Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Samsung Sdi Co., Inc.

Nayoun Won

Shin Ae Jun

Shang Hyeun Park

Tae Gon Kim

Eun Joo Jang

Jooyeon Ahn

Mi Hye Lim

Garam Park

Taekhoon Kim

Hyun A Kang

Ha Il Kwon

Hyo Sook Jang

Yuho Won

Soo Kyung Kwon

Yong Seok Han

Oul Cho

Hyeyeon Yang

Yong Wook Kim

Sungwoo Hwang

Jongmin Lee

Deukseok Chung

Jihyun Min

Ji-Yeong Kim

Jeong Hee Lee

Seon-Yeong Kim

Jonggi Kim

Hojeong Paek

Taek Hoon Kim

Tae Won Jeong

Tomoyuki Kikuchi

Eunjoo Jang

Sung Jun Park

Tae Hyung Kim

Sung Woo Kim

Minho Kim

Yongwook Kim

A Ra Jo

Tae-Gon Kim

Junghwa Kim

Sung Hun Lee

Deuk Kyu Moon

Young Seok Park

Dongjin Yun

Haeng Deog Koh

Byoung Ki Choi

Hyeonsu Heo

Yebin Jung

Jiho You

Seungrim Yang

Young Mo Sung

Ha Ll Kwon

A color conversion panel includes a color conversion layer including a color conversion region, and optionally, a partition wall defining the region of the color conversion layer. The color conversion region includes a first region corresponding to a green pixel, and the first region includes a first composite that is configured to emit a green light and includes a matrix and a plurality of luminescent nanostructures dispersed in the matrix. The luminescent nanostructures include a first semiconductor nanocrystal including a Group III-V compound and a second semiconductor nanocrystal including a zinc chalcogenide, the Group III-V compound includes indium, phosphorus, and optionally zinc, and the zinc chalcogenide includes zinc, selenium, and sulfur. The luminescent nanostructures do not include cadmium. and at least a portion of surfaces of the luminescent nanostructures includes the second semiconductor nanocrystal. The emitted green light has a full width at half maximum of a maximum luminescent peak of less than or equal to about 42 nm.

Luminescent nanostrucure, and color conversion panel and electronic device including the same

A display panel and an electronic device including the display panel are provided, where the display panel includes a quantum dot composite including a matrix and a plurality of quantum dots and titanium dioxide (TiO) particles dispersed in the matrix, the plurality of quantum dots include silver and gallium, exhibit an emission peak wavelength of from about 500 nm to about 550 nm, and a full width at half maximum of the emission peak is greater than or equal to about 10 nm and less than or equal to about 50 nm, and where the quantum dot composite has a mole ratio of silver to titanium of greater than or equal to about 0.4:1 and less than or equal to about 15:1, and a mole ratio of gallium to titanium of greater than or equal to about 0.4:1 and less than or equal to about 20:1.

Display panel, and electronic device including same

A display panel including a light emitting panel; and a color conversion panel with a surface opposite a surface of the light emitting panel. The light emitting panel is configured to emit incident light including a first light and a second light. The color conversion panel includes a color conversion layer including two or more color conversion regions, a color conversion region includes a first region corresponding to the green pixel, the first region includes a matrix and a first composite dispersed within the matrix and including a plurality of luminescent nanostructures, and the spectral overlap between a UV-Vis absorption spectrum of the luminescent nanostructures, the maximum emission peak of the first light, and the maximum emission peak of the second light satisfies the following equation:≤about 0.6

Display panel and electronic device including the same

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.

Core shell quantum dot and electronic device including the same

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.

Quantum dots and composite and display device including the same

Disclosed are a quantum dot and a quantum dot-polymer composite and a device including the same, wherein the quantum dot includes a semiconductor nanocrystal core including indium (In) and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dot does not include cadmium, wherein in the quantum dot, a mole ratio of sulfur with respect to selenium is less than or equal to about 2.5:1.

Quantum dots, a composition or composite including the same, and an electronic device including the same

A photosensitive composition including: a plurality of quantum dots, wherein the quantum dot includes an organic ligand bound to a surface of the quantum dot; a photoinitiator; a binder including a carboxylic acid group; a photopolymerizable monomer having a carbon-carbon double bond; and a solvent, wherein the photoinitiator includes a first photoinitiator including an oxime compound and a second photoinitiator including at least one selected from a phosphine oxide compound and an amino ketone compound.

Photosensitive compositions, preparation methods thereof, and quantum dot polymer composite pattern produced therefrom

A barrier film comprising: a substrate; a first layer disposed on the substrate and comprising an oxidation product of polysilazane; and a second layer disposed directly on the first layer and comprising a thiol-ene polymer, wherein the polysilazane comprises a repeating unit represented by Chemical Formula 1,

Barrier films and quantum dot polymer composite articles including the same

A quantum dot including a semiconductor nanocrystal core including Group III-V compound, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, and a composite/electronic device. The quantum dot does not include cadmium and the first semiconductor nanocrystal shell includes a polyvalent metal dopant at an interface with the second semiconductor nanocrystal shell.

Quantum dots and electronic device including the same

A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.

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.

Cadmium free quantum dots

A cadmium-free quantum dot, a quantum dot-polymer composite including the cadmium-free quantum dot, a display device including the quantum dot-polymer composite, and an electroluminescent device including the cadmium-free quantum dot are disclosed, wherein the cadmium-free quantum dot includes a core including a first semiconductor nanocrystal including indium and phosphorus; a light emitting layer surrounding the core and including a second semiconductor nanocrystal including indium and phosphorus; a first shell disposed between the core and the light emitting layer and including a semiconductor nanocrystal including zinc, and selenium, sulfur, or a combination thereof; and a second shell disposed on the light emitting layer and including a semiconductor nanocrystal including zinc, and selenium, sulfur, or a combination thereof, and wherein the quantum is a single light emitting quantum dot having an emission peak wavelength in a range of about 500 nanometers (nm) to about 550 nm.

Cadmium-free quantum dot, quantum dot-polymer composite, and electronic device including the same

Quantum dots and a composite and a display device including the quantum dots. The quantum dots comprise a semiconductor nanocrystal core comprising indium and phosphorous, and optionally zinc, a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell comprising zinc, selenium, and sulfur, wherein the quantum dots are configured to exhibit a maximum photoluminescence peak in a green light wavelength region, and in an ultraviolet-visible (UV-Vis) absorption spectrum of the quantum dots, a ratio A/A, of an absorption value at 450 nm to an absorption value at a first excitation peak is greater than or equal to about 0.7, and a valley depth (VD) defined by the following equation is greater than or equal to about 0.4:(Abs&#x2212;Abs)/Abs=VD

Growing community of inventors

Suwon-si, South Korea

Nayoun Won