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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.
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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%.
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公开(公告)号：US20190276738A1
公开(公告)日：2019-09-12
申请号：US16298276
申请日：2019-03-11
发明人： Tae Hyung KIM , Jeong Hee LEE , Sung Woo KIM , Jin A KIM , Yuho WON , Eun Joo JANG
摘要： A quantum dot includes a core including a first semiconductor nanocrystal material including zinc, tellurium, and selenium; and a semiconductor nanocrystal shell disposed on (e.g., directly on) the core and including zinc, selenium, and sulfur, wherein the quantum dot does not include cadmium, wherein a size of the quantum dot is greater than or equal to about 10 nanometers (nm) and the quantum dot includes at least four protrusions. A production method thereof and an electronic device including the same are also disclosed.
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公开(公告)号：US20180327665A1
公开(公告)日：2018-11-15
申请号：US15976197
申请日：2018-05-10
发明人： Jeong Hee LEE , Eun Joo JANG , Hyun A KANG , Tae Hyung KIM
IPC分类号： C09K11/88
CPC分类号： C09K11/883 , C09K11/02 , C09K11/565 , Y10S977/774 , Y10S977/824 , Y10S977/892 , Y10S977/95
摘要： A semiconductor nanocrystal particle including zinc (Zn), tellurium (Te) and selenium (Se), a method of producing the same, and an electronic device including the same are disclosed. In the semiconductor nanocrystal particle, an amount of the tellurium is less than an amount of the selenium, the particle includes a core including a first semiconductor material including zinc, tellurium, and selenium and a shell disposed on at least a portion of the core and including a second semiconductor material having a different composition from the first semiconductor material, and the semiconductor nanocrystal particle emits blue light including a maximum peak emission at a wavelength of less than or equal to about 470 nanometers.
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公开(公告)号：US20170306222A1
公开(公告)日：2017-10-26
申请号：US15644984
申请日：2017-07-10
发明人： Jeong Hee LEE , Hyun A KANG , Eun Joo JANG , Sang Eui LEE , Shin Ae JUN , Oul CHO , Tae Gon KIM , Tae Hyung KIM
CPC分类号： C09K11/025 , B24B1/00 , C01B17/20 , C08L33/04 , C09K11/59 , G02F1/1335 , G02F1/3615
摘要： A method of grinding a semiconductor nanocrystal-polymer composite, the method including obtaining a semiconductor nanocrystal-polymer composite including a semiconductor nanocrystal and a first polymer, contacting the semiconductor nanocrystal-polymer composite with an inert organic solvent; and grinding the semiconductor nanocrystal-polymer composite in the presence of the inert organic solvent to grind the semiconductor nanocrystal-polymer composite.
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6.发明申请公开(公告)号：US20150062967A1
公开(公告)日：2015-03-05
申请号：US14251881
申请日：2014-04-14
发明人： Min Jong BAE , Jeong Hee LEE , Dong Earn KIM , Sang Eui LEE , Na Youn Won , Hyun A KANG , Shin Ae JUN
IPC分类号： F21V8/00
CPC分类号： G02B6/0096 , Y10T29/49826
摘要： A light source unit includes a light guide plate which includes a front surface and a rear surface which are opposite to each other and a side between and connecting the front surface and the rear surface, a light conversion device on the side of the light guide plate; and a light source which generates and supplies light to the light conversion device. The light conversion device includes, a sealed tube, a light conversion member within the sealed tube and a space other than an area in the tube which is occupied by the light conversion member, defined in the tube
摘要翻译： 光源单元包括导光板，该导光板包括彼此相对的前表面和后表面以及连接前表面和后表面之间的一侧，在该导光板侧的光转换装置 ; 以及产生并向光转换装置提供光的光源。 光转换装置包括：密封管，密封管内的光转换构件，以及限定在管中的由光转换构件占据的管中的区域以外的空间
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7.发明申请公开(公告)号：US20150041715A1
公开(公告)日：2015-02-12
申请号：US14453723
申请日：2014-08-07
发明人： Jeong Hee LEE , Hyun A KANG , Eun Joo JANG , Sang Eui LEE , Shin Ae JUN , Oul CHO , Tae Gon KIM , Tae Hyung KIM
CPC分类号： C09K11/025 , B24B1/00 , C09K11/70
摘要： A method of grinding a semiconductor nanocrystal-polymer composite, the method including obtaining a semiconductor nanocrystal-polymer composite including a semiconductor nanocrystal and a first polymer, contacting the semiconductor nanocrystal-polymer composite with an inert organic solvent; and grinding the semiconductor nanocrystal-polymer composite in the presence of the inert organic solvent to grind the semiconductor nanocrystal-polymer composite.
摘要翻译： 一种研磨半导体纳米晶体 - 聚合物复合材料的方法，该方法包括获得包含半导体纳米晶体和第一聚合物的半导体纳米晶体 - 聚合物复合物，使半导体纳米晶体 - 聚合物复合材料与惰性有机溶剂接触; 并在惰性有机溶剂存在下研磨半导体纳米晶体 - 聚合物复合物，研磨半导体纳米晶体 - 聚合物复合材料。
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8.发明申请公开(公告)号：US20230093467A1
公开(公告)日：2023-03-23
申请号：US18052597
申请日：2022-11-04
发明人： Jin A KIM , Yuho WON , Sung Woo KIM , Tae Hyung KIM , Jeong Hee LEE , Eun Joo JANG
IPC分类号： C30B29/48 , C01G9/08 , C09K11/02 , C09K11/56 , C09K11/88 , H01L33/06 , H01L51/50 , H01L33/28
摘要： A semiconductor nanocrystal particle, a production method thereof, and a light emitting device including the same. The semiconductor nanocrystal particle includes a core including a first semiconductor nanocrystal, a first shell surrounding the core, the first shell including a second semiconductor nanocrystal including a different composition from the first semiconductor nanocrystal, a second shell surrounding the first shell, the second shell including a third semiconductor nanocrystal including a different composition from the second semiconductor nanocrystal, wherein the first semiconductor nanocrystal includes zinc and sulfur; wherein the third semiconductor nanocrystal includes zinc and sulfur; wherein an energy bandgap of the second semiconductor nanocrystal is less than an energy bandgap of the first semiconductor nanocrystal and less than an energy bandgap of the third semiconductor nanocrystal; and wherein the semiconductor nanocrystal particle does not include cadmium.
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9.发明申请公开(公告)号：US20200248073A1
公开(公告)日：2020-08-06
申请号：US16851625
申请日：2020-04-17
发明人： Jeong Hee LEE , Hyun A KANG , Sung Woo KIM , Jin A KIM , Tae Hyung KIM , Yuho WON , Eun Joo JANG
摘要： A method of producing a quantum dot comprising zinc selenide, the method comprising: providing an organic ligand mixture comprising a carboxylic acid compound, a primary amine compound, a secondary amide compound represented by Chemical Formula 1, and a first organic solvent: RCONHR Chemical Formula 1 wherein each R is as defined herein; heating the organic ligand mixture in an inert atmosphere at a first temperature to obtain a heated organic ligand mixture; adding a zinc precursor, a selenium precursor, and optionally a tellurium precursor to the heated organic ligand mixture to obtain a reaction mixture, wherein the zinc precursor does not comprise oxygen; and heating the reaction mixture at a first reaction temperature to synthesize a first semiconductor nanocrystal particle.
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10.发明申请公开(公告)号：US20190288229A1
公开(公告)日：2019-09-19
申请号：US16351654
申请日：2019-03-13
发明人： Sung Woo KIM , Chan Su KIM , Tae Ho KIM , Kun Su PARK , Eun Joo JANG , Jin A KIM , Tae Hyung KIM , Jeong Hee LEE
摘要： An electroluminescent device, a method of manufacturing the same, and a display device including the same. The 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, the emission layer including light emitting particles; an electron transport layer disposed between the first electrode and the emission layer; and a hole transport layer disposed between the second electrode and the emission layer, wherein the electron transport layer includes inorganic oxide particles and a metal-organic compound, the metal-organic compound or a thermal decomposition product of the metal-organic compound being soluble a non-polar solvent.
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