High-efficiency optoelectronic devices based on perovskites
The EU-funded HELD project plans to engineer stable, highly luminescent heterostructures based on defect-tolerant perovskites and integrate them into thin-film optoelectronic devices. The primary targeted devices are blue and white planar electroluminescent devices, high-efficiency solar cells and electrically pumped lasers. The project will use processing methods that are compatible with large-area industrial processes. The amount of lead in the perovskite structure will be reduced by the use of less toxic materials, such as tin, and mixtures containing silver and bismuth. Furthermore, vapour deposition methods should allow the fabrication of perovskites in multiple layered heterostructures. This is expected to increase their thermal and structural stability and, most importantly, their photoluminescence efficiency.
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