What They Say
Nature published an article from a joint US and Taiwanese research group, explaining how perovskite nanocrystals can be stabilised in metal–organic framework (MOF) thin films to make stable LEDs. The perovskite nanocrystals in MOF thin films can maintain the photoluminescence and electroluminescence against continuous ultraviolet irradiation, heat and electrical stress. The project created an LED with maximum external quantum efficiency of over 15% and a high brightness of over 105?cd?m?2 after the device reaches stabilization. During LED operation, the nanocrystals can be well preserved, free of ion migration or crystal merging through protection by the MOF matrix, leading to a stable performance over 50 hours.
What We Think
It’s quite amazing how much work is going on in the world of perovskites at the moment. (BR)
