Now they need to install them on buildings and show people how well they work.
and lower production costs. Large-scale production of perovskites has been attempted using printing or coating techniques. However, roll-to-roll production has not been achieved before.To get to the bottom of the issues preventing such production, the Center brought together a team of chemists, materials scientists, and engineers all on-site.
One of the major hurdles the team came across was the gold electrode that was applied to the perovskite solar cell. Not only is this an expensive component of the entire assembly, but it also uses a slow evaporation process after the device is printed, preventing the production from being scaled up. The researchers were looking for a suitable alternative to the gold electrode and, by using X-ray diffraction analysis, found that carbon electrode ink was the right solvent to achieve drying of the film without dissolving the underlying layer."This innovative layer can be applied continuously and compatibly with the underlying layers at a low temperature and high speed," said David Beynon, Senior Research Officer at SPECIFIC, who was involved in the research.
"In just four years, this innovative method for PV has been designed and made, assessed and analyzed in detail, adapted and improved, making the possibility of printing and installing millions of meters of solar cells across the globe closer than ever," added Ershad Parvazian, Postdoctoral Researcher at the University in a press release.
The researchers now want to build something with printed solar cells that resemble a solar panel and then install it on buildings to demonstrate to people how well it works.Perovskite photovoltaics have shown great promise in device efficiency but also the promise of scalability through solution-processed manufacture. Efforts to scale perovskites have been taken through printable mesoporous scaffolds and slot die coating of flexible substrates roll-to-roll .
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