What They Say
A group from Northwestern University in Illinois, US, has developed a process to synthesize perovskite-based nanocrystals that can be deposited using an organic ink. The dots can be as small as 50 nanometers. The crystals could be used for solar cells or displays. The performance is said to be better than current LEDs.
What We Think
Traditional photolithography is not compatible with halide perovskites, so this kind of deposition technique is needed. The group used a technique it calls polymer pen lithography (PPL). Of course, it’s research and not commercialised, but looks very interesting. (BR)
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