Efficient inverted organic light-emitting devices with self or intentionally Ag-doped interlayer modified cathode

Journal Article · Mon Mar 03 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4868031· OSTI ID:22283038

Liu, Wenbo; Liu, Shihao; Yu, Jing; Zhang, Wei; Wen, Xuemei; Yin, Yongming; Zhang, Letian; Chen, Ping; Xie, Wenfa ^[1]

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1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012 (China)

Green phosphorescent inverted organic light-emitting devices (IOLEDs) with self or intentionally Ag-doped interlayer modified cathode were demonstrated. The IOLEDs show low driving voltage and high efficiency. For example, the efficiency of inverted bottom-emitting OLED with ITO cathode is comparable with the conventional bottom-emitting OLED with ITO anode. The top-emitting IOLED with Ag cathode shows high current efficiency of 76.4 cd/A which is 2.38 times of that of the conventional bottom-emitting OLED with ITO anode. The results indicate that the electron injection from cathode was observably improved by the Ag-doped interlayer and such interlayer is cathode independent relatively.

• OSTI ID: 22283038
• Journal Information: Applied Physics Letters, Vol. 104, Issue 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANODES
CATHODES
COMPARATIVE EVALUATIONS
DOPED MATERIALS
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRON BEAM INJECTION
ENERGY EFFICIENCY
INDIUM COMPOUNDS
LIGHT EMITTING DIODES
ORGANIC COMPOUNDS
SILVER COMPOUNDS
TIN OXIDES