Organic electroluminescence device
AssigneeCity University of Hong Kong
InventorsShuit-Tong Lee, Chun Sing Lee, Pengfei Wang, Zhiyuan Xie
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Abstract
An electroluminescence device has an anode, a cathode and an emitting layer located between the anode and the cathode. The emitting layer contains a compound selected from a group consisting of neutral red and its derivatives.
Claims4
An electroluminescence device comprising an anode, a cathode, and an emitting layer located between the anode and the cathode, wherein the emitting layer contains a compound selected from the group consisting of neutral red and derivatives of neutral red.
Use of a compound of having a formula selected from the group consisting of formulas I, II, III, IV, and V
- for doping a light emitting layer of an electroluminescence device, wherein
- in general formulas I, II, IV, and V, R1-R8 are selected independently from the group consisting of hydrogen, halogen, cyano, nitro, carbonyl, sulfone, ester, alkoxy, alkyl, alkylamino, dialkylamino, arylamino, diarylamino, haloalkyl containing a lower alkyl, hydroxyalkyl containing a lower alkyl, styryl, alkoxyl, alkyloxy, alkylthio, aryloxy, arylthio, siloxy, aryl or substituted aryl, and substituted or unsubstituted heterocyclic hydrocarbons, and
- in formula III, R1-R6 are selected independently from the group consisting of halogen, cyano, nitro, carbonyl, sulfone, ester, alkoxy, alkyl, alkylamino, dialkylamino, arylamino, diarylamino, haloalkyl containing a lower alkyl, hydroxyalkyl containing a lower alkyl, styryl, alkoxyl, alkyloxy, alkylthio, aryloxy, arylthio, siloxy, aryl or substituted aryl, and substituted or unsubstituted heterocyclic hydrocarbons, and R5 and R6 cannot both be hydrogen.
Dependencies are inferred from the claim text.