Red light has a much longer wavelength than blue light. As is apparent from the graph, the farther away the light source is from the solar cell, the less intensity the cell records. What is the difference between solar cell and a photodiode? Lab 8: Solar Cell Experiment In this experiment, we were asked to use a solar cell, a light, a ruler, and some colored gels to determine different aspects of light intensity. 13 0 obj Solar panels are sometimes called photovoltaic cells (photo = light, voltaic = electricity) because they absorb photons of light to create an electrical voltage. In addition to everyday objects such as solar calculators or solar garden lamps, photovoltaic power plants are becoming more and more common. endobj 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. 3- … An overview of the sequence is shown to the right (Figure 1). We took our measurements by holding the light source directly next to the solar cell with the gel in between, so distance would not be a factor in this experiment. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 82 0 R /Group<>/Tabs/S>> Discussion: The results of the experiment were very close to … Your email address will not be published. It would be a natural assumption that for solar cell performance visible light is necessary. It is formed by joining p- type (high concentration of hole or deficiency of electron) and n-type (high concentration of electron) semiconductor material. An overview of the sequence is shown to the right (Figure 1). Normally no external bias is applied to the cell. Experiment Overview: Building a Solar Powered Toy Car. In addition to reflecting the performance of the solar cell itself, the efficiency depends on the spectrum and intensity of the incident sunlight and the temperature of the solar cell. He found, when experimenting with an electrolytic cell made up of two metal electrodes, that some materials would produce small amounts of current when exposed to light. A solar cell is a semiconductor PN junction diode as shown in figure 1. 16 0 obj <>stream 11 0 obj In this video we will Study the Characteristics of Solar cell. Indirectly, the sun’s heat drives the wind which can power a wind turbine.Or, the sun’s light helps plants to grow, which can then be used as organic matter for Biogas. 2. It is said that the lifetime of crystalline silicon PV modules is 20–30 years and is considerably long. To explore the relationship between distance between the cell and a light source and intensity, we took light intensity measurements at five different distances: 0cm, 3cm, 5cm, 7cm, and 9cm. … Required fields are marked *. endobj Your email address will not be published. Aziz Alaleit . Be sure that your data will Aim 1: To investigate any relationship present between the distance between a solar cell and a lamp, and the current output of the solar cell, at a fixed voltage. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 75 0 R /Group<>/Tabs/S>> Calculating the power of a solar cell. Solar Science Experiments for Kids are a fun way to teach children about renewable energy sources. Solar V cell I Use the flux meter to determine the input intensities (be sure you understand the scale). 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. Solar energy, created by the sun, is an important source of renewable energy.In fact, most renewable energy comes from the sun either directly or indirectly. Solar cells are usually coated with anti-reflective materials so that they absorb the maximum amount of light energy. Just another Blogs @ Suffolk University site. Normally no external bias is applied to the cell. Solar Cell Experiment Introduction: Solar Cells convert light energy to electrical energy, so are transducers. 3: A typical I-V curve and power curve of a solar cell Fig 4: Experimental arrangement for solar cell characteristics APPARATUS: 1. <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 106 0 R /Group<>/Tabs/S>> The crystalline silicon cell occupies more than 80% of solar cell produced in Japan at present. 12 0 obj It was important for us to do this though, because after this step we were aware that our cell was not perfectly accurate. %���� The sequence is a simple set of repeating steps including oxidation, etching, diffusion, cleaning and patterning. Under illumi- nation from an artificial light source with an intensity of 8.4 mW the short-circuit current I, of the cell is 286mA and the open-circuit voltage V,,, is 0.466V. endobj The solar cell and motor used in this experiment had V = 1.1 V and I = 0.11 A. At its simplest, the solar cell works like a diode. endobj Be sure that your data will There are two fundamental functions of solar cells: photo-generation of For the second half of the experiment, we used four different colored gels to look at how color has an impact on light intensity. The large surface area indicated in light blue is exposed to incident light energy. Solar V cell I Use the flux meter to determine the input intensities (be sure you understand the scale). 668 N. … Solar Cell Experiment 2091 Words | 9 Pages. <>/Metadata 127 0 R >> My partner and I started looking at the distance between our flashlight and our solar cell. x��|\TW��9��0�ff(3��� VV��M�. Question: A Solar Cell Experiment Was Performed Using A Commercial Polycrystalline Silicon Solar Cell With An Active Atea (10 Cm 5 Cm). Specifically, we were asked to discover the relationship between the distance between the cell and a light source and light intensity, and also the color of light and how that effects intensity. <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 90 0 R /Group<>/Tabs/S>> Half is then doped with boron which has excess positive electrons and half with phosphorous which has excess negative electrons. <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Annots[ 57 0 R ]/MediaBox[ 0 0 595.32 841.92]/Contents 58 0 R /Group<>/Tabs/S>> The solar cell should be exposed to sun light before using it in the experiment. Most concentrating systems that are being used for photovoltaic (PV) applications do not illuminate the PV module uniformly which results in power output reduction. This study investigated the electrical performance of three PV modules with cells connected in different configurations to address nonuniform illumination effect. ��Kd�b�F( Our findings were about what we expected: the darker the gel, the less intensity the solar cell will record. It was no surprise that white light gave the highest intensity, and the light pink one was not far behind. Photovoltaic Solar Cells . 6 0 obj Most concentrating systems that are being used for photovoltaic (PV) applications do not illuminate the PV module uniformly which results in power output reduction. %PDF-1.7 9 0 obj Watch this video.The Physics Guide is a free and unique educational YouTube channel. Solar cells, one of the safest and cheaper ways to generate electricity, have been studied to a great extent since 1954. Silicon is intensely refined to remove all the unwanted impurities. SOLAR CELLS: A CASE STUDY OF EFFICIENCY & THE EFFECT ON COST . Before we really began recording data, we tested the solar cell in the dark to determine its accuracy. Fig. Solar cells are usually coated with anti-reflective materials so that they absorb the maximum amount of light energy. 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. The following experiment was performed using a commercial polycrystalline silicon solar cell with an active area of 8.5 cm X 8.5 cm. During the Solar Cell Energy lab three flexible solar cells were combined in series and exposed to solar radiation at different angles in one axis of rotation. The original study demonstrated the production of two electrons from one photon, but it did so in an organic photovoltaic cell, which is less efficient than a silicon solar cell. Most discoveries in materials science have been made empirically, typically through one-variable-at-a-time (Edisonian) experimentation. 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. Save my name, email, and website in this browser for the next time I comment. at the junction excess electrons from n … 1 0 obj 7 0 obj Determine values of Voc (open circuit voltage), Isc(short circuit current), Pm (maximum power), Rm(maximum power load) and the fill factor. The characteristics of materials-based systems are, however, neither simple nor uncorrelated. The band gap of polycrystalline silicon is 1.1 ev. It also makes sense that orange and red came next, both because the orange was less opaque than the red and the blue, but because of the wavelengths of the colors. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 80 0 R /Group<>/Tabs/S>> A resistance in the cell circuit should be introduced so that the current does not exceed the safe operating limit. (Perlin, 2004) A solar cell is a solid electrical device that converts solar energy directly to electricity. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 77 0 R /Group<>/Tabs/S>> A solar cell is a semiconductor PN junction diode as shown in figure 1. To prepare for the axles, wheels, and gear, cut out a small piece of the “car” base near the front tire. For our … endobj I feel like the part of the experiment with the colored gels was somewhat inconclusive. 5 0 obj That is definitely something that can be further explored. I tested all the tracking and data logging software routines before running the experiment outside with the real tracker hardware.I setup the equipment outside once the day began to warm. 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. These solar cells are fabricated using a combination of thin film deposition and etching techniques. I got similar results to yours but it would be nice to know what it means. A solar cell is basically a semiconductor p-n junction device. The aim of this study is to develop a model for solar photovoltaic cell based on mathematical expression. endobj <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 83 0 R /Group<>/Tabs/S>> Solar panels are sometimes called photovoltaic cells (photo = light, voltaic = electricity) because they absorb photons of light to create an electrical voltage. 4 0 obj Nowadays, this device is very popular, because people have become more concerned about environmental problems. Solar energy can be part of a mixture of renewable energy sources used to meet the need for electricity. Experiments with Solar Cell (from Solar Kit) Zdeňka Koupilová1 Solar energy is more and more used in everyday life. proposed a method to predict I-V curves under different operating conditions, while Ibrahim investigated the response of crystalline silicon (Si) solar … A simple solar cell experiment The following experiment was performed using a commercial polycrystalline silicon solar cell with an active area of 8.5 cm X 8.5 cm. Solar cells produce direct current (DC) electricity and an inverter can … 1. The Power produced by the solar cell and its efficiency. Assignment 7.2: Self-Study on Nuclear Energy, Assignment 10.2: The Keystone XL Pipeline. We did get a small reading, but it was negligible. In our experiment, the solar cell and motor had V = 1.1 volts and I = 0.11 amps. Since the efficiency of a diode is dependent on its temperature, you will want to be careful that the photocell temperature is kept constant throughout the experiment. Simulate I-V characteristic of the device. Fifty years later a scientist named Charles Fritts created the first real solar cell using junctions by coating the semiconductor with a nearly transparent layer of gold. The only thing that really surprised me about this experiment was that there wasn’t a more dramatic difference between the intensities of red and blue light, but I suppose that has something to do with the opacity of the gels. The large surface area indicated in light blue is exposed to incident light energy. A solar cell experiment was performed using a commercial polycrystalline silicon solar cell with an active atea (10 cm 5 cm). 2- Connect the solar cell with the electric motor and a DMM to measure current. Therefore people have started using solar panels much often to produce electricity. The fabrication portion of the lab When the energy of the incident photon is larger than the band gap, the photon can be absorbed by the semiconductor to create an electron-hole pair. This entire ingot forms one single crystal, yielding mono-crystalline silicon solar cells… This arrangement is referred to as having the meter in series. The local hot spot in the shaded part of the solar PV array can damage the solar Cells. It is a semiconductor device, which generates an emf when illuminated by light. 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