公开(公告)号：US20210395611A1

公开(公告)日：2021-12-23

申请号：US17308344

申请日：2021-05-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwanghee KIM ,  Tae Hyung KIM ,  Hongkyu SEO ,  Won Sik YOON ,  Jaeyong LEE ,  Eun Joo JANG ,  Oul CHO

IPC: C09K11/88 ,  C09K11/70

Abstract: A semiconductor nanocrystal including an anion of an inorganic metal salt and a first organic ligand bound to a surface of the semiconductor nanocrystal, wherein the first organic ligand includes a substituted or unsubstituted C6 to C30 aromatic ring group and a carboxylate, a substituted or unsubstituted C3 to C30 aromatic hetero cyclic group and a carboxylate, or a combination thereof.

公开(公告)号：US20250040296A1

公开(公告)日：2025-01-30

申请号：US18783623

申请日：2024-07-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ji Hyun MIN ,  DAEUN YOON ,  Won Sik YOON ,  Jae Yong LEE ,  Hogeun CHANG ,  Hyundong HA ,  Yong Seok HAN

IPC: H01L33/06 ,  H01L25/075 ,  H01L33/00 ,  H01L33/28 ,  H01L33/30

Abstract: A semiconductor nanoparticle, a method of preparing the semiconductor nanoparticle, and an electroluminescent device including the semiconductor nanoparticle. The method of preparing the semiconductor nanoparticle includes contacting a zinc precursor and a sulfur precursor in the presence of a first particle at a predetermined temperature to form a semiconductor nanocrystal layer containing zinc sulfide on the first particle, wherein the first particle includes a Group II-VI compound including zinc, selenium, and, optionally, tellurium, or the first particle includes a Group III-V compound including indium and phosphorus. The predetermined temperature includes (e.g., is) a temperature (e.g., a reaction temperature) of greater than 300° C. and less than or equal to about 380° C., and the sulfur precursor includes a thiol compound of C3 (e.g. C9) to C50 or a combination thereof.

公开(公告)号：US20240224564A1

公开(公告)日：2024-07-04

申请号：US18512352

申请日：2023-11-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Won Sik YOON ,  Ju Hyun KIM ,  Ha Il KWON ,  Kwang Hee KIM ,  Taehyung KIM ,  Su Jin PARK ,  Dae Young CHUNG

IPC: H10K50/115 ,  H10K50/15 ,  H10K50/16

CPC classification number: H10K50/115 ,  H10K50/156 ,  H10K50/16

Abstract: A quantum dot device including an anode and a cathode, a light emitting layer disposed between the anode and the cathode, the light emitting layer comprising quantum dots, a first hole auxiliary layer disposed on the anode, the first hole auxiliary layer including poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate or a derivative thereof (PEDOT:PSS), a second hole auxiliary layer disposed on the first hole auxiliary layer and including a hole transport material different from the PEDOT:PSS, wherein the light emitting layer is disposed on the second hole auxiliary layer, wherein the first hole auxiliary layer has a first surface facing the anode and a second surface facing the second hole auxiliary layer, and the second surface includes a surface modification region including a surface modification material having a carboxylic acid group, a phosphonic acid group, a sulfonic acid group, or a salt thereof. An electronic device that includes the quantum dot device.

公开(公告)号：US20240065018A1

公开(公告)日：2024-02-22

申请号：US18498727

申请日：2023-10-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongkyu SEO ,  Kwanghee KIM ,  Eun Joo JANG ,  Won Sik YOON ,  Tae Hyung KIM ,  Tae Ho KIM

IPC: H10K50/16 ,  H10K71/00 ,  H10K85/60

CPC classification number: H10K50/16 ,  H10K71/00 ,  H10K85/60 ,  H10K50/115

Abstract: Light emitting device, method of manufacturing the light emitting device, and display device including the light emitting device are disclosed. The light emitting device includes a first electrode and a second electrode each having a surface opposite the other, a light emitting layer including quantum dots that is disposed between the first electrode and the second electrode, and an electron auxiliary layer disposed between the light emitting layer and the second electrode, wherein the electron auxiliary layer includes metal oxide nanoparticles including an anion of an organic acid bound to a surface of the metal oxide nanoparticle.

公开(公告)号：US20230043694A1

公开(公告)日：2023-02-09

申请号：US17944394

申请日：2022-09-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Ho KIM ,  Won Sik YOON ,  Jeong Hee LEE ,  Eun Joo JANG ,  Oul CHO

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56

Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.

公开(公告)号：US20210257551A1

公开(公告)日：2021-08-19

申请号：US17171008

申请日：2021-02-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Won Sik YOON ,  Moon Gyu HAN ,  Kwanghee KIM ,  Heejae LEE ,  Eun Joo JANG ,  Tae Hyung KIM ,  Hyo Sook JANG

IPC: H01L51/00

Abstract: A quantum dot device including a first electrode and a second electrode each having a surface opposite the other, a quantum dot layer disposed between the first electrode and the second electrode, an electron transport layer disposed between the quantum dot layer and the second electrode and including first inorganic nanoparticles and a first organic material, and an electron injection layer disposed between the electron transport layer and the second electrode and including second inorganic nanoparticles and a second organic material, wherein a ratio by weight of an amount of the second organic material to a total amount of the second inorganic nanoparticles and the second organic material in the electron injection layer is less than a ratio by weight of an amount of the first organic material to a total amount of the first inorganic nanoparticles and the first organic material in the electron transport layer. An electronic device including the quantum dot device.

公开(公告)号：US20200161551A1

公开(公告)日：2020-05-21

申请号：US16372861

申请日：2019-04-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Won Sik YOON ,  Moon Gyu HAN ,  Tae Ho KIM ,  Eun Joo JANG ,  Hongkyu SEO

IPC: H01L51/00

Abstract: An electroluminescent device and including a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a quantum dot and a first electron transporting material represented by Chemical Formula 1; a hole transport layer disposed between the emission layer and the first electrode; and an electron transport layer disposed between the emission layer and the second electrode: wherein, the definitions of groups and variables in Chemical Formula 1 are the same as described in the specification.

公开(公告)号：US20200067005A1

公开(公告)日：2020-02-27

申请号：US16233567

申请日：2018-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kun Su PARK ,  Kwanghee KIM ,  Tae Ho KIM ,  Eun Joo JANG ,  Won Sik YOON

IPC: H01L51/50 ,  H01L51/00

Abstract: An electroluminescent device, a method of manufacturing the same, and a display device including the same.The electroluminescent device includes a first electrode, a hole transport layer disposed on the first electrode, an emission layer disposed on the hole transport layer and including light emitting particles, an electron transport layer disposed on the emission layer and including nanoparticles having electron transport capability, and a second electrode disposed on the electron transport layer, wherein at least a portion of the nanoparticles having electron transport capability include an inorganic oxide core represented by Chemical Formula 1, an organic ligand attached to a surface of the inorganic oxide core, and a metal-organic compound chemically bound to the surface of the inorganic oxide core. MxOy   Chemical Formula 1

公开(公告)号：US20240164129A1

公开(公告)日：2024-05-16

申请号：US18508605

申请日：2023-11-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwang Hee KIM ,  Yuho WON ,  Jae Yong LEE ,  Oul CHO ,  Ha Il KWON ,  Ju Hyun KIM ,  Won Sik YOON ,  Taehyung KIM

IPC: H10K50/115 ,  C09K11/02 ,  C09K11/88

CPC classification number: H10K50/115 ,  C09K11/02 ,  C09K11/883 ,  H10K2101/30

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; a quantum dot layer disposed between the first electrode and the second electrode and including a plurality of quantum dots; optionally, an electron transport layer between the quantum dot layer and the second electrode; wherein the quantum dot layer is configured to emit first light. The electroluminescent device further includes a first layer including an inorganic nanoparticle between the quantum dot layer and the first electrode, and inorganic nanoparticle includes a metal chalcogenide including a Group II metal and a chalcogen element. The inorganic nanoparticle has a size of greater than or equal to about 0.5 nanometers and less than or equal to about 30 nanometers.

公开(公告)号：US20230096217A1

公开(公告)日：2023-03-30

申请号：US17893254

申请日：2022-08-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Won Sik YOON ,  Kwanghee KIM ,  Tae Hyung KIM ,  Eun Joo JANG ,  Enjung KIM ,  Dae-Hee LEE

IPC: H01L51/00 ,  C09K11/06 ,  C09K11/70

Abstract: An electroluminescent device including a first electrode, a second electrode, and a light emitting layer disposed between the first electrode and the second electrode, the light emitting layer including semiconductor nanoparticle(s), wherein the semiconductor nanoparticle(s) does not include cadmium, wherein the semiconductor nanoparticle(s) includes a polycyclic organic ligand including functional group linked to a C6-50 condensed aromatic group, the functional group configured to link to the semiconductor nanoparticle(s), and the C6-50 condensed aromatic group including at least three cyclic moieties that includes a first aromatic ring and a second aromatic ring, and the first aromatic ring shares two carbon atoms with a first adjacent cyclic moiety and the second aromatic ring shares two carbon atoms with the first adjacent cyclic moiety, or the second aromatic ring shares two carbon atoms with a second adjacent cyclic moiety condensed with the first adjacent cyclic moiety.