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    Luminescent nanostructure, and color conversion panel and electronic device including the same
    3.
    发明授权
    Luminescent nanostructure, and color conversion panel and electronic device including the same 有权

    公开(公告)号：US12195656B2

    公开(公告)日：2025-01-14

    申请号：US17687453

    申请日：2022-03-04

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Tae Gon Kim ,  Hyeyeon Yang ,  A Ra Jo ,  Sue In Chae ,  Sung Jun Park ,  Hyokeun Park ,  Shin Ae Jun

    IPC: C09K11/88 ,  C09D11/037 ,  C09D11/50 ,  C09K11/08 ,  G02F1/1335 ,  B82Y20/00 ,  B82Y40/00

    Abstract: A color conversion panel that includes a color conversion layer including two or more color conversion regions, and optionally, a partition wall defining the regions of the color conversion layer, and a display device including the color conversion panel. The color conversion region includes a first region corresponding to a first pixel, and the first region includes a first composite including a matrix and a plurality of luminescent nanostructures dispersed in the matrix. The luminescent nanostructures include a first semiconductor nanocrystal including a Group III-V compound and a second semiconductor nanocrystal including a zinc chalcogenide. The Group III-V compound includes indium, phosphorus, and optionally, zinc or gallium, or zinc and gallium, and the zinc chalcogenide includes zinc, selenium, and sulfur. The luminescent nanostructures further include aluminum and chlorine, and a mole ratio of aluminum to sulfur (Al:S) is less than about 0.15:1, a mole ratio of chlorine to sulfur (Cl:S) is less than about 0.1:1, and a mole ratio of sulfur to selenium (S:Se) is greater than or equal to about 2:1. The luminescent nanostructures don not include cadmium.

    Cadmium free quantum dots, and composite and display device including the same
    4.
    发明授权
    Cadmium free quantum dots, and composite and display device including the same 有权

    公开(公告)号：US11180695B2

    公开(公告)日：2021-11-23

    申请号：US16914601

    申请日：2020-06-29

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Tae Gon Kim ,  Seonmyeong Choi ,  Shin Ae Jun ,  Hyeyeon Yang

    IPC: C09K11/88 ,  C09K11/08 ,  C09K11/02 ,  C09K11/62 ,  B82Y40/00 ,  B82Y20/00

    Abstract: A quantum dot and a quantum dot-polymer composite and a device including the same, wherein the quantum dot includes a semiconductor nanocrystal core including indium (In), gallium (Ga), and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dot does not include cadmium, wherein the quantum dot emits green light, wherein in the quantum dot, a mole ratio of gallium with respect to a sum of indium and gallium is less than or equal to about 0.5:1, and wherein in the quantum dot, a mole ratio of sulfur with respect to selenium is less than or equal to about 2.5:1.

    Quantum dots, a composition or composite including the same, and an electronic device including the same
    8.
    发明授权
    Quantum dots, a composition or composite including the same, and an electronic device including the same 有权

    公开(公告)号：US11352558B2

    公开(公告)日：2022-06-07

    申请号：US16904664

    申请日：2020-06-18

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Tae Gon Kim ,  Shin Ae Jun ,  Taek hoon Kim ,  Hyeyeon Yang ,  Nayoun Won ,  Jongmin Lee ,  Mi Hye Lim

    IPC: C09K11/70 ,  C08F220/38 ,  C09K11/02 ,  C09K11/88 ,  H01L33/00 ,  H01L33/50 ,  B82Y20/00

    Abstract: A quantum dot, and a composite and a display device including the quantum dot. The quantum dot comprises a semiconductor nanocrystal core comprising indium and phosphorous, a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell comprising zinc, selenium, and sulfur, wherein the quantum dot does not comprise cadmium wherein the quantum dot has a maximum photoluminescence peak in a green light wavelength region, and wherein in an ultraviolet-visible (UV-Vis) absorption spectrum of the quantum dot, a ratio A450/Afirst, of an absorption value at 450 nm to an absorption value at a first excitation peak is greater than or equal to about 0.7, and a valley depth (VD) defined by the following equation is greater than or equal to about 0.4: (Absfirst−Absvalley)/Absfirst=VD wherein, Absfirst is an absorption value at the first absorption peak wavelength and Absvalley is an absorption value at a lowest point of the valley adjacent to the first absorption peak.

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