Has produced the first solar cell in 1986 and was its efficiency 1% they turned only 1% of the light energy falling upon to electrical energy and after the scientists used organic compounds new in the nineties of the last century increased efficiency to about 5%, and scientists hope to raise the efficiency to 10 % in a few years and makes those modern technology attractive for business investment. 

While dependent conventional solar cells on inorganic, such as alloy copper or gallium "metal with a white slash blue" and silicon which materials may not be always available either organic solar cells, they consist mainly of carbon molecules, hydrogen and oxygen are available in nature.

The researchers suggest that organic solar cells can be operated toys or screens small flexible can a matter in or you recharge your batteries portable devices such as telephone, etc. Without a doubt, convert the sun's energy into electricity by materials do not cause any pollution to the environment is great and the researchers hope that solar energy become soon a major source of energy to replace fossil fuel "oil and natural gas" as well as once installed solar cells, the user will get the power after it has always been free.

And increase electronics enhanced complexity of silicon cells used in buildings and various devices as an additional component you specific tasks but what would happen if the solar cells made ​​of material other than silicon?Ask me He was told that the new solar cell reached by the scientists made ​​from organic materials and the advantage of being flexible, lightweight and much cheaper than conventional solar cells is "organic" because it consists mainly of carbon, however, the main obstacle to organic solar cells to their efficiency in converting light into electricity very much lower compared to silicon cells.

 
Electronic traps .. And other obstacles
Consisting solar cell conventional thin layer semiconductor"crystalline solid resistance medium between conductors metallic and insulating materials" squeezed between two electricians and when it falls light on the semiconductor raised electrons near enough to "take off" the same restrictions installed by leaving behind holes and works an electric field is equipped with bipolar Ali urged electrons which carry a negative charge and the gaps" that carry a positive charge "to move the parties interviewers from the solar cell and the process is relatively easy in the semiconductor inorganic, such as silicon, but in the case of organic materials, we find that the force electron linking the largest gap by about a hundred times. Furthermore, the organic material is often a "trap" such as highway barricades impede the movement of electrons.
In spite of the modest efficiency of organic solar cells but other characteristics such as flexibility, light weight, durability and low cost make it attractive to a large extent this in addition to the possibility of integration in other materials due to the flexible nature .. Starting from fabrics to plastics "plastics" to the materials used in building roofs.

Nearing solar energy to become a reliable source of energy engineers devised electricians U.S. method for the manufacture of solar cells if placed side by side with other modern devices. To become a very economical source of energy for the future.

And push scientists to manufacture a new type of solar cells that are not in the same efficient traditional sources, but the cheaper ones and much more useful and widely used and known that solar cells or photo-voltaic cells turning light into electricity and can run a lot of devices from computers "computers" to satellites and solar cell "photo-voltaic" is an electronic cell generated electric driving force their exposure to optical radiation.

Every minute launches sun on the planet a tremendous amount of energy, enough to consume all the inhabitants of the land in an entire year! Unfortunately, the conversion of all those solar horrific to electricity is very expensive and most solar cells are made of silicon silicon element metal and found in abundance in the earth's crust on the body dioxide silicon sand and this needs like microchips to manufacturing processes difficult include the use of room clean and booths circle of air and as a result, the cost of generating electricity from solar energy is about four times as much as the cost generated by conventional means and the good news here is that developments are taking place at a time afoot in the field of plastics plastics and nanotechnology nanotechnology for making cells cheap and flexible can "sprinkled "on the walls or even printed on paper or fabrics!
One of the flaws in the solar cells, "photo-voltaic" traditional silicon-based is that it is solid.

How do solar panels work ? 

 To answer this question all you have to do is watch this video.....

Enjoy watching ....

Some problems with the use of solar energy:

• The most important problem facing researchers in the fields of solar energy utilization is the presence of dust and try to clean solar devices it has demonstrated ongoing research on this topic that more than 50% of the effectiveness of solar energy lost in the case of non-cleaning device future to the sun for a month.

The best way to get rid of the dust is the use of continuous cleaning methods at intervals not exceeding three days for each period and these methods vary from country to country based on the nature of the dust and the nature of the weather in that country.

• The second problem is storage of solar energy and take advantage of them during the night or on cloudy days or dusty days and depends storage of solar energy on the nature and amount of solar energy, and the type of use and the period of use in addition to the total cost of the way storage and prefers not to use devices for storage to reduce the cost and benefit rather than that of solar energy directly only when its existence and is the subject of solar energy storage of topics that need to be more scientific research and new discoveries.

The storage temperature by water and rocks the best ways in the present time. As for the storage of electrical energy is still common method is to use liquid batteries (lead-acid batteries).

Types of solar cells:

Been manufacturing solar cells of different materials but most of these materials are rare nature first properties toxic polluting or complex manufacturing and expensive and some are still under study and research and it has focused attention on the solar cell manufacturing silicon so as to provide an element silicon in nature as well as to scientists The researchers were able to study this element extensive study and identified the various properties and suitability for the manufacture of solar crystal cells  cracked and crystallization.

1- solar silicon crystal cells:

These cells are made ​​of silicon through the development of silicon rods single or multiple crystallization then Aarb to chips and treated chemically and physically through various stages to reach solar cells.High efficiency of these cells ranging between 9 - 17% and mono silicon cells crystallization expensive in terms of technical difficulty and energy consumption, while many silicon crystallization cells are less expensive than single-crystallization and also less efficient.

2 - cells solar silicon Almoravid (cracked crystallization):

Material of these cells with a silicon where configuration crystal cracked the presence of the element hydrogen or other elements introduced intentionally to earn properties electrical characteristic and cells silicon Amorphous affordable for cells crystalline silicon where deposition layer stripe thin using small quantities of raw materials used in the few operations compared manufacturing processes crystalline . The manufacturing Amorphous silicon cells more and suitable for continuous self-Architectures.
Ranging efficiency cells of this article is between 4 - 9% for the large surface area and a little more than for a small surface area and that was influenced by the stability of the solar radiation.

But there is an important question must ask yourself namely
how solar cells work?

To answer this question all you have to do is watch this video

then you will be able to understand how solar cells work 

and thanks for watching

In this website we will taking about Nano Silicon Solar Cells 

At first you must know what is the solar cells and what is nanotechnology and how they are working with each other in addition to silicon to born Nano Silicon Solar Cells.

What is a Solar Cells?

A solar cell or photo-voltaic cell is a device which generates electricity directly from visible light by means of the photo-voltaic effect. In order to generate useful power, it is necessary to connect a number of cells together to form a solar panel, also known as a photo-voltaic module. There is more about the the different types of solar cell here. The nominal output voltage of a solar panel is usually 12 Volts, and they may be used singly or wired together into an array. The number and size required is determined by the available light and the amount of energy required.

What is Nanotechnology?

A basic definition: Nanotechnology is the engineering of functional systems at the molecular scale. This covers both current work and concepts that are more advanced.In its original sense, 'nanotechnology' refers to the projected ability to construct items from the bottom up, using techniques and tools being developed today to make complete, high performance products.