OLED Lifetime (IMAGE)

Kyushu University, OPERA

OLED Lifetime

Caption

New research shows that miniscule amounts of impurities in vacuum are being incorporated into OLEDs during fabrication and leading to large variations in lifetime. By reducing the time OLEDs spend in the deposition chamber during fabrication, impurities can be reduced and lifetime enhanced. Analysis of the impurities indicates sources that include previously deposited materials and plasticizers from chamber components.

Credit

Hiroshi Fujimoto and William J. Potscavage, Jr.

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