Study of C–V characteristics in thin n+-p-p+ silicon solar cells and induced junction n-p-p+ cell structures

Kumar, Sonu; Sareen, Vikash; Batra, Neha

doi:10.1016/j.solmat.2010.03.019

Cited by 14 publications

(17 citation statements)

References 6 publications

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“…The value is found as 7.79 × 10 16 cm −3 , and the value of bi − 2 / is equal to 0.56 eV, which corresponds to bi = 0.61 eV. The calculated values are in good agreement with the reported values for commercially available silicon solar cells [36,37].…”

Section: Theory Validation and Characterization Of Lcpv Modulesupporting

confidence: 84%

Exergy, Energy, and Dynamic Parameter Analysis of Indigenously Developed Low-Concentration Photovoltaic System

Yadav

Tripathi

Kumar

2013

International Journal of Photoenergy

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Piecewise linear parabolic trough collector (PLPTC) is designed and developed to concentrate solar radiation on monocrystalline silicon based photovoltaic module. A theoretical model is used to perform electrical energy and exergy analysis of low-concentration photovoltaic (LCPV) system working under actual test conditions (ATC). The exergy efficiency of LCPV system is in the range from 5.1% to 4.82% with increasing rate of input exergy rate from 30.81 W to 96.12 W, when concentration ratio changes from 1.85 to 5.17 Sun. Short-circuit current shows increasing trend with increasing input exergy rate of≈0.011 A/W. Power conversion efficiency decreases from 7.07 to 5.66%, and open-circuit voltage decreases from 9.86 to 8.24 V with temperature coefficient of voltage≈-0.021 V/K under ATC. The results confirm that the commercially available silicon solar PV module performs satisfactorily under low concentration.

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Section: Theory Validation and Characterization Of Lcpv Modulesupporting

confidence: 84%

Exergy, Energy, and Dynamic Parameter Analysis of Indigenously Developed Low-Concentration Photovoltaic System

Yadav

Tripathi

Kumar

2013

International Journal of Photoenergy

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Section: Proposed Methods For Determining the Solar Cell Capacitancementioning

confidence: 99%

“…Consequently, the results of simulation could be compared to the experimental measurements. Additionally, in this stage the IS method [17,18,26] was used to The SC1 equivalent electrical circuit used is shown in Figure 1, where the D 1 diode is used in order to observe the dynamic behavior of the solar cell.…”

Section: Simulation and Experimental Setupmentioning

confidence: 99%

“…The CT capacitance describes the separation of charges in the depletion region and the CD capacitance describes the gradient in the charge density inside the solar cell [18,26]. The equivalent electrical circuit of the solar cell can be simplified like in Figure 2; the dashed line part, Cp = CD||CT, is the equivalent parallel capacitance, and Rp = Rsh||Rd is the equivalent parallel resistance.…”

Section: Introductionmentioning

confidence: 99%

“…Increasing the number of the interconnected ribbon disconnections increases the series resistance, slightly decreases the parallel resistance, and does not affect the capacitance of the PV modules.The solar cell capacitance is a combination of two capacitances: transition capacitance (also known as junction capacitance) and diffusion capacitance connected in parallel. The solar cell capacitance varies function of the cell voltage, level of irradiance, frequency, and temperature [26][27][28][29][30][31][32][33]. The capacitance variation of the silicon solar cell function of the bias voltage presents two regions: in the first region, stretching from reverse to forward bias until the knee voltage, the capacitance presents a small increasing slope (region associated with the transition capacitance), while in the second region, beginning above the knee voltage, the capacitance presents an exponential increase (in the region associated with the diffusion capacitance).…”

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Solar Cell Capacitance Determination Based on an RLC Resonant Circuit

Cotfas

Borza

et al. 2018

Energies

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The capacitance is one of the key dynamic parameters of solar cells, which can provide essential information regarding the quality and health state of the cell. However, the measurement of this parameter is not a trivial task, as it typically requires high accuracy instruments using, e.g., electrical impedance spectroscopy (IS). This paper introduces a simple and effective method to determine the electric capacitance of the solar cells. An RLC (Resistor Inductance Capacitor) circuit is formed by using an inductor as a load for the solar cell. The capacitance of the solar cell is found by measuring the frequency of the damped oscillation that occurs at the moment of connecting the inductor to the solar cell. The study is performed through simulation based on National Instruments (NI) Multisim application as SPICE simulation software and through experimental capacitance measurements of a monocrystalline silicon commercial solar cell and a photovoltaic panel using the proposed method. The results were validated using impedance spectroscopy. The differences between the capacitance values obtained by the two methods are of 1% for the solar cells and of 9.6% for the PV panel. The irradiance level effect upon the solar cell capacitance was studied obtaining an increase in the capacitance in function of the irradiance. By connecting different inductors to the solar cell, the frequency effect upon the solar cell capacitance was studied noticing a very small decrease in the capacitance with the frequency. Additionally, the temperature effect over the solar cell capacitance was studied achieving an increase in capacitance with temperature.Energies 2018, 11, 672 2 of 13 be determined by using the fitting method (like the series and parallel resistance and the capacitance in the case of solar cells). The IS method has the advantage of offering the information about three important dynamic parameters and can be implemented with dedicated instruments or LCR meters. The disadvantage of this method is the need for an external signal injection into the DUT which can increase the price of the used instruments, especially if the tests are conducted under light conditions. These conditions involve DC power electronics in the instruments in order to bias the PV.Other methods are based on the time response of the PV modules. These methods are based on the transient effect of the Resistor Capacitor (RC) circuit (discharging effect of the PV capacitance [19,20] or time constant of the PV circuit [21]). The reported time response-based methods require external signal injection into the DUT and are used only in dark conditions.The dynamic parameters can be used as tools to characterize and diagnose the quality and the degradation status of the PV modules. One of the key dynamic parameters is the electrical capacitance of the PV modules. Oprea et al. [22] found that the PV panel capacitance and parallel resistance are affected by the PV panel degradation state when the potential-induced degradation was studied. Bhat et al. [23] found that t...

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Modeling and Analysis of the Effect of Current-Voltage in the Solar Cell Dynamic Parameters

Louzazni

Belmahdi

Madhiarasan

2022

The 16th International Conference Interdisciplinarity in Engineering

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Study of C–V characteristics in thin n+-p-p+ silicon solar cells and induced junction n-p-p+ cell structures

Cited by 14 publications

References 6 publications

Exergy, Energy, and Dynamic Parameter Analysis of Indigenously Developed Low-Concentration Photovoltaic System

Exergy, Energy, and Dynamic Parameter Analysis of Indigenously Developed Low-Concentration Photovoltaic System

Solar Cell Capacitance Determination Based on an RLC Resonant Circuit

Modeling and Analysis of the Effect of Current-Voltage in the Solar Cell Dynamic Parameters

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