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Recently, Jing Kong, a professor in the Department of Electrical Engineering and Computer Science at the Massachusetts Institute of Technology, successfully developed a bendable and transparent solar cell
using graphene.
It is reported that this solar cell does not need to be installed separately and can be integrated into mobile phones and computer screens, which is expected to significantly reduce the manufacturing cost
of these electronic products.
For nearly 10 years, researchers have been developing a variety of transparent organic solar cells and have made significant progress
.
These cells offer several advantages over silicon-based solar cells: they are simple to manufacture, inexpensive, light and flexible, and easy to transport to remote areas
without a grid.
But these studies face a long-standing problem: they cannot find a suitable electrode material
that combines conductivity and optical transparency.
At present, the most widely used material is indium tin oxide (ITO), which meets the requirements for conductivity and transparency, but is too hard, easy to break and break when bent, and indium is a rare metal that is too expensive to produce solar cells
.
The graphene layer becomes the best alternative
to ITO.
This material, made of carbon that can be found everywhere, is not only highly conductive, bendable and transparent, but also makes electrodes only 1 nanometer thick, which is more in line with the needs of
ultra-thin organic solar cells.
Recently, Jing Kong, a professor in the Department of Electrical Engineering and Computer Science at the Massachusetts Institute of Technology, successfully developed a bendable and transparent solar cell
using graphene.
It is reported that this solar cell does not need to be installed separately and can be integrated into mobile phones and computer screens, which is expected to significantly reduce the manufacturing cost
of these electronic products.
For nearly 10 years, researchers have been developing a variety of transparent organic solar cells and have made significant progress
.
These cells offer several advantages over silicon-based solar cells: they are simple to manufacture, inexpensive, light and flexible, and easy to transport to remote areas
without a grid.
But these studies face a long-standing problem: they cannot find a suitable electrode material
that combines conductivity and optical transparency.
At present, the most widely used material is indium tin oxide (ITO), which meets the requirements for conductivity and transparency, but is too hard, easy to break and break when bent, and indium is a rare metal that is too expensive to produce solar cells
.
The graphene layer becomes the best alternative
to ITO.
This material, made of carbon that can be found everywhere, is not only highly conductive, bendable and transparent, but also makes electrodes only 1 nanometer thick, which is more in line with the needs of
ultra-thin organic solar cells.
