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公开(公告)号：EP3819354A1
公开(公告)日：2021-05-12
申请号：EP20206222.0
申请日：2020-11-06
发明人： KIM, Taekhoon , WON, Nayoun , KIM, Tae Gon , LIM, Mi Hye , JUN, Shin Ae , PARK, Shang Hyeun
摘要： A quantum dot-polymer composite including a polymer matrix; and core-shell quantum dots dispersed in the polymer matrix, wherein the core-shell quantum dots include a semiconductor nanocrystal core including indium, zinc , and phosphorus and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the shell including zinc, selenium, and sulfur. The core-shell quantum dots do not include cadmium, the core-shell quantum dots are configured to emit green light, the core-shell quantum dots have a mole ratio of phosphorus to indium of greater than or equal to about 0.75, and the core-shell quantum dots have a mole ratio of zinc to indium of greater than or equal to about 35, and a method of producing the core-shell quantum dots, and a display device including a light emitting element that includes the quantum dot-polymer composite.
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公开(公告)号：EP3812444A1
公开(公告)日：2021-04-28
申请号：EP20203824.6
申请日：2020-10-26
发明人： WON, Nayoun , LIM, Mi Hye , KIM, Tae Gon , KIM, Taekhoon , PARK, Shang Hyeun , JUN, Shin Ae
摘要： A cadmium-free, core shell quantum dot, a quantum dot polymer composite, and electronic devices including the quantum dot polymer composite. The core shell quantum dot has an extinction coefficient per gram of greater than or equal to 0.3, an ultraviolet-visible absorption spectrum curve that has a positive differential coefficient value at 450 nm, wherein the core shell quantum dot includes a semiconductor nanocrystal core including indium and phosphorus, and optionally zinc, and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the shell including zinc, selenium, and sulfur, wherein the core shell quantum dot has a quantum efficiency of greater than or equal to about 80%, and is configured to emit green light upon excitation.
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3.发明公开
公开(公告)号：EP4122998A3
公开(公告)日：2023-04-26
申请号：EP22186479.6
申请日：2022-07-22
发明人： KIM, Tae Gon , PARK, Shang Hyeun , JUN, Shin Ae , KIM, Taekhoon , PARK, Garam , WON, Nayoun
摘要： A quantum dot, a quantum dot composite including the quantum dot, a display panel including the quantum dot composite, and an electronic device including the display panel are provided. The quantum dot includes indium, zinc, phosphorus, and selenium, and does not include cadmium, and has an optical density (OD) per 1 mg for a wavelength of 450 nm of from about 0.2 to about 0.3 and an emission peak of from about 500 nm to about 550 nm, or an optical density per 1 mg for a wavelength of about 450 nm of from about 0.5 to about 0.7 and an emission peak of from about 610 nm to about 660 nm.
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4.发明公开
公开(公告)号：EP4122998A2
公开(公告)日：2023-01-25
申请号：EP22186479.6
申请日：2022-07-22
发明人： KIM, Tae Gon , PARK, Shang Hyeun , JUN, Shin Ae , KIM, Taekhoon , PARK, Garam , WON, Nayoun
摘要： A quantum dot, a quantum dot composite including the quantum dot, a display panel including the quantum dot composite, and an electronic device including the display panel are provided. The quantum dot includes indium, zinc, phosphorus, and selenium, and does not include cadmium, and has an optical density (OD) per 1 mg for a wavelength of 450 nm of from about 0.2 to about 0.3 and an emission peak of from about 500 nm to about 550 nm, or an optical density per 1 mg for a wavelength of about 450 nm of from about 0.5 to about 0.7 and an emission peak of from about 610 nm to about 660 nm.
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