公开(公告)号：US20200313106A1

公开(公告)日：2020-10-01

申请号：US16832004

申请日：2020-03-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwanghee KIM ,  Dae Young CHUNG ,  Tae Hyung KIM ,  Eun Joo JANG ,  Moon Gyu HAN

IPC: H01L51/50 ,  H01L51/00 ,  H01L51/56

Abstract: An electroluminescent device including a first electrode and a second electrode facing each other, and a quantum dot emission layer disposed between the first electrode and the second electrode and a method of manufacturing the same. The quantum dot emission layer does not include cadmium and lead, the quantum dot emission layer includes a first layer including first quantum dots, facing the first electrode, a second layer including second quantum dots, facing the second electrode, and a third layer including third quantum dots, disposed between the first layer and the second layer, wherein a highest occupied molecular orbital energy level of the third layer is less than a highest occupied molecular orbital energy level of the layer and the highest occupied molecular orbital energy level of the third layer is less than a highest occupied molecular orbital energy level of the second layer.

公开(公告)号：US20200083450A1

公开(公告)日：2020-03-12

申请号：US16562601

申请日：2019-09-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moon Gyu HAN ,  Dae Young CHUNG ,  Kwanghee KIM ,  Eun Joo JANG ,  Chan Su KIM ,  Kun Su PARK ,  Won Sik YOON

IPC: H01L51/00

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including a plurality of quantum dots and a first hole transporting material having a substituted or unsubstituted C4 to C20 alkyl group attached to a backbone structure; a hole transport layer disposed between the emission layer and the first electrode and including a second hole transporting material; and an electron transport layer disposed between the emission layer and the second electrode.

公开(公告)号：US20190319208A1

公开(公告)日：2019-10-17

申请号：US16104967

申请日：2018-08-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moon Gyu HAN ,  Dae Young CHUNG ,  Hongkyu SEO ,  Kwanghee KIM ,  Kun Su PARK ,  Sujin PARK ,  Eun Joo JANG

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00

Abstract: A quantum dot 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 comprising a plurality of quantum dots, a first charge auxiliary layer disposed between the first electrode and the quantum dot layer and contacting the quantum dot layer, and a second charge auxiliary layer disposed between the second electrode and the quantum dot layer and contacting the quantum dot layer, wherein the plurality of quantum dots includes a quantum dot including an organic ligand on a surface thereof, the organic ligand including a hydrophilic functional group at a terminal end.

公开(公告)号：US20170139514A1

公开(公告)日：2017-05-18

申请号：US15351788

申请日：2016-11-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Mi Jeong KIM ,  Chan KWAK ,  Junghwa KIM ,  Dong Su KO ,  Kwanghee KIM ,  Jiye KIM

IPC: G06F3/041 ,  C22F1/14 ,  B32B15/08 ,  B22F1/00 ,  G06F3/045 ,  B32B15/02

CPC classification number: G06F3/0412 ,  B22F1/0025 ,  B22F2301/255 ,  B22F2304/05 ,  B32B15/02 ,  B32B15/08 ,  B32B2307/202 ,  B32B2457/208 ,  C22F1/14 ,  G06F3/045 ,  G06F2203/04102 ,  G06F2203/04103 ,  H01B1/02 ,  H01B1/22

Abstract: An electrical conductor includes a substrate; and a conductive layer disposed on the substrate and including a plurality of silver nanowires, wherein the silver nanowires exhibit a main peak assigned to a (111) crystal plane in an X-ray diffraction spectrum thereof, and a 2θ full width at half maximum (FWHM) of the main peak after Gaussian fitting is less than about 0.40 degrees.

公开(公告)号：US20240224796A1

公开(公告)日：2024-07-04

申请号：US18600030

申请日：2024-03-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moon Gyu HAN ,  Dae Young CHUNG ,  Kwanghee KIM ,  Eun Joo JANG ,  Chan Su KIM ,  Kun Su PARK ,  Won Sik YOON

IPC: H10K85/60 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00 ,  H10K71/12 ,  H10K102/00

CPC classification number: H10K85/633 ,  H10K85/6572 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00 ,  H10K71/12 ,  H10K2102/331 ,  H10K2102/351

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including a plurality of quantum dots and a first hole transporting material having a substituted or unsubstituted C4 to C20 alkyl group attached to a backbone structure; a hole transport layer disposed between the emission layer and the first electrode and including a second hole transporting material; and an electron transport layer disposed between the emission layer and the second electrode.

公开(公告)号：US20240141231A1

公开(公告)日：2024-05-02

申请号：US18535107

申请日：2023-12-11

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

CPC classification number: C09K11/883 ,  C09K11/703 ,  B82Y40/00

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：US20230209848A1

公开(公告)日：2023-06-29

申请号：US18057242

申请日：2022-11-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hong Kyu SEO ,  Kwanghee KIM ,  Kunsu PARK ,  Eun Joo JANG ,  Hyo Sook JANG ,  You Jung CHUNG ,  Soonmin CHA

IPC: H10K50/11 ,  H10K50/16 ,  H10K50/17

CPC classification number: H01L51/5004 ,  H01L51/508 ,  H01L51/5092 ,  H01L2251/303

Abstract: A quantum dot device and an electronic device. The quantum dot device includes a first electrode and an opposite facing second electrode, a light emitting layer disposed between the first electrode and the second electrode and including quantum dots, a first electron auxiliary layer proximate to the light emitting layer and disposed between the second electrode and the light emitting layer and including a first electron auxiliary material, a second electron auxiliary layer proximate to the second electrode and disposed between the second electrode and the light emitting layer and including a second electron auxiliary material, and an insertion layer disposed between the first electron auxiliary layer and the second electron auxiliary layer and including an inorganic material, wherein a HOMO energy level of the inorganic material is deeper than a HOMO energy level of the first electron auxiliary material, and a HOMO energy level of the second electron auxiliary material, respectively.

公开(公告)号：US20230133351A1

公开(公告)日：2023-05-04

申请号：US18050535

申请日：2022-10-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwanghee KIM ,  Hong Kyu SEO ,  Heejae LEE ,  Eun Joo JANG ,  Hyo Sook JANG

IPC: H01L51/50 ,  H01L51/56 ,  C09K11/88 ,  C01G9/00

Abstract: An electroluminescent device including an anode; a cathode; a light emitting layer disposed between the anode and the cathode; and an electron transport layer disposed between the light emitting layer and the cathode, wherein the light emitting layer includes a plurality of semiconductor nanoparticles, the electron transport layer includes zinc oxide nanoparticles including a Group IIA metal and an acid salt of an alkali metal that has an oxycarbonyl moiety, and the zinc oxide nanoparticles have an average size of less than or equal to about 20 nanometers (nm).

公开(公告)号：US20220325179A1

公开(公告)日：2022-10-13

申请号：US17708245

申请日：2022-03-30

Applicant: Samsung Electronics Co., Ltd. ,  The Governing Council of the University of Toronto

Inventor： Eun Joo JANG ,  Seungjin Lee ,  Ted Sargent ,  Kwanghee KIM ,  Yuho WON

IPC: C09K11/88 ,  C01G9/00 ,  C09K11/55 ,  C09K11/70 ,  C01G9/08 ,  C01G15/00

Abstract: A quantum dot device and an electronic device including the device are provided. The quantum dot device includes a first electrode and a second electrode, a quantum dot layer disposed between the first electrode and the second electrode, and a hole auxiliary layer disposed between the quantum dot layer and the first electrode, wherein the hole auxiliary layer includes nickel oxide and a self-assembled monolayer disposed between the hole auxiliary layer and the quantum dot layer, the self-assembled monolayer including an organic compound represented by Chemical Formula 1.

公开(公告)号：US20220169921A1

公开(公告)日：2022-06-02

申请号：US17675459

申请日：2022-02-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Hyung KIM ,  Kwanghee KIM ,  Eun Joo JANG ,  Dae Young CHUNG ,  Sujin PARK

IPC: C09K11/02 ,  C09K11/88 ,  C09K11/56 ,  C09K11/70 ,  H01L33/06

Abstract: Quantum dots including semiconductor nanocrystals, methods of producing the same, and quantum dot solutions and electronic devices including the same. The quantum dots do not include cadmium, lead, or a combination thereof. The quantum dots include an organic ligand and a halogen on the surfaces, and the quantum dots are dispersible in an organic solvent to form organic solutions.