Nanocrystal particles and processes for synthesizing the same
AssigneeSamsung Electronics Co., Ltd.
InventorsHyunki Kim, Shin Ae Jun, Eun Joo Jang, Yongwook Kim, Tae Gon Kim, Yuho Won, Taekhoon Kim, Hyo Sook Jang
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Abstract
A nanocrystal particle including at least one semiconductor material and at least one halogen element, the nanocrystal particle including: a core comprising a first semiconductor nanocrystal; and a shell surrounding the core and comprising a crystalline or amorphous material, wherein the halogen element is present as being doped therein or as a metal halide.
Claims21
A nanocrystal particle comprising at least one semiconductor material and at least one halogen element,
- wherein the nanocrystal particle has a core-shell structure including a core comprising a first semiconductor nanocrystal;
- and
- a shell surrounding the core and comprising a crystalline semiconductor material, and
- wherein the at least one halogen element is present as being doped therein or as a metal halide,
- wherein the at least one halogen element comprises fluorine,
- wherein the first semiconductor nanocrystal of the core comprises a zinc telluride, a zinc selenide telluride, or a Group III-V compound comprising indium and phosphorus, and
- the crystalline semiconductor material of the shell comprises ZnSe, ZnS, ZnSeS, or a combination thereof,
- wherein the nanocrystal particle has a quantum yield of greater than or equal to about 50%,
- wherein the nanocrystal particle has a full width at half maximum of less than 50 nm, and
- wherein the nanocrystal particle does not include cadmium.
A halogen doped core-shell nanocrystal particle comprising at least one halogen element,
- wherein the core-shell nanocrystal particle comprises a core comprising a first semiconductor nanocrystal;
- and a crystalline semiconductor nanocrystal shell surrounding the core,
- wherein the at least one halogen element comprises fluorine,
- wherein the first semiconductor nanocrystal of the core comprises ZnTeSe, and
- the crystalline semiconductor nanocrystal shell comprises ZnSe, ZnS, ZnSeS, or a combination thereof,
- wherein the halogen doped core-shell nanocrystal particle has a quantum yield of greater than or equal to about 50%,
- wherein the halogen doped core-shell nanocrystal particle has a full width at half maximum of less than 50 nm, and
- wherein the halogen doped core-shell nanocrystal particle does not include cadmium.
A nanocrystal particle, comprising:
- a first semiconductor nanocrystal,
- wherein the first semiconductor nanocrystal comprises an indium phosphide or a zinc selenide telluride,
- wherein the nanocrystal particle further comprises ZnSe(F), ZnS(F), ZnSeS(F), or a combination thereof, and
- wherein the nanocrystal particle has a quantum yield of greater than or equal to about 50%,
- wherein the nanocrystal particle has a full width at half maximum of less than 50 nm, and
- wherein the nanocrystal particle does not include cadmium.
Dependencies are inferred from the claim text.