| CPC C09K 11/883 (2013.01) [C09K 11/565 (2013.01); H10K 50/115 (2023.02)] | 19 Claims |
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1. An electroluminescent device, comprising:
an anode;
a cathode; and
a quantum dot emission layer comprising a quantum dot,
wherein the quantum dot comprises a core comprising a first semiconductor nanocrystal comprising zinc and selenium; and
a shell comprising a second semiconductor nanocrystal having a different composition from the first semiconductor nanocrystal, and wherein the second semiconductor nanocrystal comprises zinc; and at least one of sulfur and selenium, wherein the shell is disposed on the core,
wherein the quantum dot is configured to emit blue light with a maximum emission peak wavelength of greater than or equal to 450 nanometers and less than or equal to 470 nanometers,
wherein the quantum dot is configured to exhibit a quantum efficiency of greater than 80%, and
wherein the quantum dot does not comprise cadmium.
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