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Steric Inhibition of π-Stacking:  1,3,6,8-Tetraarylpyrenes as Efficient Blue Emitters in Organic Light Emitting Diodes (OLEDs)

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journal contribution
posted on 06.12.2007, 00:00 by Jarugu Narasimha Moorthy, Palani Natarajan, Parthasarathy Venkatakrishnan, Duo-Fong Huang, Tahsin J. Chow
The sterically congested tetraarylpyrenes 13, which can be readily accessed by Suzuki coupling, exhibit no-aggregation (π-stacking) behavior in both solution and solid states. The indisposed tendency of 13 toward crystallization and their moderate molecular dimensions permit exploitation as blue light emitting materials in OLEDs with respectable device performances.