An overview of the sequence is shown to the right (Figure 1). Trends in solar cell efficiencies This apparatus allows students in introductory physics course to plot I-V characteristics of a solar cell by a simple experiment. Record lab cell efficiency for Perovskite is 21.6%. Compare the results. The large surface area indicated in light blue is exposed to incident light energy. Write whether or not your data supported your hypothesis. Calculating the power of a solar cell. Many different solar cell technologies are being developed, for various applications (rooftops, solar power plants, satellites, backpacks or clothing, etc.). Angle. The power of a solar cell is the product of the voltage across the solar cell times the current through 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. APPRATUS REQUIRED: Solar cell mounted on the front panel in a metal box with connections brought out on terminals. 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. 12) Repeat this experiment two more times. 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). 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 The graph is indicated in the fourth quadrant as solar cell does not draw current but supplies the same to the load; Application. The final graph shows that beyond a ± 45° In our solar cell experiment, we were tasked with experimenting with solar panels and how they function. The graph above is … Test solar cell power output as a function of the angle of the incoming light. Explain patterns in your data. The fabrication portion of the lab 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). Illuminating a cell adds to the normal "dark" currents in the diode so that the diode law becomes: Describe how covering the solar cell affected the spinning of the wheel. The highest lab efficiency in thin film technology is 23.4% for CIGS and 21.0% for CdTe solar cells. Two meters mounted on the front panel to measure the solar cell voltage and current. How does solar cell A compare to the theoretical value? Your email address will not be published. Normally no external bias is applied to the 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. Conclusion: Write down in brief the results of your solar science projects experiment. 8. Calculate the power output of the solar cell (power = current × voltage, or P=IV) under load. Graph and chart your data. changing the distance between the lamp and the solar module (e.g. We will do that by facing the panel to the table. A simple solar cell experiment The following experiment was performed using a Solar cell fill factor (FF) Graph of cell output current (red line) and power (blu e line) as function of voltage. This servers as a back contact, On the top of n Si layer, metallic grid is deposited. Voltage Of Solar Panels vs Distance From Light Experiment. Apparatus for Characteristic Study of Solar Cell (Model No: HO-ED-SC-01) is an effective tool for evaluating the characteristics of solar cell. Click on the graph to see how the curve changes for a cell with low FF. from 2005-2010. According to SEIA, there’s now 70 GW worth of solar module manufacturing capacity, but the current world capacity for solar … 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. Draw graphs plotting P against V and compare them with the diagram at a lamp distance of 30 cm. You’ll then see the results for every calculation. 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 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. 1. solar cells’ output power, compare these way we got series connection is easier way to get the maximum power in a resistance load. Later on we will do 4 more sets of calculations and each will have a different distance. Same as any experiment, we will need to the help of Labview. This structure leads to nearly vertical current ows within the solar cell. In our experiment, the solar cell and motor had V = 1.1 volts and I = 0.11 amps. Plot the graph of the power produced as a function of the angle. ... 2. It is the same meaning on how “shine” the sun is. Also shown are the cell short-circuit current (Isc) and open-circuit voltage (Voc) points, as well as the maximum power point (Vmp, Imp). 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. But the maximum power also ... Data collection from the wavelength experiment gives a graph that shows that different wavelength has different power density. 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. (Discuss if it was better or worse than the theoretical value expected.) 3 4. 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 . In this experiment we are trying to calculate how many voltage the solar panels are producing from the distance of the light. 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. Solar cells have a huge lateral extent compared to their thickness: Typical industrial solar cells have an edge length of 15:6 mm. 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. A solar cell is a semiconductor PN junction diode as shown in figure 1. to 20 cm and 40 cm). Graph of solar panel charging NiMH rechargeable batteries through a Schottky diode. In fact, this graph shows the growth of photovoltaic solar at almost 50% over that five year span; a growth rate that is Plot a graph of Current vs. How does the power output change with temperature? Load + _ Figure 1. formance of the finished solar cell (e.g., spectral response, maximum power out-put). The graph shows the voltage of the battery pack and the solar panel for three nights and two days. In this part, we will just one distance and see what the difference is between different colors. We can change the angle of the cell by simply rotating the clamp in the angle bracket. 1 EXPERIMENT: To plot the V-I Characteristics of the solar cell and hence determine the fill factor. These solar cells are fabricated using a combination of thin film deposition and etching techniques. At a distance of 20 cm the solar module must only be illuminated for the duration of the experiment. 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. Your experiment will measure the effect of changing light intensity on power output from the solar cell. After that, you will open Excel and open the file. 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 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. The first set will be 0cm, then 10cm, 20cm, and the last will be 30 cm away from the panel. Draw a smooth curve through the data points and answer the following questions. 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. 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. In this experiment we are trying to calculate how many voltage the solar panels are producing from the distance of the light. As you see below, the closer the light is from the panel, the more voltage you’ll get. Once you have the power for each resistance setting, you can graph it. In this video we will Study the Characteristics of Solar cell. The effect is quantified by measured values in the following table and graph. In this experiment, I learned that the further away the light is the less voltage it creates. The sequence is a simple set of repeating steps including oxidation, etching, diffusion, cleaning and patterning. 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. 1 EXPERIMENT: To plot the V-I Characteristics of the solar cell and hence determine the fill factor. 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. During the night, the battery voltage drops from a high of 4.05 V to a low of 3.95 V … 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. Draw one more graph between power and voltage to show power variation. 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. 3) From the data in task 3 plot a graph of power output of solar cell A vs. angle. Typical voltage-current characteristics, known as the IV curve, of a diode without Solar cells are usually coated with anti-reflective materials so that they absorb the maximum amount of light energy. 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