Abstract
AbstractWe show that chemical reactions are the major intrinsic degradation mechanisms in high‐performance organic light emitting devices. The resulting reaction products create deep traps, non‐radiative recombination centers, and luminescence quenchers in organic devices. The main reaction pathways, induced by excitons are fragmentations, oligomerizations, and complexations. We show that laser‐desorbed mass spectroscopy can be used as a predictive method to compare different materials in terms of the expected lifetime for OLEDs.
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