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Samsung Researchers Study The Degradation Of Blue PHOLED Materials, Offer New Design Strategies For Longer Lasting Blue Emitters
Mar 27, 2018

Researchers from Samsung Electronics and the Ewha Womans University in Korea collaborated in a new study of the degradation in blue phosphorescence OLED materials. This study demonstrate the importance of controlling exciton-induced electron transfer, and more importantly provides strategies for the design of longer-lasting blue PHOLED materials.

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The researchers said that the study revealed the charge-neutral generation of polaron pairs (radical ion pairs) by electron transfer from the dopant to host excitons. According to the study, device lifetime correlated linearly with the rate constant for the annihilation of the radical ion pair.

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