Engineers at the University of California at Los Angeles have developed solar cells that absorb light primarily in the infrared range and therefore have sufficient transparency for use in windows and screens of electronic devices.
Samples of transparent solar cells of different colors Photo: Chun-Chao Chen et al, 2013 / UCLA
Description of the development is published in the journal Energy & Environmental Science, brief info about it can be found on the website of the university.
The device is created on the basis of two thin organic polymer solar cells separated by a special intermediate layer. The intermediate layer enables to control color light passing through the device.
The quantum yield of the new solar cell is not too large - they convert only about seven percent of the absorbed energy into electricity. The record efficiency solar cells is 44.4 percent.
Previously, engineers have been trying to extend the sensitivity of solar cells due to the infrared radiation, but then it was accomplished by the use of carbon nanotubes.
Samples of transparent solar cells of different colors Photo: Chun-Chao Chen et al, 2013 / UCLA
Description of the development is published in the journal Energy & Environmental Science, brief info about it can be found on the website of the university.
The device is created on the basis of two thin organic polymer solar cells separated by a special intermediate layer. The intermediate layer enables to control color light passing through the device.
The quantum yield of the new solar cell is not too large - they convert only about seven percent of the absorbed energy into electricity. The record efficiency solar cells is 44.4 percent.
Previously, engineers have been trying to extend the sensitivity of solar cells due to the infrared radiation, but then it was accomplished by the use of carbon nanotubes.
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