Polymer band alignment at the interface with indium tin oxide: consequences for light emitting devices

1999 ◽  
Vol 310 (5-6) ◽  
pp. 391-396 ◽  
Author(s):  
Th. Kugler ◽  
W.R. Salaneck ◽  
H. Rost ◽  
A.B. Holmes
2005 ◽  
Vol 475-479 ◽  
pp. 1805-1808
Author(s):  
Gang Cheng ◽  
Zengqi Xie ◽  
Ying Fang Zhang ◽  
Yuguang Ma ◽  
Shi Yong Liu

A novel derivative of oligo(phenylenvinylene) (OPV), 2,5-diphenyl -1, 4-distyrylbenzene with two trans-double bonds (trans-DPDSB), is used as a blue emitting material in blue and white organic light-emitting devices (OLEDs). Blue devices with a configuration of indium-tin oxide (ITO)/N,N´-diphenyl-N,N´-bis(1-naphthyl)-(1,1´-biphenyl)-4,4´-diamine (NPB)/ trans-DPDSB / tris (8-hydroxyquinoline) aluminum (Alq3)/LiF/Al are constructed, where NPB, Alq3 and trans-DPDSB are used as hole-transporting, electron-transporting and light-emitting layers, respectively. The color of emission is changed from blue-green to pure blue when the trans-DPDSB layer is thicker. By inserting an ultrathin 5,6,11,12-tetraphenylnaphthacene (rubrene) yellow light-emitting layer between the Alq3 and trans-DPDSB layers, white OLEDs are obtained. The maximum efficiency and luminance of the blue and white devices are 1.2, 3.0 cd/A, and 1400, 7000 cd/m2, respectively.


2009 ◽  
Vol 4 (4) ◽  
pp. 239-244 ◽  
Author(s):  
C. O'Dwyer ◽  
M. Szachowicz ◽  
G. Visimberga ◽  
V. Lavayen ◽  
S. B. Newcomb ◽  
...  

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