Emission electroluminescence devices

MA Baldo, DF O Brien, Y You, A Shoustikov, S Sibley, ME Thompson, and SR Forrest, Highly efficient phosphorescent emission from organic electroluminescent devices, Nature, 395 151-154, 1998. 

FIGURE 3.23 External quantum efficiencies of PtOEP/CBP and PtOEP/Alq3 devices as a function of current with and without a BCP blocking layer (left). Emission spectra of CBP-based electroluminescent devices with and without a BCP exciton blocking layer (right). (From O Brien, D.F., Baldo, M.A., Thompson, M.E., and Forrest, S.R., Appl. Phys. Lett., 74, 442, 1999. With permission.)... 

X.T. Tao, S. Miyata, H. Sasabe, G.J. Zhang, T. Wada, and M.H. Jiang, Efficient organic red electroluminescent device with narrow emission peak, Appl. Phys. Lett., 78 279-281 (2001). 

T Sano, M Fujita, T Fujii, Y Hamada, K Shibata, and K Kuroki, Novel europium complex for electroluminescent devices with sharp red emission, Jpn. J. Appl. Phys., 34(Part 1) 1883-1887,1995. 

S Tokito, Y Taga, and T Tsutsui, Strongly modified emission from organic electroluminescent device with a microcavity, Synth. Met., 91 49-52, 1997. 

A blue light-emitting electroluminescent device was claimed with an emission layer comprising a polymer matrix and a chromophoric component, which was either blended with or covalently attached to the polymer matrix. The chromophoric components were... 

U.S. 6,040,069 Electroluminescence device with emission of polarized light... 

DPAs and 1-phenyl-1-alkynes show intense photo- and electroluminescences. A systematic investigation on the luminescence of poly(DPAs) has revealed that these polymers exhibit photoluminescence around 530 nm and electroluminescence around 550 nm. In a similar way, poly(l-phenyl-1-alkynes) photochemically and electrochemi-cally emit strong lights with spectral maxima located around 455 and 470 nm, respectively. Green and blue emissions are observed from the electroluminescent devices using poly(DPAs) and poly(l-phenyl-1-alkynes) as the emission layers, respectively. ... 

A benzo[ /]thioxanthene unit has been incorporated in the emission layer of an OLED display <2004USP2004140761> as part of a polycyclic pigment 614 employed for coloring polymers, inks and toners <2000USP6046335> and also as the key component 615 of a red fluorescence-conversion film and associated electroluminescent devices <1998JPP10316964>. 

Aluminium-pyrazol-5-one derivatives, (I), prepared by Kathirgamanathan [1] were effective as white light emitters and used in organic electroluminescent devices. Bis(2-phenylimidazo[l,2-a]pyridinato-N,C)iridium derivatives, (II), prepared by Lussier [2] were effective as phosphorescent emission agents. 

Fluorene copolymers, (III), were prepared by Sohn [3] that offered improved emission efficiency and blue light color purity and were used in organo-electroluminescent devices. 

Figure 11.27 PL spectrum (- -) for Sm(DBM)3(Bath) film by excitation at 448 nm and EL spectrum (-) for the device driven by 4.5 V in the NIR region [73]. (Reproduced from B. Chu et al., Observation of near infrared and enhanced visible emissions from electroluminescent devices with organo samarium(III) complex, Journal of Physics D Applied Physics, 39, 4549-4552, 2006, with permission from Institute of Physics and lOP Publishing Limited.)...

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