Application of an evaporable fluoro-molecule as an anode buffer layer in organic electroluminescent devices
| Autor: | Shi Wun Tong, D.Q. Gao, Chun-Sing Lee, Shiu-Lun Lai, Shuit-Tong Lee, F.L. Wong, Michael C. Y. Chan |
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| Rok vydání: | 2004 |
| Předmět: |
Materials science
business.industry Oxide General Physics and Astronomy Electroluminescence medicine.disease_cause Buffer (optical fiber) Anode chemistry.chemical_compound Chemical engineering chemistry medicine OLED Molecule Optoelectronics Physical and Theoretical Chemistry business Layer (electronics) Ultraviolet |
| Zdroj: | Chemical Physics Letters. 399:337-341 |
| ISSN: | 0009-2614 |
| Popis: | We have synthesized a small molecule fluoro-material, N , N , N ′, N ′-tetra(4-methylphenyl)-2,2′,3,3′,5,5′,6,6′-octafluoro-biphenyl-4,4′-diamine (POFDA), as an anode buffer layer for organic light-emitting devices (OLEDs). This fluoro-material shows obvious hydrophobicity, which stabilizes the indium-tin oxide (ITO) surface from moisture and air contaminants. In addition, insertion of an ultrathin POFDA layer at the ITO/organic interface significantly reduces operating voltage, and increase efficiency, and operational stability. Ultraviolet photoelectron spectroscopic analysis suggested that the performance improvement is related to the reduction in hole-injection barrier at the anode contact. |
| Databáze: | OpenAIRE |
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