公开(公告)号：US20240014358A1

公开(公告)日：2024-01-11

申请号：US18349485

申请日：2023-07-10

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Hong Kyu SEO ,  Soonmin CHA ,  Dongchan KIM ,  Enjung KIM ,  Taehyung KIM ,  Tae Ho KIM ,  Shin Ae JUN ,  You Jung CHUNG

IPC分类号： H01L33/56 ,  H01L33/06 ,  H01L33/00 ,  H01L33/14

CPC分类号： H01L33/56 ,  H01L33/06 ,  H01L33/005 ,  H01L33/14 ,  H01L2933/0016 ,  H01L2933/005

摘要： An electroluminescent device that includes a first electrode and a second electrode spaced apart from each other, a light emitting layer disposed between the first electrode and the second electrode, an electron transport layer disposed between the light emitting layer and the second electrode, and an organic layer disposed on the electron transport layer. The light emitting layer includes a plurality of semiconductor nanoparticles, the electron transport layer includes a plurality of metal oxide nanoparticles, and the organic layer includes a polymeric acid compound.

公开(公告)号：US20230121042A1

公开(公告)日：2023-04-20

申请号：US17966926

申请日：2022-10-17

申请人： Samsung Electronics Co., Ltd.

发明人： Kwanghee KIM ,  Taehyung KIM ,  Hong Kyu SEO ,  Wonsik YOON ,  Eun Joo JANG

IPC分类号： H01L51/50 ,  H01L51/56

摘要： An electroluminescent device including a first electrode; a second electrode; a light emitting layer disposed between the first electrode and the second electrode; and an electron transport layer disposed between the light emitting layer and the second electrode, wherein the light emitting layer includes semiconductor nanoparticles, wherein the electron transport layer includes a plurality of metal oxide nanoparticles, and wherein the electron transport layer further includes a polycarboxylic acid compound and a halogen.

公开(公告)号：US20240224556A1

公开(公告)日：2024-07-04

申请号：US18399957

申请日：2023-12-29

申请人： SAMSUNG ELECTRONICS CO., LTD

发明人： You Jung CHUNG ,  Sung Woo KIM ,  Dongchan KIM ,  Ilyoung LEE ,  Tae Ho KIM ,  Hong Kyu SEO

IPC分类号： H10K50/11 ,  C09K11/08 ,  H10K50/16 ,  H10K71/12

CPC分类号： H10K50/11 ,  C09K11/0811 ,  H10K50/16 ,  H10K71/12

摘要： A method of producing an electroluminescent device, the method including: disposing a light emitting layer including a semiconductor nanoparticle on a first electrode; applying a composition including a zinc oxide nanoparticle onto the light emitting layer to form an electron transport layer, the zinc oxide nanoparticle including a first metal and an alkali metal; and disposing the second electrode on the electron transport layer to produce the electroluminescent device, wherein a preparation of the zinc oxide nanoparticle includes admixing a first solution including a zinc precursor and a first metal precursor in a solvent with a second base and optionally a first base to prepare the zinc oxide nanoparticle, wherein the first base includes an organic base containing a C1 to C50 organic group, and the second base includes an inorganic base including the alkali metal.

公开(公告)号：US20230209848A1

公开(公告)日：2023-06-29

申请号：US18057242

申请日：2022-11-21

申请人： SAMSUNG ELECTRONICS CO., LTD.

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

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

CPC分类号： H01L51/5004 ,  H01L51/508 ,  H01L51/5092 ,  H01L2251/303

摘要： 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

申请人： Samsung Electronics Co., Ltd.

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

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

摘要： 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).