Surface properties of treated ITO anodes for organic light-emitting devices
The effect of oxygen plasma treatment on the surface properties of indium-tin oxide (ITO) anodes and the changes in surface properties of treated ITO anodes with aging time were investigated by X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS) measurements. It w...
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| Veröffentlicht in: | Applied surface science 2005-08, Vol.249 (1), p.271-276 |
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| creator | You, Zhong Zhi Dong, Jiang Ya |
| description | The effect of oxygen plasma treatment on the surface properties of indium-tin oxide (ITO) anodes and the changes in surface properties of treated ITO anodes with aging time were investigated by X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS) measurements. It was observed that oxygen plasma treatment increased the oxygen concentration, decreased the carbon concentration and raised the ITO work function, and thereby improved the surface properties of ITO. With the increase of aging time, however, the improved ITO surface properties tended to decay and the ITO work function decreased. In addition, the aging effect of treated ITO anodes on the performance of organic light-emitting devices (OLEDs) was studied with respect to the driving voltage, electroluminescent luminance and efficiency. Experimental results reveal that the ITO anodes aged for various times result in significant differences in electrical and optical characteristics, which become worse as the aging time increases. |
| doi_str_mv | 10.1016/j.apsusc.2004.12.006 |
| format | Article |
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It was observed that oxygen plasma treatment increased the oxygen concentration, decreased the carbon concentration and raised the ITO work function, and thereby improved the surface properties of ITO. With the increase of aging time, however, the improved ITO surface properties tended to decay and the ITO work function decreased. In addition, the aging effect of treated ITO anodes on the performance of organic light-emitting devices (OLEDs) was studied with respect to the driving voltage, electroluminescent luminance and efficiency. Experimental results reveal that the ITO anodes aged for various times result in significant differences in electrical and optical characteristics, which become worse as the aging time increases.</description><identifier>ISSN: 0169-4332</identifier><identifier>EISSN: 1873-5584</identifier><identifier>DOI: 10.1016/j.apsusc.2004.12.006</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Cross-disciplinary physics: materials science; rheology ; Electronics ; Exact sciences and technology ; Indium-tin oxide (ITO) ; Light-emitting devices ; Materials science ; Optoelectronic devices ; Organic light-emitting device (OLED) ; Physics ; Semiconductor electronics. Microelectronics. Optoelectronics. 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It was observed that oxygen plasma treatment increased the oxygen concentration, decreased the carbon concentration and raised the ITO work function, and thereby improved the surface properties of ITO. With the increase of aging time, however, the improved ITO surface properties tended to decay and the ITO work function decreased. In addition, the aging effect of treated ITO anodes on the performance of organic light-emitting devices (OLEDs) was studied with respect to the driving voltage, electroluminescent luminance and efficiency. Experimental results reveal that the ITO anodes aged for various times result in significant differences in electrical and optical characteristics, which become worse as the aging time increases.</description><subject>Applied sciences</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Indium-tin oxide (ITO)</subject><subject>Light-emitting devices</subject><subject>Materials science</subject><subject>Optoelectronic devices</subject><subject>Organic light-emitting device (OLED)</subject><subject>Physics</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. 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It was observed that oxygen plasma treatment increased the oxygen concentration, decreased the carbon concentration and raised the ITO work function, and thereby improved the surface properties of ITO. With the increase of aging time, however, the improved ITO surface properties tended to decay and the ITO work function decreased. In addition, the aging effect of treated ITO anodes on the performance of organic light-emitting devices (OLEDs) was studied with respect to the driving voltage, electroluminescent luminance and efficiency. Experimental results reveal that the ITO anodes aged for various times result in significant differences in electrical and optical characteristics, which become worse as the aging time increases.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apsusc.2004.12.006</doi><tpages>6</tpages></addata></record> |
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| ispartof | Applied surface science, 2005-08, Vol.249 (1), p.271-276 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Cross-disciplinary physics: materials science rheology Electronics Exact sciences and technology Indium-tin oxide (ITO) Light-emitting devices Materials science Optoelectronic devices Organic light-emitting device (OLED) Physics Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Surface properties Surface treatments |
| title | Surface properties of treated ITO anodes for organic light-emitting devices |
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