The conversion efficiency according to the grain size and also presented an assessment of the performance of our model of study. The expressions of the output power and the energy conversion of the solar cell, are determined in order to optimize its functional state. We recall that, the objective is to make a numerical resolution, making fewer simplifying hypotheses so that the study is closer to reality compared to other methods of resolution.

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Section: Density Of the Minority Carriers In The Basementioning

confidence: 99%

3-D Modeling of a Polycrystalline Silicon Solar Cell Under Polychromatic Illumination: Effects of the Grain Size and the Recombination Velocity at the Boundaries

Sene¹,

Diao²,

Faye³

et al. 2021

AJMP

View full text Add to dashboard Cite

show abstract

“…These techniques based on analytical methods, present some limits in solving some equations. Nowadays one uses more and more numerical methods such as the finite element method, characterized by its robustness and flexibility in its implementation [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…n represents the illumination level. The parameters and # are the constants deduced from the modeling of the generation rate considered for the overall solar radiation spectrum [1,2,3,10]. x indicates the depth in the base such as x=0 at the junction and x=H at the back face.…”

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confidence: 99%

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Determination of the Solar Cell Optimal Junction Recombination Velocity Using Hybrid Method

Nzonzolo¹,

Nionsi²,

Ebale³

2019

SJEE

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In this paper we present a technique for determining the optimum junction recombination velocity of a solar cell, using a combination of the electrical equivalent model, and the finite element method. Starting from the continuity equation that describes the solar cell operation solved in one dimension by the finite element method, the excess minority carrier's density is determined. From this density, the photocurrent, the photovoltage and the power produced by the solar cell are determined. The photocurrent and the photovoltage are represented according to the junction recombination velocity, as well as the solar cell power versus the photovoltage, for various values of the series resistance. In considering its equivalent electrical model, the solar cell is modeled and simulated with Matlab/Simulink. In this simulation model, the capacitor initially discharged, charges under the effect of the solar cell. Its impedance varying according to time, represents the load resistance which corresponds to an operating point of the solar cell. During the capacitor charge process for various values of the series resistance, we obtain the current-voltage characteristic of the solar cell in order to highlight the series resistance effects on the solar cell power. From the optimal value of the power, and that of solar cell photovoltage obtained by simulating the solar cell using Matlab/Simulink, the value of the junction recombination velocity corresponding to the maximum value of the solar cell power is determined numerically, for various values of the series resistance.

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Two-Dimensional Finite Element Method Analysis Effect of the Recombination Velocity at the Grain Boundaries on the Characteristics of a Polycrystalline Silicon Solar Cell

Cited by 2 publications

References 1 publication

3-D Modeling of a Polycrystalline Silicon Solar Cell Under Polychromatic Illumination: Effects of the Grain Size and the Recombination Velocity at the Boundaries

3-D Modeling of a Polycrystalline Silicon Solar Cell Under Polychromatic Illumination: Effects of the Grain Size and the Recombination Velocity at the Boundaries

Determination of the Solar Cell Optimal Junction Recombination Velocity Using Hybrid Method

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