They have identified and eliminated previously unknown
mechanical losses in organic solar cells. This will make the cells
more efficient. The research is being carried out by the Organic Electronics
Research Group at Abo Akademi University.
The research was carried out in collaboration with a Suzhou Institute for Nanotechnology and Nano Bionics team.
The structure-inverted solar cell with an area of one
square centimetre has been developed to have an efficiency of more than 18 per cent.
The results of this test have revealed that the cell can be
used for a long time. It is capable of emitting white light for 24,700 hours in
sunlight.
Previously, organic solar cells had unknown mechanical
losses, but the reason for this was not known. The researchers thought that
this could be avoided by using specific types of materials.
These organic solar cells, which are made of metal oxides
such as zinc oxide, form a narrow recombination region when they come into
contact with the bottom of the cells, which is why they lose photocurrent.
By using a thin silicon oxide nitrate passivation layer on
the bottom, these mechanical losses can be avoided. As a result, it is possible
to create organic solar cells with improved efficiency.
Organic solar cells are used in various modern devices. This type of battery is especially used in smartwatches and devices used for health.
This type of battery is also used to charge the devices used
by those travelling abroad. These batteries are generally used in various
devices that use solar energy.
These organic batteries are used in weather monitoring
devices and airports. Their role in geophysical research and space technology
is essential. If its power is improved now, the capabilities of all kinds of
devices will be improved.
If the capabilities of organic solar cells are improved, it
will be possible to obtain high-energy batteries at low cost. These cells with
excellent flexibility can be easily used in many places.
These types of cells can be easily installed in building
glasses and curved equipment. These lightweight and thin cells can be easily
used in space technology.
The environmental impact when using organic solar cells is
very low. These cells are excellent devices for reducing carbon emissions,
but the number of people using them is limited because their capabilities have
not improved.
If their capabilities are currently improved, there is a good
chance that carbon emissions will be reduced when everyone uses them. Since
these types of cells can be made in any shape and size, they are easy to make
and use.