Given the ubiquity of devices in our lives and the waste that they create, researchers have been seeking various solutions to create more environmentally friendly electronics and display technologies.
To this end, scientists in Germany have developed a new technology and technique for producing more sustainable displays for devices that can biodegrade and thus be discarded without producing pollution, they said.
A team from the Karlsruhe Institute of Technology (KIT) developed new display technology based on the so-called electrochromic effect of the organic material used in the display, which uses light absorption to change colors, researchers said. They produced the technology using inkjet printing.
Karlsruhe Institute of Technology
An innovative combination of processes enables the interconnection of cells to form modules with nearly no losses. (Photo: Amadeus Bramsiepe, KIT)
From cell to module without loss of efficiency: This is one of the main challenges of perovskite photovoltaics. Researchers at Karlsruhe Institute of Technology (KIT) have now managed to produce perovskite solar modules with minimum scaling loss. For this purpose, they combined laser-based series interconnections with vacuum processing of all layers of the solar cell. They achieved an 18 percent efficiency on an area of four square centimeters – a world record for vacuum-processed perovskite solar modules.
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Home > Press > Shedding light on perovskite films: Efficient materials for future solar cells - New model to determine photoluminescence quantum efficiency
In terms of efficiency, perovskite solar cells have caught up on silicon solar cells, but some of their properties are not yet understood completely.
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Markus Breig, KIT
Abstract:
Photovoltaics decisively contributes to sustainable energy supply. The efficiency of solar cells in directly converting light energy into electrical energy depends on the material used. Metal-halide perovskites are considered very promising materials for solar cells of the next generation. With these semiconductors named after their special crystal structure, a considerable increase in efficiency was achieved in the past years. Meanwhile, perovskite solar cells have reached an efficiency of up to 25.5 percent, which is quite close to that of silicon solar cells that are presently dominating the market. Moreover,
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IMAGE: In terms of efficiency, perovskite solar cells have caught up on silicon solar cells, but some of their properties are not yet understood completely. view more
Credit: Markus Breig, KIT
Photovoltaics decisively contributes to sustainable energy supply. The efficiency of solar cells in directly converting light energy into electrical energy depends on the material used. Metal-halide perovskites are considered very promising materials for solar cells of the next generation. With these semiconductors named after their special crystal structure, a considerable increase in efficiency was achieved in the past years. Meanwhile, perovskite solar cells have reached an efficiency of up to 25.5 percent, which is quite close to that of silicon solar cells that are presently dominating the market. Moreover, the materials needed for perovskite solar cells are rather abundant. The solar cells can be produced easily and at low cost and they can be used for various appli
Efficient Materials for Future Solar Cells – New Model to Determine Photoluminescence Quantum Efficiency
In terms of efficiency, perovskite solar cells have caught up on silicon solar cells, but some of their properties are not yet understood completely. (Photo: Markus Breig, KIT)
Perovskite semiconductors are considered promising materials for solar cells of the next generation. Suitability of a semiconductor for photovoltaics is reflected among others by the so-called photoluminescence quantum efficiency. Researchers of Karlsruhe Institute of Technology (KIT) have now developed a model, by means of which photoluminescence quantum efficiency of perovskite films can be determined exactly for the first time. This is reported in Matter (DOI: 10.1016/j.matt.2021.01.019).