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Recently, scientists at the Massachusetts Institute of Technology in the United States have developed an ultra-light, ultra-thin flexible solar cell that can attach to
many objects.
This solar cell is mainly composed of two parts, substrate and coating, and is only 2 microns thick, equivalent to one-fiftieth of the diameter of a human hair, one-thousandth of a traditional solar cell, and is likely to be the lightest and thinnest solar cell
to date.
Vladimir Biravik, a professor of electrical engineering at MIT who led the study, said: "The batteries are so light that if you integrate them into your shirt or laptop, you won't even feel their presence
.
Biravik said that the leading edge of this technology is to complete the manufacture
of all parts in one step.
Since no additional processes are required, the exposure of electronic components to dust and other contaminants is reduced, ensuring product quality and performance
.
At the same time, the simplification of the production process also opens up the possibility
of large-scale production.
Biravik's research team has validated the idea and built a prototype
in the lab.
They used parylon (polyparaxylene), a common flexible polymer, as the substrate and coating for solar cells, and another material called DBP (dibutyl phthalate) to make the absorbent layer
.
The entire manufacturing process takes place in a vacuum chamber at room temperature without any solvents
.
Compared to conventional solar cells, there is no need for high temperatures and toxic chemicals
.
In a vacuum chamber, substrates and solar cells are "grown" by vapor deposition techniques
.
This solar cell can be used both with traditional glass as a carrier and with fabric, paper, plastic and other materials
.
Although the conversion efficiency of the new device is not very high, because of the light weight, the power-to-weight ratio is enough to dominate the world
.
A typical silicon-based solar module, glass accounts for a large part of the total weight, producing 15 watts of electricity per kilogram, while the new thin-film solar cell can produce 6 watts per gram, 600 times
more than the former.
Recently, scientists at the Massachusetts Institute of Technology in the United States have developed an ultra-light, ultra-thin flexible solar cell that can attach to
many objects.
This solar cell is mainly composed of two parts, substrate and coating, and is only 2 microns thick, equivalent to one-fiftieth of the diameter of a human hair, one-thousandth of a traditional solar cell, and is likely to be the lightest and thinnest solar cell
to date.
Vladimir Biravik, a professor of electrical engineering at MIT who led the study, said: "The batteries are so light that if you integrate them into your shirt or laptop, you won't even feel their presence
.
Biravik said that the leading edge of this technology is to complete the manufacture
of all parts in one step.
Since no additional processes are required, the exposure of electronic components to dust and other contaminants is reduced, ensuring product quality and performance
.
At the same time, the simplification of the production process also opens up the possibility
of large-scale production.
Biravik's research team has validated the idea and built a prototype
in the lab.
They used parylon (polyparaxylene), a common flexible polymer, as the substrate and coating for solar cells, and another material called DBP (dibutyl phthalate) to make the absorbent layer
.
The entire manufacturing process takes place in a vacuum chamber at room temperature without any solvents
.
Compared to conventional solar cells, there is no need for high temperatures and toxic chemicals
.
In a vacuum chamber, substrates and solar cells are "grown" by vapor deposition techniques
.
This solar cell can be used both with traditional glass as a carrier and with fabric, paper, plastic and other materials
.
Although the conversion efficiency of the new device is not very high, because of the light weight, the power-to-weight ratio is enough to dominate the world
.
A typical silicon-based solar module, glass accounts for a large part of the total weight, producing 15 watts of electricity per kilogram, while the new thin-film solar cell can produce 6 watts per gram, 600 times
more than the former.
