Organic light-emitting diodes having carbon nanotube anodes.
Single-walled carbon nanotube (SWNT) films on flexible PET (polyethyleneterephthalate) substrates are used as transparent, flexible anodes for organic light-emitting diodes (OLEDs). For polymer-based OLEDs having the structure: SWNT/PEDOT-PSS:MeOH/TFB (poly(9,9-dioctylfluorene-co-N-(4-butylphenyl)diphenylamine)) + TPD-Si(2) (4,4'-bis[(p-trichlorosilylpropylphenyl)phenylamino]biphenyl) /BT (poly(9,9-dioctylfluorene-co-benzothiadiazole))/CsF/Al, a maximum light output of 3500 cd/m(2) and a current efficiency of 1.6 cd/A have been achieved. The device operational lifetime is comparable to that of devices with Sn-doped In(2)O(3) (ITO)/PET anodes. The advantages of this novel type of anode over conventional ITO are discussed.
Li
Jianfeng
J
Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA.
Hu
Liangbing
L
Wang
Lian
L
Zhou
Yangxin
Y
Grüner
George
G
Marks
Tobin J
TJ
D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008029:Lighting; D008422:Materials Testing; D008567:Membranes, Artificial; D015394:Molecular Structure; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009930:Organic Chemicals / Q000737:chemistry*; D011093:Polyethylene Terephthalates / Q000737:chemistry; D012666:Semiconductors; D013499:Surface Properties; D013997:Time Factors
D008567:Membranes, Artificial; D037742:Nanotubes, Carbon; D009930:Organic Chemicals; D011093:Polyethylene Terephthalates