Indium tin oxide modified transparent nanotube thin films as effective anodes for flexible organic light-emitting diodes
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208 (United States)
- Department of Physics, University of California, Los Angeles, California 90095 (United States)
Sn-doped In{sub 2}O{sub 3} (ITO) modified single-walled carbon nanotube (SW-CNT) transparent electrodes are fabricated on flexible polyethyleneterephthalate (PET) substrates by stamp printing SW-CNT films, followed by room temperature ion-assisted deposition of ITO. Polymer light-emitting diodes (PLEDs) using such film as anodes exhibit superior performance versus CNT-only controls. Flexible PLEDs with the following structure: PET/CNT(30 nm)-ITO(45 nm)/poly (3,4-ethylenedioxythiophene) poly (styrenesulfonate)/[poly(9,9-dioctyl-fluorene-co-N- (4-butylphenyl)diphenylamine)]+(4,4{sup '}-bis[(p-trichlorosilyl propylphenyl)-phenylamino]biphenyl)/[poly (9,9-dioctylfluorene-co-benzothiadiazole)]/CsF/Al, achieve a maximum light output of 8900 cd/m{sup 2} with a current efficiency of 4.5 cd/A. Bending test comparisons with ITO/PET show the ITO modified CNT/PET electrodes to be far more mechanically flexible.
- OSTI ID:
- 21124101
- Journal Information:
- Applied Physics Letters, Vol. 93, Issue 8; Other Information: DOI: 10.1063/1.2970049; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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