Browsing by Author "Wen, Ya-Ju"

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Synthesis and characterization of donor-acceptor-substituted fluorene fluorophores for non-doped red organic light emitting diodes
(2006-12-01)
Chiang, Chih-Long
;
Wen, Ya-Ju
;
Wen, Yuh-Sheng
;
Shu, Ching-Fong
;
Chen, Chin-Ti
A series of fluorene fluorophores bearing bis(4-methoxyphenyl)amino electron donating substitutent as well as bisbenzothiazolylvinyl (AFDB), benzothiazolylcyanovinyl (AFCB), or dicyanovinyl (AFDC) electron accepting substituent were synthesized and characterized. A non-doped red organic light-emitting diode (OLED) device based on AFCB exhibited deep red (lambda(el)(max) = 670 nm, CIE, x = 0.65, y = 0.34) electroluminescence with brightness over 2380 cd/m(2) and an external quantum efficiency higher than 1.2%.