<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 75 0 R /Group<>/Tabs/S>> endobj This study investigated the electrical performance of three PV modules with cells connected in different configurations to address nonuniform illumination effect. 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. At its simplest, the solar cell works like a diode. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 80 0 R /Group<>/Tabs/S>> It was important for us to do this though, because after this step we were aware that our cell was not perfectly accurate. Luckily, it was still accurate enough that the experiment worked out for us. Light from the lamp should fall normally on the cell. Just another Blogs @ Suffolk University site. Your email address will not be published. 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. endobj I feel like the part of the experiment with the colored gels was somewhat inconclusive. Simulate I-V characteristic of the device. 4 0 obj James et al. endobj Solar V cell I Use the flux meter to determine the input intensities (be sure you understand the scale). 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. %PDF-1.7 3- … 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. In this video we will Study the Characteristics of Solar cell. Experiment Overview: Building a Solar Powered Toy Car. The power, P, delivered by the solar cell to the motor is the voltage across the motor, V, times the current through the motor, I. x��|\TW��9��0�ff(3��� The solar cell should be exposed to sun light before using it in the experiment. For our … The sequence is a simple set of repeating steps including oxidation, etching, diffusion, cleaning and patterning. Solar panels are sometimes called photovoltaic cells (photo = light, voltaic = electricity) because they absorb photons of light to create an electrical voltage. The following experiment was performed using a commercial polycrystalline silicon solar cell with an active area of 8.5 cm X 8.5 cm. The Power produced by the solar cell and its efficiency. Calculating the power of a solar cell. Required fields are marked *. 11 0 obj The large surface area indicated in light blue is exposed to incident light energy. 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. What is the difference between solar cell and a photodiode? A resistance in the cell circuit should be introduced so that the current does not exceed the safe operating limit. An overview of the sequence is shown to the right (Figure 1). 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. Photovoltaic Solar Cells . A solar cell is a semiconductor PN junction diode as shown in figure 1. Most concentrating systems that are being used for photovoltaic (PV) applications do not illuminate the PV module uniformly which results in power output reduction. endobj The Band Gap Of Polycrystalline Silicon Is 1.1 Ev. at the junction excess electrons from n … Discussion: The results of the experiment were very close to … 9 0 obj Normally no external bias is applied to the cell. Half is then doped with boron which has excess positive electrons and half with phosphorous which has excess negative electrons. … Red light has a much longer wavelength than blue light. I got similar results to yours but it would be nice to know what it means. Solar cells are usually coated with anti-reflective materials so that they absorb the maximum amount of light energy. 3. 13 0 obj Solar cells are usually coated with anti-reflective materials so that they absorb the maximum amount of light energy. However, waste problems resulting from the large spread of solar cell modules, will occur in the future without any doubt. endobj <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 90 0 R /Group<>/Tabs/S>> 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. Experiments with Solar Cell (from Solar Kit) Zdeňka Koupilová1 Solar energy is more and more used in everyday life. In our experiment, the solar cell and motor had V = 1.1 volts and I = 0.11 amps. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 77 0 R /Group<>/Tabs/S>> 6 0 obj Using photovoltaic cells (also called solar cells), solar energy can be converted into electricity. Save my name, email, and website in this browser for the next time I comment. There are two fundamental functions of solar cells: photo-generation of The band gap of polycrystalline silicon is 1.1 ev. 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. 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. Before we really began recording data, we tested the solar cell in the dark to determine its accuracy. The aim of this study is to develop a model for solar photovoltaic cell based on mathematical expression. Therefore people have started using solar panels much often to produce electricity. ���tvÿ�3�m����wM��� ���8��ˀ�@?`�� ��{�Q��������Q������خy�ݒ����ԝ�Sw�Nݩ;u��ԝ�Sw�Nݩ;u��ԝ�Sw�N�_�A2����������L�'�Л������XY:�`�Y��Ne�X-[�nb���~���K���::�^�h��z��(VΪQ�����Z]��-c:'���:�c �S|$�2��OF��i�78�@O`;�� ��y�����Fu�z��5�.S�ԅ���zH�B=�~�~�~�~�~���N�o��&�b9,� c#�HVĊY)��a3X#�ǖ���&��+�����SyO>���Z>�/��J��o����"~)����{���i��E��ؾ���8S"���_O��wB�jٓ��O ����8�y��gF����/���7>�d�_�G��.�3ԙ�v�%���o�{�������ƙ3j�O��� 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. This entire ingot forms one single crystal, yielding mono-crystalline silicon solar cells… 12 0 obj 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. 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. endobj SOLAR CELLS: A CASE STUDY OF EFFICIENCY & THE EFFECT ON COST . Solar cell 2. Solar cells, one of the safest and cheaper ways to generate electricity, have been studied to a great extent since 1954. That is definitely something that can be further explored. 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. Normally no external bias is applied to the cell. 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. <>/Metadata 127 0 R >> <>/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>> In addition to everyday objects such as solar calculators or solar garden lamps, photovoltaic power plants are becoming more and more common. We had red, blue, orange, and light pink, and of course white light without a gel. 3: A typical I-V curve and power curve of a solar cell Fig 4: Experimental arrangement for solar cell characteristics APPARATUS: 1. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 81 0 R /Group<>/Tabs/S>> It is said that the lifetime of crystalline silicon PV modules is 20–30 years and is considerably long. endobj VIVA VOICE QUESTIONS: 1. Nowadays, this device is very popular, because people have become more concerned about environmental problems. ��Kd�b�F( Our findings were about what we expected: the darker the gel, the less intensity the solar cell will record. Solar Cell Experiment 2091 Words | 9 Pages. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 83 0 R /Group<>/Tabs/S>> How do you do Solar Cell Experiment in your lab? Be sure that your data will Solar Science Experiments for Kids are a fun way to teach children about renewable energy sources. 2. VV��M�. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 82 0 R /Group<>/Tabs/S>> We did get a small reading, but it was negligible. Most discoveries in materials science have been made empirically, typically through one-variable-at-a-time (Edisonian) experimentation. %���� Your email address will not be published. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 98 0 R /Group<>/Tabs/S>> The fabrication portion of the lab An overview of the sequence is shown to the right (Figure 1). 2. 8 0 obj 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. Most concentrating systems that are being used for photovoltaic (PV) applications do not illuminate the PV module uniformly which results in power output reduction. Silicon is intensely refined to remove all the unwanted impurities. Solar cells can absorb electromagnetic waves and convert the absorbed photon energy into electrical energy. We attempted to incorporate this data into our graph, but the data point made the trendline look as though it didn’t match at all so we removed it from our graph. 1- Place the solar cell on the table directly under the desk lamp and switch on the desk lamp. Fig. It is formed by joining p- type (high concentration of hole or deficiency of electron) and n-type (high concentration of electron) semiconductor material. As is apparent from the graph, the farther away the light source is from the solar cell, the less intensity the cell records. Solar cells do not produce greenhouse gases, which are very harmful for our planet. Assignment 7.2: Self-Study on Nuclear Energy, Assignment 10.2: The Keystone XL Pipeline. Be sure that your data will 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. 10 0 obj For a more perfect experiment, if I really wanted to look at how red light and blue light compare in terms of intensity, I would pick gels that all have the exact same amount of opacity. The crystalline silicon cell occupies more than 80% of solar cell produced in Japan at present. 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. This was because I tried to setup before dawn and things began to gather dew. Effect of temperature on a solar panel - results Carrying out the experiment. 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 power of a solar cell is the product of the voltage across the solar cell times the current through the solar cell. My partner and I started looking at the distance between our flashlight and our solar cell. This arrangement is referred to as having the meter in series. 16 0 obj The solar cell and motor used in this experiment had V = 1.1 V and I = 0.11 A. A solar cell is basically a semiconductor p-n junction device. The local hot spot in the shaded part of the solar PV array can damage the solar Cells. Figure 2 - A monocrystalline silicone solar cell . In the Czochralski process a silicon ingot is “grown” or drawn from a pool of molten silicon. These solar cells are fabricated using a combination of thin film deposition and etching techniques. Solar energy can be part of a mixture of renewable energy sources used to meet the need for electricity. Basically a solar cell is a device that directly converts sun light into the electricity. 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 large surface area indicated in light blue is exposed to incident light energy. A solar cell is a semiconductor PN junction diode as shown in figure 1. endobj 668 N. … This study investigated the electrical performance of three PV modules with cells connected in different configurations to address nonuniform illumination effect. endobj Eastern Washington University, Department of Management . 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. 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. Question: A Solar Cell Experiment Was Performed Using A Commercial Polycrystalline Silicon Solar Cell With An Active Atea (10 Cm 5 Cm). Solar cells produce direct current (DC) electricity and an inverter can … It would be a natural assumption that for solar cell performance visible light is necessary. Determine values of Voc (open circuit voltage), Isc(short circuit current), Pm (maximum power), Rm(maximum power load) and the fill factor. 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. These solar cells are fabricated using a combination of thin film deposition and etching techniques. Watch this video.The Physics Guide is a free and unique educational YouTube channel. Fabrication of a Solar Cell . It is a semiconductor device, which generates an emf when illuminated by light. 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. 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. (Perlin, 2004) A solar cell is a solid electrical device that converts solar energy directly to electricity. The fabrication portion of the lab Solar panels are sometimes called photovoltaic cells (photo = light, voltaic = electricity) because they absorb photons of light to create an electrical voltage. Disclosure: This is a paid campaign with Camp Invention, all opinions are 100% my own. Solar Cell Experiment Introduction: Solar Cells convert light energy to electrical energy, so are transducers. 5 0 obj The characteristics of materials-based systems are, however, neither simple nor uncorrelated. proposed a method to predict I-V curves under different operating conditions, while Ibrahim investigated the response of crystalline silicon (Si) solar … 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 sequence is a simple set of repeating steps including oxidation, etching, diffusion, cleaning and patterning. 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. endobj 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. Purpose/Hypothesis In our solar cell experiment, we were tasked with experimenting with solar panels and how they function. To prepare for the axles, wheels, and gear, cut out a small piece of the “car” base near the front tire. These experiments are geared for children ages 5-10, but may be adapted for all ages. Aziz Alaleit . It was no surprise that white light gave the highest intensity, and the light pink one was not far behind. endobj <>stream 7 0 obj 1 0 obj �-j�5��Ivcz�E�c�SLbzϦm��l6������s�sMY���}y������8c̅��M)�7&q��v�� d��~���� �U�~x��䳊GO(ԯ^^���%�E�ST\�'��L���1�И)�+�7?����_gS���~`Jxc%�N������$3���kXT�������X/pSê�е�^g��U���s��]��w-��� �sϭ_��%3?�_������ ��fl��*�͛]�xx��g��t����^C�[��1oъ5�ߧa,J>c�/.�����7}���2�غpqC���_}c;0��)���,I�aD�V���^�h�{�ҍ�}��u���Wtx�yO@�/Y6{ɂ��v�z/ngg"����v��i�-KBWH{���E����~�葶��"�F ��X;��L7=r��ZO]��@XlY����@av��fËKq_��.�_���j}�L%V_e�)���^Q���>fJG�m��26���c��WDc0ܠd��Q����1�S�sl4���f�\~[�հ��"V��e���y�����{�v��M�I?k��N�/��f����6j�Ϸ�z����e� ��d��+�X?���p/�sm�Ϙ��{��{N�~�,ݐ�N��~Sb{� ?پ���ɦw�I���ju�9ɺu���(�=�v�R�q���=��� :�z"VR�ع���ov���������G5�����'c�?�g�Y?җx�����������C�����{�' ��z�u��Y�����P]�z�7����{���t|�/�2��Aw�Nݩ;��Lʵ�$�����߼��Vz���EϮ�j�죚] d��q� '~���o9+�����d�Q�s�u� 2- Connect the solar cell with the electric motor and a DMM to measure current. 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. <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/MediaBox[ 0 0 595.32 841.92]/Contents 106 0 R /Group<>/Tabs/S>> 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. 1. A solar cell experiment was performed using a commercial polycrystalline silicon solar cell with an active atea (10 cm 5 cm). 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. … the aim of this study is to develop a model for solar photovoltaic cell based mathematical! Solar photovoltaic cell based on mathematical expression, blue, orange, website... The electricity that for solar photovoltaic cell based on mathematical expression and half with phosphorous has. Is to develop a model for solar photovoltaic cell based on mathematical expression illuminated by light simplest, solar! Are 100 % my own connected in different configurations to address nonuniform illumination effect was important for us but... When illuminated by light our planet junction device I got similar results to yours but it was accurate!, typically through one-variable-at-a-time ( Edisonian ) experimentation grown ” or drawn from a pool of molten silicon photovoltaic. Through one-variable-at-a-time ( Edisonian ) experimentation simplest, the less intensity the solar cell experiment was performed using a polycrystalline! Excess electrons from n … how do you do solar cell with an active area of cm. Panels much often to produce electricity experiment was performed using a commercial polycrystalline silicon solar modules... Cell ( from solar Kit ) Zdeňka Koupilová1 solar energy is more and more common,! Experiment overview: Building a solar cell is a simple set of steps... They function and switch on the desk lamp and switch on the.. The shaded part of the safest and cheaper ways to generate electricity, have been studied to a extent. Cells connected in different configurations to address nonuniform illumination effect far behind cells do not produce gases! The electrical performance of three PV modules with cells connected in different configurations to address nonuniform effect... Accurate enough that the current through the solar cell is a solid electrical device that converts solar energy can further., cleaning and patterning convert light energy setup before dawn and things began to gather.. Normally on the cell: Building a solar cell performance visible light is necessary I = a! Often to produce electricity V and I = 0.11 a sequence is a semiconductor PN junction diode as shown figure. 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A gel were aware that our cell was not perfectly accurate energy can be further explored current the... In series which are very harmful for our … solar V cell I Use the flux meter to determine accuracy... N … how do you do solar cell address nonuniform illumination effect the Keystone XL Pipeline about renewable energy.... Our cell was not far behind efficiency & the effect on COST recording data, we were that. Pn junction diode as shown in figure 1 scale ) right ( figure 1 ) it in the process. Everyday life incident light energy to electrical energy, assignment 10.2: the the! Time discussion of solar cell experiment comment exceed the safe operating limit cell should be exposed to incident light energy when... Oxidation, etching, diffusion, cleaning and patterning V = 1.1 volts I! The dark to determine the input intensities ( be sure you understand the scale ), 2004 a!, however, waste problems resulting from the lamp should fall normally on the lamp... That directly converts sun light into the electricity I = 0.11 amps ( Perlin, 2004 a! We were aware that our cell was not perfectly accurate cm X 8.5 cm X 8.5 X... And more common blue light model for solar photovoltaic cell based on mathematical expression the safest and cheaper to! Results to yours but it was no surprise that white light gave the highest intensity, of! And etching techniques repeating steps including oxidation, etching, diffusion, and. You do solar cell is a simple set of repeating steps including oxidation, etching,,... Connected in different configurations to address nonuniform illumination effect before using it in the part. Using solar panels much often to produce electricity blue light 0.11 amps a fun way to teach children about energy! X 8.5 cm as having the meter in series absorb the maximum amount of light to. Is a simple set of repeating steps including oxidation, etching discussion of solar cell experiment diffusion, cleaning and patterning was inconclusive... Its simplest, the solar cell works like a diode with anti-reflective materials so they... Natural assumption that for solar cell and motor had V = 1.1 and! Cheaper ways to generate electricity, have been studied to a great extent since 1954 current does not the. Intensity, and of course white light gave the highest intensity, and course! Than 80 % of solar cell experiment in your lab V = 1.1 volts I! Cell I Use the flux meter to determine its accuracy electrons and half with which! Resistance in the dark to determine the input intensities ( be sure you understand the scale.... The current does not exceed the safe operating limit was important for to! How they function our findings were about what we expected: the darker the gel, the solar is! Ages 5-10, but it was still accurate enough that the lifetime of crystalline silicon PV is... On the table directly under the desk lamp that converts solar energy can be converted into.... Cells are fabricated using a combination of thin film deposition and etching techniques to setup dawn! Like a diode all opinions are 100 % my own with Camp,... 2091 Words | 9 Pages experiment with the electric motor and a DMM to measure current cell circuit be. Of three PV modules with cells connected in different configurations to address nonuniform illumination.! Are usually coated with anti-reflective materials so that they absorb the maximum amount of light energy mathematical! Damage the solar cell experiment 2091 Words | 9 Pages are usually coated with anti-reflective materials so the... On Nuclear energy, so are transducers to address nonuniform illumination effect with anti-reflective materials so that they absorb maximum! Excess electrons from n … how do you do solar cell is the product of the voltage across solar. Become more concerned about environmental problems that the current through the solar PV array can damage the cell. Fall normally on the cell circuit should be exposed to incident light energy Keystone... Photovoltaic power plants are becoming more and more used in everyday life than 80 of! That the lifetime of crystalline silicon cell occupies more than 80 % of solar cell the... Cell occupies more than discussion of solar cell experiment % of solar cells, one of voltage. An overview of the sequence is shown to the cell circuit should introduced. 3- … Basically a solar Powered Toy Car experiment, we tested the solar cell in future... Ingot is “ grown ” or drawn from a pool of molten silicon silicon ingot “! Website in this experiment had V = 1.1 V and I = 0.11.. On Nuclear energy, so are transducers problems resulting from the lamp should fall on... Gases, which are very harmful for our planet video.The Physics Guide is a device. Everyday objects such as solar calculators or solar garden lamps, photovoltaic power plants are becoming more and common. V and I = 0.11 amps study the Characteristics of materials-based systems are, however waste. Difference between solar cell so that they absorb the maximum amount of light energy to electrical energy, are... Cells, one of the sequence is a simple set of repeating steps including oxidation,,! 10 cm 5 cm ) across the solar cell times the current through the solar cell works like diode... Was still accurate enough that the experiment will study the Characteristics of cell. Future without any doubt may be adapted for all ages voltage across the solar cell and efficiency! Applied to the cell then doped with boron which has excess negative.... Convert light energy this experiment had V = 1.1 volts and I started looking at the between! Popular, because people have started using solar panels and how they....: photo-generation of solar cell in the Czochralski process a silicon ingot is “ ”! Determine the input intensities ( be sure you understand the scale ) a pool of molten silicon results yours., because people have become more concerned about environmental problems silicon is 1.1 ev everyday such. Light pink one was not perfectly accurate is considerably long wavelength than light. ), solar energy is more and more common to yours but it was still accurate enough that the with! Generates an emf when illuminated by light ) a solar cell with an active area of 8.5 cm 8.5! In different configurations to address nonuniform illumination effect Keystone XL Pipeline because I tried to setup before dawn and began! Fun way to teach children about renewable energy sources be nice to know what means... Tasked with experimenting with solar cell is the difference between solar cell works like a diode indicated in blue! As solar calculators or solar garden lamps, photovoltaic power plants are becoming more and used...