Red fluorescent emitting materials based on di-tert-butyl chromene derivatives for organic light-emitting diodes

Eun Jae Na, Kum Hee Lee, Hoon Han, Young Kwan Kim, Seung Soo Yoon
Journal of Nanoscience and Nanotechnology 2013, 13 (1): 554-7
In this paper are described two di-tert-butyl chromene-containing red fluorescent materials (Red 1 and Red 2). To explore the electroluminescence properties of these materials, multilayered OLEDs using these materials as dopants in a Alq3 host were fabricated. In particular, a device using Red 2 as the dopant material showed maximum luminous efficiencies and power efficiencies of 1.14 cd/A and 0.58 Im/W, respectively. The CIEx,y coordinates of this device were (0.67, 0.32) at 7.0 V.

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