A 2,7-functionalized pyrene-based emitter for highly efficient OLEDs has been developed. The chromophore can be prepared on a large scale in good yields. It offers an exceptional deep blue photoluminescence (CIE: x = 0.16, y = 0.024) and good external quantum efficiency (EQE) of 3.1% when employed in a guest–host system OLED.
D. Chercka, S. Yoo, M. Baumgarten, J. Kim and K. Müllen, J. Mater. Chem. C, 2014, 2, 9083 DOI: 10.1039/C4TC01801J
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