We conducted combustion ion chromatography, TOFSIMS, and LC/MS measurements to identify impurities in OLED materials affecting device lifetime decreases. The results of various analyses indicated that the synthesis lot with a low device lifetime contained a significant amount of brominated Host‐1 (Host‐1‐Br), and we successfully identified the compound responsible for the degradation of the device lifetime.
No takes yet. Share an insight, caveat, or question.
Takano et al. (2024) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: