| CPC C09K 11/565 (2013.01) [B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); H10K 50/115 (2023.02)] | 23 Claims |
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1. A quantum dot, comprising
a semiconductor nanocrystal core comprising indium and phosphorus,
a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell comprising zinc and selenium, and
a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell comprising zinc and sulfur,
wherein the quantum dot does not comprise cadmium,
wherein the first semiconductor nanocrystal shell comprises a polyvalent metal dopant comprising indium at an interface with the second semiconductor nanocrystal shell, and
wherein in the quantum dot, a mole ratio of
zinc relative to indium is less than or equal to 30:1,
sulfur relative to selenium is less than or equal to 0.9:1, or
a combination thereof.
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