Highly efficient blue organic light emitting device using indium-free transparent anode Ga:ZnO with scalability for large area coating

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3282526· OSTI ID:21476137

Liang, Wang; Matson, Dean W; Polikarpov, Evgueni; Swensen, James S; Bonham, Charles C; Cosimbescu, Lelia; Gaspar, Daniel J; Padmaperuma, Asanga B ^[1]; Berry, Joseph J; Ginley, David S ^[2]

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1. Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352 (United States)
2. National Center for Photovoltaics, National Renewable Energy Laboratory, Golden, Colorado 80401 (United States)

Organic light emitting devices have been achieved with an indium-free transparent anode, Ga doped ZnO (GZO). A large area coating technique was used (RF magnetron sputtering) to deposit the GZO films onto glass. The respective organic light emitting devices exhibited an operational voltage of 3.7 V, an external quantum efficiency of 17%, and a power efficiency of 39 lm/W at a current density of 1 mA/cm{sup 2}. These parameters are well within acceptable standards for blue OLEDs to generate a white light with high enough brightness for general lighting applications. It is expected that high-efficiency, long-lifetime, large area, and cost-effective white OLEDs can be made with these indium-free anode materials.

• OSTI ID: 21476137
• Journal Information: Journal of Applied Physics, Vol. 107, Issue 4; Other Information: DOI: 10.1063/1.3282526; (c) 2010 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANODES
CURRENT DENSITY
DEPOSITION
DOPED MATERIALS
FILMS
GALLIUM COMPOUNDS
GLASS
INDIUM
LIGHT EMITTING DIODES
ORGANIC COMPOUNDS
QUANTUM EFFICIENCY
SEMICONDUCTOR MATERIALS
SPUTTERING
ZINC OXIDES
CHALCOGENIDES
EFFICIENCY
ELECTRODES
ELEMENTS
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
ZINC COMPOUNDS