Halfway through the three-year research program, the Pearl Consortium of European Research Institutes has surpassed 21% efficiency on its flexible perovskite solar cells with bendable substrates and has demonstrated scalable roll-to-roll processes.
A research program -financed by EU consisting of ten European research organizations has manufactured a flexible perovskite solar cell on bendable substrates with an efficiency of 21.6%.
The Pearl-Flexible Perovskite solar cells with carbon electrode program is now more than halfway through its three-year research period, because it works on a target of 25% efficient, cheap flexible perovskite solar cells with carbon electrodes.
The Spanish research institute ICIQ achieved the efficiency of 21.6% due to special surface treatments consisting of molecular surface passion with Fullereen and Silaan self-assembled materials.
Other remarkable performance under the project so far are the University of Rome Tor Vergatas 17.03% Efficiency for greener Perovskiet solution and optimized mescoating protocols.
Elsewhere, the Finnish research organization VTT has developed A lab-scale champion cell through a printing process that combines engraving-printed perovskiet with Dimethylsulfoxide-Based ink that achieved a power conversion -efficiency of 14.8%. In the meantime, the Dutch research institute has achieved a power conversion efficiency of 9.1% with a fully roll-to-roll-end-that-coated perovskite stack.
VTT and TNO have both scaled up their roll-to-roll coating and patterns to larger sizes and have developed flexible mini modules with an area of 36 cm² and a power conversion efficiency of 4.5%.
The consortium has also developed protective incapaceans that keeps the solar cells stable for more than 2,000 hours under humid conditions, of 85 ° C temperature and 85% humidity, which they say it proves the durability for Real-World applications.
Riika Suhonen, Pearl Project coordinator at VTT, noted that the work of the project so far brings the efficiency goal of 25% “firmly within reach”.
The consortium has also carried out initial life cycle assessments that have found the use of carbon electrodes, recycled cap and green energy, can reduce the carbon footprint by more than 50%. Processes have also been developed to restore materials, including lead and cesium of production waste.
During the second phase of the project, the consortium is planning to further optimize its roll-to-roll production processes, use modules for use outside and to publish the results of his life cycle assessments. It also wants to market flexible cells in applications, including buildings-integrated photovoltaisies.
The Pearl project started at the beginning of October 2023 and receives financing of the research and innovation program of the European Union Horizon Europe. Work is also funded by the Horizon Europe financing guarantee of the VK Research and Innovation and The Swiss State Secretariat for Education, Research and Innovation.
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