Asymmetrically 4,7-disubstituted benzothiadiazoles as efficient non-doped solution-processable green fluorescent emitters.
2009
Asymmetrically 4,7-disubstituted benzothiadiazole derivatives involving a carbazolyl moiety at one end and a solubilizing dendron at the opposite end have been synthesized and characterized. A two-layer electroluminescent device based on one of these solution-processed molecular emitters revealed a maximal luminous efficiency of ∼10.6 cd A−1 and green light emission with CIE coordinates (0.34, 0.58).
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