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Studies on the photodegradation of red, green and blue phosphorescent OLED emitters

Schmidbauer, Susanna ; Hohenleutner, Andreas ; König, Burkhard


The photodegradation behavior of four well-established iridium emitters was investigated. Irradiation of the samples in different solvents and under atmospheric as well as inert conditions helped to identify several pathways that can contribute to the deterioration of these compounds. Degradation via singlet oxygen or the excited states of the emitters as well as the detrimental influence ...


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