Light-emitting device including quantum dots

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United States of America Patent

PATENT NO 9793505
SERIAL NO

12896856

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Abstract

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A light emitting device including an emissive material comprising quantum dots is disclosed. In one embodiment, the device includes a cathode, a layer comprising a material capable of transporting and injection electrons comprising an inorganic material, an emissive layer comprising quantum dots, a layer comprising a material capable of transporting holes, a layer comprising a hole injection material, and an anode. In certain embodiments, the hole injection material can be a p-type doped hole transport material. In certain preferred embodiments, quantum dots comprise semiconductor nanocrystals. In another aspect of the invention, there is provided a light emitting device wherein the device has an initial turn-on voltage that is not greater than 1240/λ, wherein λ represents the wavelength (nm) of light emitted by the emissive layer. Other light emitting devices and a method are disclosed.

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Patent Owner(s)

  • SAMSUNG RESEARCH AMERICA, INC.;QD VISION, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kazlas, Peter T Sudbury, US 78 7600
Misic, Mead Medford, US 4 140
Morris, John Spencer Dodge City, US 5 121
Popovic, Zoran Mississauga, CA 12 254
Zhou, Zhaoqun Allston, US 17 189

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