Recently, researchers at the North American Triangle (RTI) International Research Institute have developed a new solar technology that can reduce the cost of solar energy and accelerate its market application.
RTI solar cells are made of semiconductor particles called colloidal quantum dots, which have high photoelectric conversion efficiency and low cost and can compete with conventional solar cells.
Solar energy is a renewable, low-carbon energy source, but the high cost of photovoltaic cells has slowed its widespread use.
Solar cells developed by RTI are made of low-cost materials, and their process technology can also reduce the original production costs, including materials, infrastructure and production energy consumption.
A preliminary analysis of the cost of this technology material shows that the cost per square meter of production is less than $20, which is 75% lower than traditional solar cells.
"Solar power generation currently accounts for less than 1% of the world's electricity supply. To increase the use of solar energy, it is necessary to drastically reduce photovoltaic materials and production costs," said Ethan Klem, an RTI researcher and deputy chief scientist of the project. The technology illustrates every major cost driver for photovoltaics and will go a long way towards achieving this goal."
The technology has been written as an article published in the "Applied Physics Letters."
In the demonstration test, the photoelectric conversion efficiency provided by the battery has always exceeded 5%, which is comparable to other emerging photovoltaic technologies.
"The efficiency of these batteries is first limited by the amount of solar radiation absorbed," said Jay Lewis, a primary RTI researcher and other key researcher of the project. "There are many well-known technologies that enhance light absorption, which means that batteries Performance can be greatly improved."
The battery, which consists of a lightweight flexible layer, has the potential to be produced using a high-volume roll-to-roll process and an inexpensive coating process, which can reduce major costs and increase production. Unlike conventional solar cells, RTI developed batteries can be processed at room temperature, which further reduces input energy requirements and costs.
In addition to the low cost, the new battery also has several other key advantages, including high infrared sensitivity, allowing the battery to use more spectral range of light to generate electricity.
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