-
公开(公告)号：US20230287231A1
公开(公告)日：2023-09-14
申请号：US18180419
申请日：2023-03-08
发明人： Hiroko ENDO , Keigo FURUTA , Takao MOTOYAMA , Yukika YAMADA , Tomoyuki KIKUCHI , Eun Joo JANG , Hyo Sook JANG , Jun-Mo YOO , Tae Ho KIM , Yuho WON
IPC分类号： C09D11/50 , C09D11/037 , C09D11/033 , C09D11/322 , C09D11/36 , C09K11/02 , C09K11/88 , C09K11/08 , H10K50/115 , H10K71/13
CPC分类号： C09D11/50 , C09D11/037 , C09D11/033 , C09D11/322 , C09D11/36 , C09K11/025 , C09K11/883 , C09K11/0883 , H10K50/115 , H10K71/135 , B82Y20/00
摘要： A quantum dot ink composition including a plurality of quantum dots, and a mixed solvent including a Solvent a and a Solvent b, a quantum dot electroluminescent device including a light emitting layer formed from the quantum dot composition, and a method of making the quantum dot electroluminescent device are provided, where Solvent a is a cycloalkane compound with at least one ring carbon having a linear C4 to C16 alkyl group, an aromatic hydrocarbon compound having a linear C2 to C12 alkyl group, or a combination thereof, and Solvent b is a fluorinated alcohol.
-
22.发明公开公开(公告)号：US20230250336A1
公开(公告)日：2023-08-10
申请号：US18297033
申请日：2023-04-07
发明人： Yong Wook KIM , Eun Joo JANG , Hyo Sook JANG , Soo Kyung KWON , Seon-Yeong KIM , Ji-Yeong KIM
IPC分类号： C09K11/88 , C09K11/02 , F21V8/00 , G02F1/13357 , C09K11/08 , C09K11/56 , H10K59/12 , H10K59/38
CPC分类号： C09K11/883 , C09K11/025 , G02B6/005 , G02F1/133617 , C09K11/88 , C09K11/0805 , C09K11/562 , H10K59/12 , H10K59/38 , B82Y20/00
摘要： A cadmium free quantum dot includes zinc, tellurium, and selenium, and lithium. A full width at half maximum of a maximum luminescent peak of the cadmium free quantum dot is less than or equal to about 50 nanometers and the cadmium free quantum dot has a quantum efficiency of greater than 1%.
-
23.发明公开公开(公告)号：US20230235220A1
公开(公告)日：2023-07-27
申请号：US18159871
申请日：2023-01-26
发明人： Jihyun MIN , Eun Joo JANG , Hyo Sook JANG , Yong Seok HAN , Ilyoung LEE , Oul CHO
IPC分类号： C09K11/70 , H10K50/115
CPC分类号： C09K11/70 , H10K50/115
摘要： 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 a plurality of semiconductor nanoparticles, wherein the light-emitting layer is configured to emit green light, wherein the plurality of semiconductor nanoparticles include a first semiconductor nanocrystal including indium, phosphorus, and optionally zinc, and a second semiconductor nanocrystal including a zinc chalcogenide, wherein the zinc chalcogenide includes zinc, selenium, and sulfur, wherein in the plurality of the semiconductor nanoparticles, a mole ratio of zinc to indium is greater than or equal to about 60:1, and
wherein the electroluminescent device is configured to exhibit a T90 of greater than or equal to about 120 hours as measured with an initial driving luminance of about 2700 nit.-
24.发明申请公开(公告)号：US20230114604A1
公开(公告)日：2023-04-13
申请号：US18065910
申请日：2022-12-14
发明人： Yong Seok HAN , Sung Woo KIM , Jin A KIM , Tae Hyung KIM , Kun Su PARK , Yuho WON , Jeong Hee LEE , Eun Joo JANG , Hyo Sook JANG
摘要： A quantum dot including a core that includes a first semiconductor nanocrystal including zinc and selenium, and optionally sulfur and/or tellurium, and a shell that includes a second semiconductor nanocrystal including zinc, and at least one of sulfur or selenium is disclosed. The quantum dot has an average particle diameter of greater than or equal to about 13 nm, an emission peak wavelength in a range of about 440 nm to about 470 nm, and a full width at half maximum (FWHM) of an emission wavelength of less than about 25 nm. A method for preparing the quantum dot, a quantum dot-polymer composite including the quantum dot, and an electronic device including the quantum dot is also disclosed.
-
公开(公告)号：US20230086635A1
公开(公告)日：2023-03-23
申请号：US18059075
申请日：2022-11-28
发明人： Garam PARK , Eun Joo JANG , Yongwook KIM , Jihyun MIN , Hyo Sook JANG , Shin Ae JUN , Taekhoon KIM , Yuho WON
摘要： A semiconductor nanocrystal particle including: a core including a first semiconductor material; and a shell disposed on the core, wherein the shell includes a second semiconductor material, wherein the shell is free of cadmium, wherein the shell has at least two branches and at least one valley portion connecting the at least two branches, and wherein the first semiconductor material is different from the second semiconductor material.
-
公开(公告)号：US20230079704A1
公开(公告)日：2023-03-16
申请号：US17897609
申请日：2022-08-29
发明人： Sung Woo KIM , Yuho WON , Eun Joo JANG , Hyo Sook JANG
摘要： A semiconductor nanoparticle, a production method thereof, and an electroluminescent device including the same. The production method includes: combining a magnesium precursor and an additive with a chalcogen precursor in a reaction medium including an organic solvent and an organic ligand; heating the reaction medium to a reaction temperature; and reacting the magnesium precursor and the chalcogen precursor in the presence of the additive to form a magnesium chalcogenide, wherein the semiconductor nanoparticle comprises the magnesium chalcogenide, wherein the magnesium chalcogenide comprises magnesium; and selenium, sulfur, or a combination thereof, and wherein the additive includes a hydride compound including an alkali metal, calcium, barium, aluminum, or a combination thereof.
-
公开(公告)号：US20230074734A1
公开(公告)日：2023-03-09
申请号：US17895253
申请日：2022-08-25
发明人： Yuho WON , Sung Woo KIM , Eun Joo JANG , Hyo Sook JANG
摘要： An electroluminescent device includes a first electrode; a second electrode spaced apart from the first electrode; and a light emitting layer disposed between the first electrode and the second electrode, the light emitting layer includes semiconductor nanoparticles, wherein the semiconductor nanoparticles do not include cadmium, the semiconductor nanoparticles have a core shell structure, the semiconductor nanoparticles include zinc, selenium, tellurium, and sulfur, wherein in a two dimensional image obtained by an electron microscopy analysis, the semiconductor nanoparticles show an average value of a circularity defined by the following equation of greater than or equal to about 0.8 and less than or equal to about 1: circularity = 4 π × Area [ Perimeter ] 2 wherein Area is an area of a two dimensional image of an individual semiconductor nanoparticle, and Perimeter is a circumference of the two dimensional image of the individual semiconductor nanoparticle.
-
公开(公告)号：US20220204844A1
公开(公告)日：2022-06-30
申请号：US17558774
申请日：2021-12-22
发明人： Yuho WON , Hwea Yoon KIM , Jeong Hee LEE , Eun Joo JANG , Hyo Sook JANG
摘要： A quantum dot including zinc, tellurium, selenium, and sulfur, wherein the quantum dot comprises a core and a shell disposed on the core, and wherein the quantum dot is a cadmium-free red light-emitting quantum dot and has an emission peak wavelength of greater than or equal to about 600 nanometers (nm), and efficiency of greater than or equal to about 50%.
-
公开(公告)号：US20220137286A1
公开(公告)日：2022-05-05
申请号：US17576895
申请日：2022-01-14
发明人： Tae Hyung KIM , Eun Joo JANG , Shin Ae JUN , Hyun A KANG , Yongwook KIM , Na Youn WON , Hyo Sook JANG
IPC分类号： F21V8/00 , G02F1/13357 , G02F1/1335
摘要： A light source includes a light emitting element which emits light, and a light conversion layer which converts the light emitted from the light emitting element into white light and emits the white light, where the light conversion layer includes a resin and a quantum dot material mixed with the resin, and a red apex of a color region of the white light is positioned in a region of 0.65
-
公开(公告)号：US20220017818A1
公开(公告)日：2022-01-20
申请号：US17490552
申请日：2021-09-30
发明人： Yuho WON , Nayoun WON , Sungwoo HWANG , Eun Joo JANG , Soo Kyung KWON , Yong Wook KIM , Jihyun MIN , Garam PARK , Shang Hyeun PARK , Hyo Sook JANG , Shin Ae JUN , Yong Seok HAN
IPC分类号： C09K11/08 , C08L57/10 , G02F1/13357 , H01L51/50 , H01L27/32 , C09K11/02 , C09K11/56 , C09K11/70 , C09K11/88 , H05B33/14
摘要： A cadmium free quantum dot not including cadmium and including: a semiconductor nanocrystal core comprising indium and phosphorous, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core and comprising zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell and comprising zinc and sulfur, a composition and composite including the same, and an electronic device.
-
-
-
-
-
-
-
-
-
搜索结果
91 条记录 (耗时 0.047 秒)
