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A Review Paper Ondevelopment in Material Used in Solar Pannel As SSRG International Journal of Mechanical Engineering Volume 6 Issue 6, 35-41, June 2019 ISSN: 2348–8360 /doi: 10.14445/23488360/IJME-V6I6P107 © 2019 Seventh Sense Research Group® A Review Paper on Development in Material Used in Solar Pannel as Solar Cell Material Ankur Kumar Bansal, Dinesh Kumar, Dr. Mukesh Kumar M.tech Mechanical, AKTU Lucknow, India Abstract electron flow when photons from sunlight absorbed In the present era, While seeing the increasing and ejected electrons, leaving a hole that is further demand for energy and depletion of resources from filled by the surrounding electrons. This phenomenon which we obtained energy, solar energy suggest as is called the photovoltaic effect. The PV cell directs the best alternative energy resource. The light from the electrons in one direction, which gives rise to the the sun is not only a non-vanishing resource of flow of current. The amount of current is directly energy but also it is an Eco- Friendly resource of proportional to the humble of absorbed photons. So it energy(free from the environment pollution and can be easily said that PV cells are a variable current noise). It can easily compensate for the energy source. The first solar cell was built by Charles Fritts requirements fulfilled by the other resources, which in 1883 by the use of a thin layer of gold, and a are depleting and environment challenges, such as coating of selenium formed a junction. In the starting Fossil Fuel and petroleum deposits. era, the PCE was very low, about 1% only, but Basically, we receive solar energy from the further improvements make it increase. After 1950, sun in the form of sunlight. This sunlight is converted the US gives a landmark in the resource of the solar into electric energy by the use of a solar cell, which cell. In the conference of 1973, they found solar uses the principle of Photovoltaic effect. The main power corporations and give emphasis on developing two challenges in front of the development and solar energy at a reasonable cost; the vanguard implementation of solar cells are cost and efficiency. satellite employed the first photovoltaic solar panel in Discontinuous supply is also a problem while using space in addition to increasing the mission time. The solar energy. There are so many researches are space companies need a very high quality of solar going on continuous improvement of the functioning cell provides high PCE due to which in starting price of a solar cell. Solar Cell efficiency, which was below of solar cell were quite a height. But further 10% at the development of thin-film solar cells in the improvement and its use in household applications 1970s, now the most recent developments in new make its price full. photovoltaic materials achieving greater than 24% Ize 10 & Normal)This document is a template. An efficiency (PCE). Unfortunately, the cost of electronic copy can be downloaded from the electricity from current solar cells is about one order conference website. For questions on paper of magnitude higher than commercial prices. guidelines, please contact the conference publications However, several of the recent developments hold a committee, as indicated on the conference website. promising future for the field. We begin by looking at Information about final paper submission is available the development of solar cells in general and the new from the conference website. technologies available. HISTORY Keywords — Solar Pannel. Solar Cell Material Solar cells were first used in space applications in the vanguard satellite in 1958. These are used as an INTRODUCTION alternative power source in place of battery by using The everyday sun sends out a huge amount of energy the solar cell's mission time could be extended. In in the form of heat & radiation called solar energy. 1959 United States used a wing-shaped solar array in Solar energy is an unlimited resource of energy at its satellite named Explorer 6, which become a free Cost [1]. The main benefit of solar energy over common feature. Further, these arrays consisted of another conventional energy resource that solar 9600 Hoffman solar cells. This time the price of solar energy can easily be converted into electric energy cell were quite high because here in space with the help of photovoltaic solar cells in an Eco- applications only quality matters. The price of solar friendly manner[2] [3]. panels fell when the semiconductor industry moves to A solar cell is a device that Integrated circuits in 19605 led to the availability of converts the solar energy or light (when falls on it) layer crystals (boules). So the cost of solar cells falls into electrical energy with the principle of up to 100$per watt in 1971. In 1969, the US started a photovoltaic effect (discovered by Alexandre- research program into the solar panel for terrestrial Edmond Becquerel in 1839, A French Scientist)[4]. applications named "Research Applied to Nation A photovoltaic cell is a device that converts sunlight Needs" governed by National Science Foundations into electricity using semiconductor materials enable Advanced Solar Energy Research and Development This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Ankur Kumar Bansal et al. / IJME, 6(6), 35-41, 2019 Division. This program still continued till 1977 and manufactured from a single crystal of silicon. These funded research on developing solar power for silicon crystals are cut from the big sized cylindrical ground Electrical Power Systems. ingots. The method used for manufacturing these In the 1973 oil crisis, oil companies cells is called the Czochralski process [5] [7]. The gave emphasis to start a solar firm and were, for corner of the cells looks clipped like an octagon. decades, the largest producers. Exxon, ARCO Shell, These solar panels display a distinctive pattern of Amoco, and Mobil all had established their major small white diamonds. The efficiency of these cells divisions during the 1970s & 1980s. This all gives an lies between 17%-18% [8]. increase in the use of solar energy, decreases in production cost, and an increase in solar cell B. Poly-Crystalline Silicon Solar Cell efficiency. Poly-Crystalline PV modules are The cost of solar cells was sufficiently decreased generally composed of a number of different crystals, due to process improvements and large production coupled to one another in a single cell. The cells are from 96$ per watt in mid -1970s to 68$ per watt in made from cast sugar ingots by cooling and 2016, according to data from Bloomberg New solidification method. This manufacturing is Energy Finance [21] as the semiconductors industry economical. These cells are currently the most moves to larger crystals order equipment become popular solar cells that occupy almost 48% of solar inexpensive. cell production worldwide in 2008, yet this efficiency is about 12%-14% [9][10]. Ribbon Silicon DEVELOPMENT OF MATERIAL USED IN is an example of a Polycrystalline silicon solar cell, SOLAR CELL which is formed by drawing flat thin films from The first material used for a solar cell is basically molten silicon. Silicon waste is reduced in this type silicon solar cells are named on the basis of of cell to a great extent, but these are less efficient. semiconducting material used. These materials should have the property absorbing sunlight. Solar C. Thin Film Solar Cell – Second Generation Solar cells are basically grouped into first, second, and Cell third-generation cells. The first generation cells are Thin-film solar cells are called a second- produced by silicon wafers. Second generation cells generation solar cell and are more economical as are thin films solar cells (Amorphous Silicon, compared to the first-generation solar cell. These Cadmium Telluride, and CIGS cells) and used in solar cells have a very thin light-absorbing layer photovoltaic power stations, building integrated generally of the order of 1micro meter thickness, photovoltaic or in the small stand-alone power while first-generation silicon wafer cells have a system. The third generation of the solar cell includes 250micro meter thick light-absorbing layer [11]. emerging photovoltaic (a number of thin-film These technologies reduce the amount of active technologies). Third-generation cells, most of them material in a cell. This active material acts as a are under research and not commercially used. In sandwich between two panes of glass. Examples of spite of solar cell technology very costly and less this film technology Amorphous Silicon, Cadmium efficient, there is so many researches are going on in Telluride (CdTe), copper indium gallium Di Selenide the development of solar cell technology due to its (CIGS), etc. increasing demand and promising nature of unlimited supply. Amorphous Silicon Thin Film Solar Cell Amorphous Silicon solar cell is an example of the most well-developed technology in a thin-film solar cell. These solar cells are first, which is manufactured industrially. These cells can be manufactured at very low processing temperatures, so various polymer and other flexible substrates can be used, which are cheap as compared to other materials [12]. So these solar cells are comparatively cheaper and widely used. These cells are made of non- crystalline or microcrystalline silicon. Amorphous Silicon has a higher bandgap (1.7ev) than crystalline silicon. Here Amorphous meaning that the Fig: Classification of solar cells on the basis of comprising silicon material of the cell lacks a definite generation [54,55]. arrangement of atoms in the lattice, no-crystalline structure, or not highly structured. These are A. Mono-Crystalline Silicon Solar Cell fabricating by waiting for the doped silicon material These solar cells are first-generation to the backside of the glass plate by the Plasma solar cells called a conventional or traditional solar Enhanced Chemical Vapour Deposition method cell.
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