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US 11,905,447 B2Granted
Quantum dot, production method thereof, and electronic device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSungwoo Hwang, Yong Wook Kim, Soo Kyung Kwon, Seon-Yeong Kim, Ji-Yeong Kim
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Abstract
A cadmium free quantum dot including a core that includes a first semiconductor nanocrystal including zinc, tellurium, and selenium, and a semiconductor nanocrystal shell that is disposed on the core and includes a zinc chalcogenide, wherein the quantum dot further includes magnesium and the mole ratio of Te:Se is greater than or equal to about 0.1:1 in the quantum dot; a production method thereof; and an electronic device including the same.
Claims22
A quantum dot comprising:
- zinc,
- selenium, and
- tellurium,
- wherein the quantum dot comprises
- a core comprising a first semiconductor nanocrystal, and
- a semiconductor nanocrystal shell disposed on the core, the semiconductor
- nanocrystal shell comprising a zinc chalcogenide,
- wherein the quantum dot further comprises magnesium,
- wherein in the quantum dot, a mole ratio of tellurium with respect to selenium is greater than or equal to about 0.1:1,
- wherein the quantum dot does not comprise cadmium, and
- wherein in the quantum dot, a mole ratio of magnesium with respect to tellurium is greater than or equal to 1.1:1 and less than or equal to about 10:1.
8 more elements
A quantum dot comprising:
- zinc,
- selenium, and
- tellurium,
- wherein the quantum dot comprises
- a core comprising a first semiconductor nanocrystal, and
- a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell comprising a zinc chalcogenide,
- wherein the quantum dot further comprises magnesium,
- wherein in the quantum dot, a mole ratio of tellurium with respect to selenium is greater than or equal to about 0.1:1, wherein the quantum dot does not comprise cadmium, and
- wherein the quantum dot further comprises an additional metal and the additional metal comprises an alkali metal, aluminum, or a combination thereof.
6 more elements
Dependencies are inferred from the claim text.