Tunable multicolor electroluminescent device
AssigneeUniversity of Rochester
InventorsSamson A. Jenekhe, Xuejun Zhang
Life of this patent
Estimating the term…
Abstract
The present invention relates to an electroluminescent device including an anode and a cathode capable of being electrically connected to a power supply and a voltage regulator, and a multi-layered polymer structure, between the anode and cathode, including a first polymer layer which includes a hole transfer polymer contacting the anode and a second polymer layer which includes an n-type conjugated polymer contacting the cathode, wherein changes in the voltage of current passing through the electroluminescent device change the color of electroluminescent emissions from the multi-layered polymer structure.
Claims30
An electroluminescent device comprising:
- an anode and a cathode capable of being electrically connected to a power supply and a voltage regulator and
- a multi-layered polymer structure, between the anode and cathode, comprising
- a first polymer layer comprising a hole transfer polymer contacting the anode;
- and
- a second polymer layer comprising an n-type conjugated polymer contacting the cathode,
- wherein changes in the voltage of current passing through the electroluminescent device change the color of electroluminescent emissions from the multi-layered polymer structure, the color of the electroluminescent emission being reversibly tunable to afford more than two colors.
An electroluminescent device comprising:
- an anode and a cathode capable of being electrically connected to a power supply and a voltage regulator and
- a multi-layered polymer structure, between the anode and cathode, comprising
- a first polymer layer comprising a first hole transfer polymer contacting the anode,
- a second polymer layer comprising a first n-type conjugated polymer contacting the cathode, and
- a third polymer layer positioned between the first and second polymer layers, the third polymer layer comprising a binary blend of a second hole transfer polymer and a second n-type conjugated polymer,
- wherein changes in the voltage of current passing through the electroluminescent device change the color of electroluminescent emissions from the multi-layered polymer structure.
Dependencies are inferred from the claim text.