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July 3, 2018  |  By Electonics & Comm. Engg. In Blog, News

New Approach to Plastic Solar Cells

New Approach to Plastic Solar Cells
New Approach to Plastic Solar Cells

From the very long time, humankind has been harnessing solar energy in order to power the homes, gadgets as well as industries. Now there are plastic solar cells which are based on the conducting organic polymers and they are very useful in making lightweight and cheap solar cells.

But there is one issue with these types of the solar cells which is that their solar power efficiencies are very much related to the way the different type of materials mix and crystallize in thin films. It means there should be complex and careful processing in order to make efficient polymer solar cells.

Now the polymers have been redesigned by the team of researchers which are one of their earlier reported polymers in order to make a new kind of solar cells which need no extra special treatments. They have also considered the issue of keeping sufficient power conversion efficiency of solar power to electricity. These findings of the researchers have been published in many news papers.

According to the team of researchers, good efficiencies have now been achieved by the conventional organic solar cells but the polymer films are requiring special processing in order to ensure correct crystallization in these devices. The team is currently focusing on polymer blends in order to avoid these kinds of issue.

The working of these organic cells is based on the light energy exciting electrons in a polymer. These electrons are helpful in transferring to the soccer ball shaped fullerene as well as it can move to the positive side of the solar cell. The space which is left by an electron is known as hole which must move through the polymers to other side of the device in order to complete the circuit.

It is the very well known by the researchers that one of these polymers could not transport holes with effectively. So they have redesigned the structure by adding the extra component which is able to improve its hole conductivity as well as can enhance the solar power conversion performance.

If the researches are able to make these cells without paying any close attention to the crystal structure of the polymer films could allow them in order to produce these devices by simple printing methods that can considerably lower cost of the devices as well as lead to the much wider uptake.

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