One of the biggest drawbacks of solar cells available on the market today is their high cost, which keeps homeowners from opting for renewable energy generation. A research conducted at the University of Texas At Austin could answer the problem with the development of a new type of solar cells, which could easily be printed like a newspaper.
The researchers are aiming to reduce the cost of solar cells by as much as 90% by replacing the expensive gas-phase deposition in a vacuum chamber with a new nanomaterial solution. The cells are based on the use of specialized inks that can be printed using a roll-to-roll printing process on a plastic substrate or even stainless steel.
The light-absorbing nanomaterials are 10,000 times thinner than a strand of hair and because of this microscopic size they carry better physical properties that can enable their use in higher-efficiency devices. Currently the cells developed are only 1% efficient, but the research team is hoping that the final version, which could take about 5 years to develop, will be at least 10% efficient.
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