For the second half of the experiment, we used four different colored gels to look at how color has an impact on light intensity. Most concentrating systems that are being used for photovoltaic (PV) applications do not illuminate the PV module uniformly which results in power output reduction. The band gap of polycrystalline silicon is 1.1 ev. Be sure that your data will 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. 2. 13 0 obj Disclosure: This is a paid campaign with Camp Invention, all opinions are 100% my own. The sequence is a simple set of repeating steps including oxidation, etching, diffusion, cleaning and patterning. Solar cell 2. Experiment Overview: Building a Solar Powered Toy Car. 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. endobj A solar cell is basically a semiconductor p-n junction device. 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 cells, one of the safest and cheaper ways to generate electricity, have been studied to a great extent since 1954. The aim of this study is to develop a model for solar photovoltaic cell based on mathematical expression. James et al. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 82 0 R /Group<>/Tabs/S>> 12 0 obj The fabrication portion of the lab 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 panels are sometimes called photovoltaic cells (photo = light, voltaic = electricity) because they absorb photons of light to create an electrical voltage. The large surface area indicated in light blue is exposed to incident light energy. 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. Figure 2 - A monocrystalline silicone solar cell . 16 0 obj <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 75 0 R /Group<>/Tabs/S>> Most concentrating systems that are being used for photovoltaic (PV) applications do not illuminate the PV module uniformly which results in power output reduction. What is the difference between solar cell and a photodiode? 9 0 obj VIVA VOICE QUESTIONS: 1. 2- Connect the solar cell with the electric motor and a DMM to measure current. The crystalline silicon cell occupies more than 80% of solar cell produced in Japan at present. 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. In our experiment, the solar cell and motor had V = 1.1 volts and I = 0.11 amps. … Discussion: The results of the experiment were very close to … Our measurements were recorded by the computer in intervals of ten seconds, and so we took the average of those recordings to get out data points. A solar cell is a semiconductor PN junction diode as shown in figure 1. 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. Solar cells can absorb electromagnetic waves and convert the absorbed photon energy into electrical energy. 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. 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. Required fields are marked *. %PDF-1.7 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. 7 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. %���� Purpose/Hypothesis In our solar cell experiment, we were tasked with experimenting with solar panels and how they function. 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. For our … Question: A Solar Cell Experiment Was Performed Using A Commercial Polycrystalline Silicon Solar Cell With An Active Atea (10 Cm 5 Cm). Solar cells are usually coated with anti-reflective materials so that they absorb the maximum amount of light energy. There are several approaches that have been proposed to reduce the effect of shadows on a solar PV array output power: Bypass diodes are connected across shadowed cells to pass the full amount of current while preventing damage to the solar cell. These experiments are geared for children ages 5-10, but may be adapted for all ages. The power of a solar cell is the product of the voltage across the solar cell times the current through the solar cell. Your email address will not be published. This study investigated the electrical performance of three PV modules with cells connected in different configurations to address nonuniform illumination effect. Basically a solar cell is a device that directly converts sun light into the electricity. Just another Blogs @ Suffolk University site. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 77 0 R /Group<>/Tabs/S>> <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 83 0 R /Group<>/Tabs/S>> An overview of the sequence is shown to the right (Figure 1). Solar Science Experiments for Kids are a fun way to teach children about renewable energy sources. The solar cell and motor used in this experiment had V = 1.1 V and I = 0.11 A. 668 N. … endobj endobj 5 0 obj <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 90 0 R /Group<>/Tabs/S>> Nowadays, this device is very popular, because people have become more concerned about environmental problems. Using photovoltaic cells (also called solar cells), solar energy can be converted into electricity. Assignment 7.2: Self-Study on Nuclear Energy, Assignment 10.2: The Keystone XL Pipeline. The Power produced by the solar cell and its efficiency. The solar cell should be exposed to sun light before using it in the experiment. We had red, blue, orange, and light pink, and of course white light without a gel. 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. The fabrication portion of the lab 2. Silicon is intensely refined to remove all the unwanted impurities. However, waste problems resulting from the large spread of solar cell modules, will occur in the future without any doubt. <>/Metadata 127 0 R >> 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. showed I-V characteristics with reverse bias slopes to be due to wavelengths of light below semiconductor band gap, while Schottky I-V characteristics were due to wavelengths of light above the semiconductor band gap; Zhang et al. <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 106 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. Fig. Save my name, email, and website in this browser for the next time I comment. These solar cells are fabricated using a combination of thin film deposition and etching techniques. Eastern Washington University, Department of Management . I feel like the part of the experiment with the colored gels was somewhat inconclusive. Effect of temperature on a solar panel - results Carrying out the experiment. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 81 0 R /Group<>/Tabs/S>> 4 0 obj A resistance in the cell circuit should be introduced so that the current does not exceed the safe operating limit. Normally no external bias is applied to the cell. <>stream 6 0 obj In this video we will Study the Characteristics of Solar cell. A solar cell is a semiconductor PN junction diode as shown in figure 1. SOLAR CELLS: A CASE STUDY OF EFFICIENCY & THE EFFECT ON COST . Watch this video.The Physics Guide is a free and unique educational YouTube channel. VV��M�. at the junction excess electrons from n … 8 0 obj Simulate I-V characteristic of the device. The large surface area indicated in light blue is exposed to incident light energy. In addition to everyday objects such as solar calculators or solar garden lamps, photovoltaic power plants are becoming more and more common. The local hot spot in the shaded part of the solar PV array can damage the solar Cells. 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. A solar cell experiment was performed using a commercial polycrystalline silicon solar cell with an active atea (10 cm 5 cm). The sequence is a simple set of repeating steps including oxidation, etching, diffusion, cleaning and patterning. endobj Experiments with Solar Cell (from Solar Kit) Zdeňka Koupilová1 Solar energy is more and more used in everyday life. Aziz Alaleit . 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. This study investigated the electrical performance of three PV modules with cells connected in different configurations to address nonuniform illumination effect. Photovoltaic Solar Cells . My partner and I started looking at the distance between our flashlight and our solar cell. Solar panels are sometimes called photovoltaic cells (photo = light, voltaic = electricity) because they absorb photons of light to create an electrical voltage. To prepare for the axles, wheels, and gear, cut out a small piece of the “car” base near the front tire. 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. 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