scholarly journals Shockley’s Equation Fit Analyses for Solar Cell Parameters from I-V Curves

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Markus Diantoro ◽  
Thathit Suprayogi ◽  
Arif Hidayat ◽  
Ahmad Taufiq ◽  
Abdulloh Fuad ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Nonlinear Equation ◽  
Measurement Data ◽  
Simple Method ◽  
Technical Problems ◽  
Cell Parameters ◽  
Intrinsic Parameters ◽  
Zero Current ◽  
Linear Fit

Some of the technical problems that appear are obtaining solar cell parameters from I-V curve measurement data. One simple method is using linear graphical fit at zero current or voltage conditions. Although the accuracy of the obtained values is acceptable, other problems may arise regarding the number of parameters which could be obtained. We report a comparison between manual or graphical fit and fit using Shockley’s equation. The single I-V curve under the lighting was inferred to obtain the intrinsic parameters of the solar cells’ performance. The fittings were performed using the nonlinear equation of Shockley by determining some initial values of fittings such as Rs, Rsh, n, I0, Iph, and T. In the case of the Shockley equation fit, the iteration was performed several times to obtain the least possible inferred parameters. We have successfully obtained a better result of nonlinear Shockley fitting compared to the manual linear fit.

scholarly journals Research of the Energy Losses of Photovoltaic (PV) Modules after Hail Simulation Using a Newly-Created Testbed

Energies ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 4537
Author(s):  
Kilikevičienė ◽  
Matijošius ◽  
Kilikevičius ◽  
Jurevičius ◽  
Makarskas ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Composite Structures ◽  
Estimation Method ◽  
Digital Analysis ◽  
Simple Method ◽  
Cell Parameters ◽  
Pv Modules ◽  
Irreversible Effect ◽  
The Impact

The impact of hail ice cubes on composite structures (such as solar cells) causes actual defects. This article presents a series of tests, in which solar cell modules were exposed to hail simulation testbed balls, allowing to assess the following: the impact energy, which causes the major defects in solar cells; the formed micro-cracks in the structure of solar cells, resulting in the loss of power generated by a solar cell; and the solar cell parameters necessary for modelling. In addition, this article presents a digital analysis of hail simulation. Information received from the digital analysis was used to optimize the structure of solar cells in order to improve its resistance properties. The aim of this study was to present a simple method for experimental hail simulation. The proposed hail impact estimation method can be successfully applied to study the influence of the mechanical–dynamic impact of photovoltaic (PV) modules of different structures on the technical characteristics of these modules (structural stability, power generation, etc.). The study showed that PV modules are subjected to an irreversible effect of the excitation force (i.e., micro-cracking) and it can reduce the generated power by 2.33% to 4.83%.

Study of Photoelectrochemical Solar Cell Using WSe2 Crystal

2013 ◽  
Vol 665 ◽  
pp. 330-335 ◽  
Author(s):  
Ripal Parmar ◽  
Dipak Sahay ◽  
R.J. Pathak ◽  
R.K. Shah
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Fill Factor ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Electrical Energy ◽  
Open Circuit ◽  
Cell Parameters ◽  
Photoelectrochemical Solar Cell ◽  
Photoelectrochemical Solar Cells

The solar cells have been used as most promising device to convert light energy into electrical energy. In this paper authors have attempted to fabricate Photoelectrochemical solar cell with semiconductor electrode using TMDCs. The Photoelectrochemical solar cells are the solar cells which convert the solar energy into electrical energy. The photoelectrochemical cells are clean and inexhaustible sources of energy. The photoelectrochemical solar cells are fabricated using WSe2crystal and electrolyte solution of 0.025M I2, 0.5M NaI, 0.5M Na2SO4. Here the WSe2crystals were grown by direct vapour transport technique. In our investigations the solar cell parameters like short circuit current (Isc) and Open circuit voltage (Voc) were measured and from that Fill factor (F.F.) and photoconversion efficiency (η) are investigated. The results obtained shows that the value of efficiency and fill factor of solar cell varies with the illumination intensities.

scholarly journals An Analysis of Fill Factor Loss Depending on the Temperature for the Industrial Silicon Solar Cells

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2931
Author(s):  
Kwan Hong Min ◽  
Taejun Kim ◽  
Min Gu Kang ◽  
Hee-eun Song ◽  
Yoonmook Kang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Temperature Dependence ◽  
Fill Factor ◽  
Crystalline Silicon ◽  
Crystalline Silicon Solar Cell ◽  
Initial State ◽  
Cell Parameters ◽  
Loss Analysis ◽  
Pv Module

Since the temperature of a photovoltaic (PV) module is not consistent as it was estimated at a standard test condition, the thermal stability of the solar cell parameters determines the temperature dependence of the PV module. Fill factor loss analysis of crystalline silicon solar cell is one of the most efficient methods to diagnose the dominant problem, accurately. In this study, the fill factor analysis method and the double-diode model of a solar cell was applied to analyze the effect of J01, J02, Rs, and Rsh on the fill factor in details. The temperature dependence of the parameters was compared through the passivated emitter rear cell (PERC) of the industrial scale solar cells. As a result of analysis, PERC cells showed different temperature dependence for the fill factor loss of the J01 and J02 as temperatures rose. In addition, we confirmed that fill factor loss from the J01 and J02 at elevated temperature depends on the initial state of the solar cells. The verification of the fill factor loss analysis was conducted by comparing to the fitting results of the injection dependent-carrier lifetime.

scholarly journals ANNEALING OF POLYCRYSTALLINE THIN FILM SILICON SOLAR CELLS IN WATER VAPOUR AT SUB-ATMOSPHERIC PRESSURES

2014 ◽  
Vol 54 (5) ◽  
pp. 341-347
Author(s):  
Peter Pikna ◽  
Vlastimil Píč ◽  
Vítězslav Benda ◽  
Antonín Fejfar
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Water Vapour ◽  
Elevated Temperatures ◽  
Voltage Response ◽  
In Situ Observation ◽  
Polycrystalline Thin Film ◽  
Cell Parameters

Thin film polycrystalline silicon (poly-Si) solar cells were annealed in water vapour at pressures below atmospheric pressure. PN junction of the sample was contacted by measuring probes directly in the pressure chamber filled with steam during passivation. Suns-VOC method and a Lock-in detector were used to monitor an effect of water vapour to VOC of the solar cell during whole passivation process (in-situ). Tested temperature of the sample (55°C – 110°C) was constant during the procedure. Open-circuit voltage of a solar cell at these temperatures is lower than at room temperature. Nevertheless, voltage response of the solar cell to the light flash used during Suns-VOC measurements was good observable. Temperature dependences for multicrystalline wafer-based and polycrystalline thin film solar cells were measured and compared. While no significant improvement of thin film poly-Si solar cell parameters by annealing in water vapour at under-atmospheric pressures was observed up to now, in-situ observation proved required sensitivity to changing VOC at elevated temperatures during the process.

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.

scholarly journals Influence of Base Resistivity on Solar Cell Parameters of Double-Side Contacted Rear Junction Solar Cells

2012 ◽  
Vol 27 ◽  
pp. 53-58 ◽  
Author(s):  
V. Mertens ◽  
T. Ballmann ◽  
J.Y. Lee ◽  
M. Junghänel ◽  
F. Stenzel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Cell Parameters

scholarly journals Measuring the Solar Cell Parameters Using Fuzzy Set Technique

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Mohammed S. Rasheed ◽  
Mohammed Abdelhadi Sarhan
Keyword(s):  
Solar Cell ◽  
Fuzzy Set ◽  
Silicon Solar Cell ◽  
Simulation Method ◽  
Photovoltaic Cell ◽  
Comparison Method ◽  
Physical Parameters ◽  
Simple Method ◽  
Cell Parameters ◽  
Method Show

<p>This work studies the application of fuzzy set (FS) and fuzzy logic (FC) methods to determine the optimal operating point of solar cell. The physical parameters of the solar cell have been measured practically using silicon solar cell. The important parameters of the silicon cell are compared with each other using fuzzy set comparison method (FSCM) based on (I-V) characteristic curves of the voltage of photovoltaic cell and the maximum power resulting from the cell; which is a simple method for the measurement. The results of the simulation method show that, the fuzzy set comparison method (FSCM) is better measuring these parameters.</p>

scholarly journals Numerical Modeling of High Conversion Efficiency Mo/CZTS/CdS/ZnO/ FTO Thin Film – Based Solar Cells

2021 ◽  
Author(s):  
Samer H. Zyoud ◽  
Ahed H. Zyoud ◽  
Naser M. Ahmed ◽  
Anupama R. Prasad ◽  
Sohaib Naseem Khan ◽  
...  
Keyword(s):  
Thin Film ◽  
Numerical Modeling ◽  
Solar Cells ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Short Circuit ◽  
Photovoltaic Cells ◽  
Effect Of Temperature ◽  
Cell Parameters

This article describes in detail the numerical modeling of a CZTS (copper zinc tin sulfide) based kesterite solar cell. The Solar Cell Capacitance Simulator -one-dimension (SCAPS-1D) software was used to simulate MO/CZTS/CdS/ZnO/FTO structured solar cells. The parameters of different photovoltaic thin-film solar cells are estimated and analyzed using numerical modeling. The effects of various parameters on the performance of the photovoltaic cell and the conversion efficiency are discussed. Since the response of the solar cell is also contingent on its internal physical mechanism, J-V characteristic measures are insufficient to characterize the behavior of a device. Different features, as well as different potential conditions, must be considered for simulation, disregarding the belief in the modeling of a solar cell. With a conversion efficiency of 25.72%, a fill factor of 83.75%, a short-circuit current of 32.96436 mA/cm2 and an open-circuit voltage of 0.64V, promising optimized results have been achieved. The findings will be useful in determining the feasibility of fabricating high-efficiency CZTS-based photovoltaic cells. The efficiency of a CZTS-based experimental solar cell is also discussed. First, the effects of experimentally developed CZTS solar cells are simulated in the SCAPS-1D environment. The experimental results are then compared to the SCAPS-1D simulated results. The conversion efficiency of an optimized system increases after cell parameters are optimized. Using one-dimensional SCAPS-1D software, the effect of system parameters such as the thickness, acceptor and donor carrier concentration densities of absorber and electron transport layers, and the effect of temperature on the efficiency of CZTS-based photovoltaic cells is investigated. The proposed results will greatly assist engineers and researchers in determining the best method for optimizing solar cell efficiency, as well as in the development of efficient CZTS-based solar cells.

scholarly journals Comparison of the Values of Solar Cell Contact Resistivity Measured with the Transmission Line Method (TLM) and the Potential Difference (PD)

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5590
Author(s):  
Małgorzata Musztyfaga-Staszuk
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Electrical Properties ◽  
Transmission Line ◽  
Contact Resistivity ◽  
Potential Difference ◽  
Firing Process ◽  
Measuring Instruments ◽  
Cell Contact ◽  
Cell Parameters

This work presents a comparison of values of the contact resistivity of silicon solar cells obtained using the following methods: the transmission line model method (TLM) and the potential difference method (PD). Investigations were performed with two independent scientific units. The samples were manufactured with silver front electrodes. The co-firing process was performed in an infrared belt furnace in a temperature range of 840 to 960 °C. The electrical properties of a batch of solar cells fabricated in two cycles were investigated. This work focuses on the different metallisation temperatures of co-firing solar cells and measurements were carried out using the methods mentioned. In the TLM and PD methods, the same calculation formulae were used. Moreover, solar cell parameters measured with these methods had the same, similar, or sometimes different but strongly correlated values. Based on an analysis of the selected databases, this article diagnoses the recent and current state of knowledge regarding the employment of the TLM and PD methods and the available hardware base. These methods are of interest to various research centres, groups of specialists dealing with the optimisation of the electrical properties of silicon photovoltaic cells, and designers of measuring instruments.

scholarly journals Modeling and Simulation of Lead-Free Perovskite Solar Cell Using SCAPS-1D

2021 ◽  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Electron Transport ◽  
Doping Concentration ◽  
Defect Density ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Lead Free ◽  
Cell Parameters ◽  
Transport Medium

In this work, the effect of some parameters on tin-based perovskite (CH3NH3SnI3) solar cell were studied through device simulation with respect to adjusting the doping concentration of the perovskite absorption layer, its thickness and the electron affinities of the electron transport medium and hole transport medium, as well as the defect density of the perovskite absorption layer and hole mobility of hole transport material (HTM). A device simulator; the one-dimensional Solar Cells Capacitance Simulator (SCAPS‑1D) program was used for simulating the tin-based perovskite solar cells. The current-voltage (J-V) characteristic curve obtained by simulating the device without optimization shows output cell parameters which include; open circuit voltage (Voc) = 0.64V, short circuit current density (Isc) = 28.50mA/, fill factor (FF) = 61.10%, and power conversion efficiency (PCE) = 11.30% under AM1.5 simulated sunlight of 100mW/cm2 at 300K. After optimization, values of the doping concentration, defect density, electron affinity of electron transport material and hole transport material were determined to be: 1.0x1016cm-3, 1.0x1015cm-3, 3.7 eV and 2.3 eV respectively. Appreciable values of solar cell parameters were obtained with Jsc of 31.38 mA/cm2, Voc of 0.84 V, FF of 76.94% and PCE of 20.35%. when compared with the initial device without optimization, it shows improvement of ~1.10 times in Jsc, ~1.80 times in PCE, ~1.31 times in Voc and ~1.26 time in FF. The results show that the lead-free CH3NH3SnI3 perovskite solar cell which is environmentally friendly is a potential solar cell with high theoretical efficiency of 20.35%.

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