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Lin Research on Polymer-ligated Perovskite Nanocrystals Published in Science Advances
Armored With Plastic ‘Hair’ and Silica Shell, New Perovskite Nanocrystals Show Enhanced Durability.
Perovskite nanocrystals hold promise for improving a wide variety of optoelectronic devices – from lasers to light emitting diodes (LEDs) – but problems with their durability still limit the material’s broad commercial use.
MSE Professor Zhiqun Lin and his team have demonstrated a novel approach aimed at addressing the material’s durability problem: encasing the perovskite inside a double-layer protection system made from plastic and silica.
In a study published Nov. 29 in the journal Science Advances, the research team describes a multistep process to produce encased perovskite nanocrystals that exhibit strong resistance to degradation in moist environments.
“Perovskite nanocrystals are highly susceptible to degradation, particularly when they come into contact with water,” said Zhiqun Lin, a professor in the Georgia Tech School of Materials Science and Engineering. “This dual-shelled system offers two layers of protection while allowing each nanocrystal to remain a distinct and separate unit, achieving the maximum amount of surface area and other physical characteristics of the perovskite needed for optimizing optoelectronic applications.”