Three-Color, Tunable, Organic Light-Emitting Devices
Zilan Shen,
Paul E. Burrows,
Vladimir Bulovi
,
Stephen R. Forrest,
Mark E. Thompson
An independently controlled, three-color, organic
light-emitting device was constructed with a vertically stacked pixel
architecture that allows for independent tuning of color, gray scale,
and intensity. The 12-layer device structure consists of sequentially
stacked layers of metal oxide, amorphous organic, crystalline organic, and metal thin films deposited by a combination of thermal evaporation and radio-frequency sputtering. Each of the three addressable colors is
sufficiently bright for flat panel video display applications. A novel
inverted structure is used for the middle device in the stack to lower
the maximum drive voltage of the compound pixel.
Z. Shen, P. E. Burrows, V. Bulovi, S. R. Forrest, Advanced
Technology Center for Photonics and Optoelectronic Materials,
Department of Electrical Engineering, Princeton University, Princeton,
NJ, 08544, USA.
M. E. Thompson, Department of Chemistry, University of Southern
California, Los Angeles, CA 90089, USA.
