-
公开(公告)号：US20240215283A1
公开(公告)日：2024-06-27
申请号：US18419638
申请日：2024-01-23
发明人： Moon Gyu HAN , Heejae LEE , Eun Joo JANG , Tae Ho KIM , Kun Su PARK , Won Sik YOON , Hyo Sook JANG
IPC分类号： H10K50/115 , H10K50/11 , H10K50/16 , H10K71/00 , H10K71/12 , H10K101/30 , H10K101/40
CPC分类号： H10K50/115 , H10K50/11 , H10K50/166 , H10K71/00 , H10K71/12 , H10K2101/30 , H10K2101/40
摘要： A quantum dot light-emitting device including first electrode and a second electrode, a quantum dot layer between the first electrode and the second electrode, a first electron transport layer and a second electron layer disposed between the quantum dot layer and the second electrode. The second electron transport layer is disposed between the quantum dot layer and the first electron transport layer, wherein each of the first electron transport layer and the second electron transport layer includes an inorganic material. A lowest unoccupied molecular orbital energy level of the second electron transport layer is shallower than a lowest unoccupied molecular orbital energy level of the first electron transport layer, and a lowest unoccupied molecular orbital energy level of the quantum dot layer is shallower than a lowest unoccupied molecular orbital energy level of the second electron transport layer. An electronic device including the quantum dot light-emitting device.
-
公开(公告)号：US20230374378A1
公开(公告)日：2023-11-23
申请号：US18224167
申请日：2023-07-20
发明人： Jihyun MIN , Eun Joo JANG , Yong Wook KIM
CPC分类号： C09K11/883 , C01G9/006 , C01G15/00 , C09K11/565 , C09K11/621 , C09K11/703 , C09K11/025 , B82Y20/00
摘要： A quantum dot, a quantum dot-polymer composite, and an electronic device including the same. The quantum dot includes a core including a first semiconductor nanocrystal; a first shell including a second semiconductor nanocrystal including a Group III-VI compound on the core; and a second shell including a third semiconductor nanocrystal having a composition different from that of the second semiconductor nanocrystal on the first shell; wherein one of the first semiconductor nanocrystal and the third semiconductor nanocrystal includes a Group III-V compound.
-
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.
-
4.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%.
-
5.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.-
6.发明公开公开(公告)号：US20230209995A1
公开(公告)日：2023-06-29
申请号：US18146503
申请日：2022-12-27
发明人： Moon Gyu HAN , Heejae LEE , Eun Joo JANG
CPC分类号： H01L51/005 , C09K11/883 , C09K19/12 , H01L2251/5369
摘要： An electroluminescent device including an anode, a cathode, and a light emitting layer disposed between the anode and the cathode, the light emitting layer includes a plurality of semiconductor nanoparticles; and an electron transport layer disposed between the light emitting layer and the cathode. The electron transport layer includes zinc oxide nanoparticles and an organic liquid crystal compound. A production method to the electroluminescent device or a display device is also disclosed.
-
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.
-
-
-
-
-
-
-
-
-
搜索结果
269 条记录 (耗时 0.033 秒)
