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US 2012/0068166 A1Published application
Aromatic chalcogen compounds and their use
AssigneeE. I. Du Pont de Nemours and Company
InventorsNORA SABINA RADU, Steven W. Shuey, Ying Wang
Life of this patent
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Abstract
This invention relates to dibenzothiopyran compounds. This invention also relates to layers and devices including at least one of these compounds.
Claims7
1-6. (canceled)
A device comprising an anode, a cathode, and an active layer interposed between the anode and cathode, and further comprising a charge transport compound that comprises at least one dibenzothiophene substructure (SS-3):
- in a layer selected from the active layer, a charge transport layer interposed between the active layer and the cathode, and combinations thereof.
A device according to claim 27, wherein none of Rg, Rj, Rk, Rk, Rl, and Rm comprises a dibenzo[O,S]furpyran substructure.
Dependencies are inferred from the claim text.