Tandem OLED device with intermediate connector
First Claim
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1. A tandem OLED device comprising:
- (a) an anode;
(b) a cathode;
(c) at least two electroluminescent units disposed between the anode and the cathode, wherein each of the electroluminescent units includes at least one hole-transporting layer and one organic light-emitting layer; and
(d) an intermediate connector disposed between adjacent electroluminescent units,wherein the intermediate connector includes an n-doped organic layer and an electron-accepting layer, the electron-accepting layer being disposed closer to the cathode than the n-doped organic layer,wherein the n-doped organic layer includes an alkali metal and an organic alkali metal complex, andwherein the intermediate connector further includes an undoped layer in contact with the n-doped layer on the side closer to the anode.
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Abstract
A tandem OLED device including an anode; a cathode; at least two electroluminescent units disposed between the anode and the cathode, wherein each of the electroluminescent units includes at least one hole-transporting layer and one organic light-emitting layer; and an intermediate connector disposed between adjacent electroluminescent units, wherein the intermediate connector includes an n-doped organic layer and an electron-accepting layer, the electron-accepting layer being disposed closer to the cathode than the n-doped organic layer, and wherein the n-doped organic layer includes an alkali metal and an organic alkali metal complex.
31 Citations
10 Claims
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1. A tandem OLED device comprising:
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(a) an anode; (b) a cathode; (c) at least two electroluminescent units disposed between the anode and the cathode, wherein each of the electroluminescent units includes at least one hole-transporting layer and one organic light-emitting layer; and (d) an intermediate connector disposed between adjacent electroluminescent units, wherein the intermediate connector includes an n-doped organic layer and an electron-accepting layer, the electron-accepting layer being disposed closer to the cathode than the n-doped organic layer, wherein the n-doped organic layer includes an alkali metal and an organic alkali metal complex, and wherein the intermediate connector further includes an undoped layer in contact with the n-doped layer on the side closer to the anode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification