Organic electronic device and processes for forming and using the same
View Patent ↗Organic electronic devices that include dummy electrodes are described, along with methods for using such devices.
1. An organic electronic device comprising at least one dummy electrode adjacent to at least one pair of active electrodes of the same polarity,
wherein the dummy electrode is biased so that an electric potential difference exists between the dummy electrode and a selected one of the pair of active electrodes that is equal to or greater than the electric potential difference between the selected one and an unselected one of the pair of active electrodes.
2. The organic electronic device of claim 1 , wherein the at least one dummy electrode adjacent to at least one pair of active electrodes is at a distance at which the dummy electrode and one active electrode of the pair generate an electric potential difference.
3. The organic electronic device of claim 1 , wherein the electric potential difference generated between the dummy electrode and the selected one of the pair of active electrodes draws cations from near the pair of active electrodes to the dummy electrode.
4. The organic electronic device of claim 3 , wherein the pair of active electrodes are anodes.
5. The organic electronic device of claim 4 , wherein the dummy electrode and the anode have substantially same composition.
6. The organic electronic device of claim 3 , wherein the dummy electrode is comprised of a conductive layer distinct from a layer having the pair of active electrodes.
7. The organic electronic device of claim 3 , wherein the dummy electrode is between the pair of active electrodes.
8. The organic electronic device of claim 3 further comprising a getter layer.
9. An organic electronic device comprising a plurality of dummy electrodes and a plurality of active electrodes of the same polarity, wherein the dummy electrodes and the plurality of active electrodes are substantially interdigitated with respect to each other and
wherein each of the dummy electrodes is located between one of the plurality of active electrodes that is selected and another one of the plurality of active electrodes that is unselected.
10. The organic electronic device of claim 9 , wherein each of the dummy electrodes generates an electric potential difference with the one selected active electrode which is equal to or greater than an electric potential difference generated between the one selected active electrode and the one unselected active electrode.
11. The organic electronic device of claim 10 , wherein the electric potential difference generated between the dummy electrode and the one selected active electrode draws cations towards the dummy electrode from near the surrounding selected active electrodes.
12. The organic electronic device of claim 11 , wherein the active electrodes are anodes.