Solceller brf

[Jane Maria]

There are numerous different technologies that may be used to produce devices which convert light into electricity, and we are likely to explore these in turn. There's always a balance to be struck between how well something works, and just how much it costs to produce, and the exact same could be said for solar energy Solceller brf.

We take solar cells, and we combine them into larger units referred to as "modules," these modules," these modules can again get in touch together to form arrays. Thus we are able to see that there's a hierarchy, where in actuality the solar panel is the tiniest part.

Let us look into the structure and properties of solar "cells," but remember, when combined into modules and arrays, the solar "cells" here are mechanically supported by other materials-aluminum, glass, and plastic.

Among the materials that solar cells could be made from is silicon-this may be the material that you discover inside integrated circuits and transistors. There are good reasons for using silicon; it is another most abundant element on the planet after oxygen. If you think about that sand is silicon dioxide (SiO2), you realize that there will be a lot of it out there!

Silicon may be used in several different ways to produce photovoltaic cells. The absolute most efficient solar technology is that of "monocrystalline solar cells," they are slices of silicon taken from just one, large silicon crystal. Since it is really a single crystal it includes a very regular structure and no boundaries between crystal grains and so that it performs very well. You are able to generally identity a monocrystalline solar panel, as it seems to be round or even a square with rounded corners.

Among the caveats with this kind of method, as you might find later, is that after a plastic crystal is "grown," it produces a circular cross-section solar panel, which does unfit well with making solar panels, as round cells are difficult to prepare efficiently. The next form of solar panel i will be considering also made from silicon, is slightly different, it is really a "polycrystalline" solar cell. Polycrystalline cells remain made from solid silicon; however, the method used to produce the silicon from which the cells are cut is slightly different. This results in "square" solar cells. However, there are many "crystals" in a polycrystalline cell, so that they perform slightly less efficiently, although they are cheaper to produce with less wastage.

Now, the problem with silicon solar cells, as we will see next experiment, is that they're all effectively "batch produced" meaning they are manufactured in small quantities, and are fairly expensive to manufacture. Also, as many of these cells are formed from "slices" of silicon, they use quite a lot of material, meaning they are quite expensive.

Now, there is another type of solar cells, so-called "thin-film" solar cells. The difference between these and crystalline cells is that as opposed to using crystalline silicon, these use chemical compounds to semiconduct. The chemical compounds are deposited together with a "substrate," that's to say a platform for the solar cell. There are a few formulations that do not require silicon at all, such as for example Copper indium diselenide (CIS) and cadmium telluride. However, there is also a procedure called "amorphous silicon," where silicon is deposited on a substrate, but not in a uniform crystal structure, but as a slim film. In addition, as opposed to being slow to produce, thin-film solar cells could be produced utilizing a continuous process, helping to make them much cheaper.

However, the disadvantage is that while they are cheaper, thin-film solar cells are less efficient than their crystalline counterparts.

When considering the merits of crystalline cells and thin-film cells, we are able to observe that crystalline cells produce the absolute most power for confirmed area. However, the problem using them is that they're expensive to produce and quite inflexible (as you are limited by constructing panels from standard cell sizes and cannot change or vary their shape).

Efficiency of different cell types:

Cell material EfficiencyArea required to generate 1 KW peak power
Monocrystalline silicon 15-18% 7-9 m2
polycrystalline silicon 13-16% 8-11 m2
Thin-film copper indium diselenide (CIS) 7.5-9.5% 11-13 m2
Cadmium telluride 6-9% 14-18 m2
Amorphous silicon 5-8% 16-20 m2

By comparison, thin-film cells are cheap to produce, and the only real factor limiting their shape may be the substrate they are mounted on.This means that you could create large cells, and cells of different shapes and sizes, most of which may be useful in certain applications.

We're now likely to take a detailed look at making two various kinds of solar panel, one is a crystalline solar panel, and one other a thin-film solar cell. Both of the experiments are designed to be "illustrative," as opposed to to actually make shape may be the substrate they are mounted on. The technology required to produce silicon solar cells is out from the reach of the house experimenter, so we are likely to "illustrate" the method of what sort of solar panel is made, using things you will find in your kitchen. For thin-film solar cells, we are likely to make a real solar panel, which responds to light with changing electrical properties; however, the efficiency of our cell will be very poor, and it won't have the ability to generate a helpful level of electricity.

Explore more about Home Solar Power Systems and understand the uses and benefits of solar photovoltaic, solar panels, and many other informative tips about using alternative energy. Visit Earth For Energy today; master the true knowledge of using energy Solceller brf.