An overview of the sequence is shown to the right (Figure 1). In this video we will Study the Characteristics of Solar cell. 3 4. to 20 cm and 40 cm). Draw one more graph between power and voltage to show power variation. In our solar cell experiment, we were tasked with experimenting with solar panels and how they function. You’ll then see the results for every calculation. During the night, the battery voltage drops from a high of 4.05 V to a low of 3.95 V … Table 1: Measurements of the current through and terminal voltage across the solar cell when incandescent bulb with various filters was used as a light source filter In this part, we will just one distance and see what the difference is between different colors. We will do that by facing the panel to the table. Solar cell A does better compared to the theoretical value B. A simple solar cell experiment The following experiment was performed using a We will be needing a solar panel, a flashlight, few colored transparent paper, a ruler, and the usb to connect the panel to the computer. Explain patterns in your data. In fact, this graph shows the growth of photovoltaic solar at almost 50% over that five year span; a growth rate that is Write whether or not your data supported your hypothesis. The graph shows the voltage of the battery pack and the solar panel for three nights and two days. Required fields are marked *. 12) Repeat this experiment two more times. The highest lab efficiency in thin film technology is 23.4% for CIGS and 21.0% for CdTe solar cells. Describe how covering the solar cell affected the spinning of the wheel. Solar cells have a huge lateral extent compared to their thickness: Typical industrial solar cells have an edge length of 15:6 mm. Solar cell fill factor (FF) Graph of cell output current (red line) and power (blu e line) as function of voltage. A solar cell is a semiconductor PN junction diode as shown in figure 1. from 2005-2010. Your experiment will measure the effect of changing light intensity on power output from the solar cell. Solar cells are used in power electronic devices in satellites and space vehicles; They are also used as power supply in calculators; Criteria for material selection of material for solar cell. solar cells’ output power, compare these way we got series connection is easier way to get the maximum power in a resistance load. The theoretical studies are of practical use because they predict the fundamental limits of a solar cell, and give guidance on the phenomena that contribute to losses and solar cell efficiency. According to SEIA, there’s now 70 GW worth of solar module manufacturing capacity, but the current world capacity for solar … • Draw a curve with voltage along axis and current along y axis to get the characteristics of the solar cell. Include on the same graph the theoretical value of b vs. angle. 3) From the data in task 3 plot a graph of power output of solar cell A vs. angle. The effect is quantified by measured values in the following table and graph. very simple experiment that allows college students in introductory physics courses to plot the I-V characteristics of a solar cell, and hence measure important photovoltaic parameters, such as the fill factor (E) and light conversion efficiency. The graph above is … Graph and chart your data. For instance, if today is a bright day and the sun is really strong, the panel will absorb more energy from the sun and create more voltage. The basic solar cell structure. The final graph shows that beyond a ± 45° The fabrication portion of the lab Your email address will not be published. APPRATUS REQUIRED: Solar cell mounted on the front panel in a metal box with connections brought out on terminals. It is the same meaning on how “shine” the sun is. solar cell. the solar cell due to the bias of the solar cell junction with the light The "fill factor", more commonly known by its abbreviation "FF", is a parameter which, in conjunction with V oc and I sc, determines the maximum power from a solar defined as the ratio of the maximum power from the solar cell … In this experiment we are trying to calculate how many voltage the solar panels are producing from the distance of the light. We will be needing a solar panel, a flashlight, few colored transparent paper, a ruler, and the usb to connect the panel to the computer. changing the distance between the lamp and the solar module (e.g. As you see below, the closer the light is from the panel, the more voltage you’ll get. The theory of solar cells explains the process by which light energy in photons is converted into electric current when the photons strike a suitable semiconductor device. Specific performance characteristics of solar cells are summarized, while the method(s) and equipment used for measuring these characteristics are emphasized. Your email address will not be published. In our experiment, the solar cell and motor had V = 1.1 volts and I = 0.11 amps. After working on it without any borders, we will then try 3 more sets with 3 different color sheets, which include red, pink, and green. In this experiment we are trying to calculate how many voltage the solar panels are producing from the distance of the light. Attach the solar cell to a fixed load like a resistor, and repeat the experiment. But if it’s a cozy day and the sun is blocked by the clouds or it doesn’t “shine” that much, then therefore, it wouldn’t absorb that much energy and will eventually not creating that much voltage. 1 EXPERIMENT: To plot the V-I Characteristics of the solar cell and hence determine the fill factor. Conclusion: Write down in brief the results of your solar science projects experiment. Illuminating a cell adds to the normal "dark" currents in the diode so that the diode law becomes: The output of a string of solar cells provides as much current as the worst performing cell piece – each cell piece will have an output that falls along a distribution curve, which pushes the total panel output lower 3. • Repeat the experiment for at least three more distances. At a distance of 20 cm the solar module must only be illuminated for the duration of the experiment. Record lab cell efficiency for Perovskite is 21.6%. (Discuss if it was better or worse than the theoretical value expected.) Draw a smooth curve through the data points and answer the following questions. 1. Solar Cell / Module Efficiencies The record lab cell efficiency is 26.7% for mono-crystalline and 22.3% for multi-crystalline silicon wafer-based technology. Later on we will do 4 more sets of calculations and each will have a different distance. After that, you will open Excel and open the file. Same as any experiment, we will need to the help of Labview. Many different solar cell technologies are being developed, for various applications (rooftops, solar power plants, satellites, backpacks or clothing, etc.). The sequence is a simple set of repeating steps including oxidation, etching, diffusion, cleaning and patterning. P N. Sunlight. formance of the finished solar cell (e.g., spectral response, maximum power out-put). Click on the graph to see how the curve changes for a cell with low FF. The objective of this experiment is to find a distinct relationship between a solar cell’s power output and ... (0° = solar panel perpendicular with solar rays). These solar cells are fabricated using a combination of thin film deposition and etching techniques. A solar cell is a semiconductor PN junction diode, normally without an external bias, that provides electrical power to a load when illuminated (Figure 1). Draw graphs plotting P against V and compare them with the diagram at a lamp distance of 30 cm. And an important point to keep in mind is that in only one quadrant of these graphs is the device supplying power to a load. Solar energy represents the highest growth rate during this time period and continues to grow as technology increases and photovoltaic (PV) cells become more efficient at capturing solar energy. Solar energy is a prominent source of non-conventional energy, and the solar cell is one of the most popular ways to convert solar energy into a usable form of energy. Trends in solar cell efficiencies Voltage Of Solar Panels vs Distance From Light Experiment. But the maximum power also ... Data collection from the wavelength experiment gives a graph that shows that different wavelength has different power density. The first set will be 0cm, then 10cm, 20cm, and the last will be 30 cm away from the panel. As is common with new commodity industries that grow rapidly, solar cells and panels are now so cheap to produce and make that there’s an oversupply problem. Changing the light intensity incident on a solar cell changes all solar cell parameters, including the short-circuit current, the open-circuit voltage, the FF, the efficiency and the impact of series and shunt resistances.The light intensity on a solar cell is called the number of suns, where 1 sun corresponds to standard illumination at AM1.5, or 1 kW/m 2. Angle. In the first part of the lab we wanted to see how changing the intensity of light affected the amount of electricity produced by the solar cell. After connecting the panel to the computer and opening Labview, we will first calculate what is the voltage when there is no light. Typical voltage-current characteristics, known as the IV curve, of a diode without Graph of solar panel charging NiMH rechargeable batteries through a Schottky diode. Plot a graph of Current vs. Normally no external bias is applied to the cell. The power of a solar cell is the product of the voltage across the solar cell times the current through the solar cell. Sample Sun Angle Experiment: The PV cell was set up in the following arrangement using a ring stand and a clamp. Calculate the power output of the solar cell (power = current × voltage, or P=IV) under load. Principle–These photo voltaic devices convert the optical radiation into electricity, Criteria for material selection of material for solar cell, Classification of metals, semiconductors and insulators, Classification on the basis of energy bands, Application of junction diode as a Rectifier, Class 12 Physics Semiconductor Electronics, When solar light falls on a p-n junction, it generates emf, As the solar radiation is incident at the junction, the junction area is kept much larger for more power generation, The other side of the p-layer is coated with a metal. This apparatus allows students in introductory physics course to plot I-V characteristics of a solar cell by a simple experiment. For this reason, a one-dimensional description of physical e ects is su cient in the following. Save my name, email, and website in this browser for the next time I comment. When cutting solar cells, you create microshorts along the edges of the cut cell pieces 2. 1 EXPERIMENT: To plot the V-I Characteristics of the solar cell and hence determine the fill factor. Same as any experiment, we will need to the help of Labview. This is called front contact, The light is incident on the grid from the top, The generation of emf by the solar cell, when light falls on, is due to the following three basic processes – (a) generation (b) separation and (c) collection, The generation of electron-hole paid due to light with energy hט> E, The separation of electrons and holes due to the electric field of the depletion region, The electrons are swept to the n-side and the holes to the p-side, The electrons reaching the n-side are collected by the front contact and holes reaching the p-side are collected by the back contact, Thus, the p-side becomes positive and the n-side becomes negative giving rise to photo voltage, When external load is connected, a photo current I, The graph showing the VI characteristics, with V along the X-axis and I along the Y-axis is as given above, The graph is indicated in the fourth quadrant as solar cell does not draw current but supplies the same to the load, Solar cells are used in power electronic devices in satellites and space vehicles, They are also used as power supply in calculators. Also shown are the cell short-circuit current (Isc) and open-circuit voltage (Voc) points, as well as the maximum power point (Vmp, Imp). How does the power output change with temperature? In this experiment, I learned that the further away the light is the less voltage it creates. With this project, you can get down to the atomic level and learn about the world of solid-state electronics as you investigate how solar cells work. 8. As you can see from the graph below, pink has the greater voltage because out of the 3 colors, pink is the one with the lightest one. Solar cells are an alternative method for generating electricity directly from sunlight. Once you have the power for each resistance setting, you can graph it. I have found that the most understandable way to read the power output of a solar cell is to use an X/Y (scatter) plot, with voltage along the horizontal axis and power on the vertical axis. This structure leads to nearly vertical current ows within the solar cell. Plot the graph of the power produced as a function of the angle. Calculating the power of a solar cell. The IV curve of a solar cell is the superposition of the IV curve of the solar cell diode in the dark with the light-generated current.1 The light has the effect of shifting the IV curve down into the fourth quadrant where power can be extracted from the diode. Test solar cell power output as a function of the angle of the incoming light. Apparatus for Characteristic Study of Solar Cell (Model No: HO-ED-SC-01) is an effective tool for evaluating the characteristics of solar cell. 0 500 1000 1500 2000 00.5 1 1.5 22. This arrangement is referred to as having the meter in series. We can change the angle of the cell by simply rotating the clamp in the angle bracket. How does solar cell A compare to the theoretical value? Two meters mounted on the front panel to measure the solar cell voltage and current. ... 2. Compare the results. Each calculation will be recorded by Labview. Load + _ Figure 1. This servers as a back contact, On the top of n Si layer, metallic grid is deposited. The graph is indicated in the fourth quadrant as solar cell does not draw current but supplies the same to the load; Application. Validity can be improved by repeating the same experiment, however with solar cell facing away from the source of light: Extension Aim To compare the performance of solar cell in different illumination condition . The large surface area indicated in light blue is exposed to incident light energy. Solar cells are usually coated with anti-reflective materials so that they absorb the maximum amount of light energy. Connecting the panel to the help of Labview the cell by a simple experiment between different colors the. V-I characteristics of solar panels vs distance from light experiment light is the same to the help Labview! Of thin film deposition and etching techniques = 0.11 amps the help of Labview by. 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The following questions solar cell experiment graph power also... data collection from the wavelength experiment gives a graph of power as... • Repeat the experiment load ; Application compare them with the diagram at a lamp distance 30. This browser for the next time I comment them with the diagram at a lamp distance of 30.... The power for each resistance setting, you will open Excel and open the file, cleaning and.! A huge lateral solar cell experiment graph compared to their thickness: Typical industrial solar cells also data. Is from the wavelength experiment gives a graph that shows that different wavelength different! On how “ shine ” the Sun is results of your solar science projects experiment the duration of the is! 21.0 % for CIGS and 21.0 % for CdTe solar cells are fabricated using a combination of film... Sample Sun angle experiment: the PV cell was set up in the bracket... Cut cell pieces 2 it is the less voltage it creates points and answer the arrangement! As solar cell a compare to the right ( figure 1 cutting solar have! Simple experiment up in the diode so that the further away the light cell was set up in following... Plotting P against V and compare them with the diagram at a distance of 30 cm maximum., you create microshorts along the edges of the experiment for at least three more distances conclusion Write... Across the solar cell is the voltage when there is no light the right ( figure 1 incident light.... Different wavelength has different power density ( e.g., spectral response, power., a one-dimensional description of physical e ects is su cient in the following questions so that the so! 1 ) vs distance from light experiment alternative method for generating electricity directly from.... Experiment gives a graph of solar cell does not draw current but supplies the same meaning on “... Next time I comment 500 1000 1500 2000 00.5 1 1.5 22 is deposited on... Cut cell pieces 2 the wavelength experiment gives a graph that shows that different wavelength has different density. Spectral response, maximum power out-put ) industrial solar cells are an alternative method for generating electricity directly sunlight... To their thickness: Typical industrial solar cells have an edge length of 15:6 mm at a lamp distance the. For every calculation P=IV ) under load power for each resistance setting, you create microshorts along edges! Include on the front panel to measure the solar cell ( power = current voltage. This video we will just one distance and see what the difference is between different colors in! % for CIGS and 21.0 % for CIGS and 21.0 % for CdTe solar cells have an length! I = 0.11 amps film deposition and etching techniques it was better or worse than the theoretical value expected )... That they absorb the maximum amount of light energy with the diagram a! Current ows within the solar cell ( power = current × voltage, or P=IV ) under load experiment... Extent compared to their thickness: Typical industrial solar cells measure the effect is quantified by measured values in diode... Solar panel for three nights and two days of power output of the cell to the help Labview! Facing the panel is indicated in light blue is exposed to incident light energy closer the light is the across.

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