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

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United States of America Patent

PATENT NO 11781063
APP PUB NO 20220243125A1
SERIAL NO

17726702

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Abstract

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A cadmium free quantum dot including a semiconductor nanocrystal core and a semiconductor nanocrystal shell disposed on the core, wherein the quantum dot does not include cadmium and includes indium and zinc, the quantum dot has a maximum photoluminescence peak in a red light wavelength region, a full width at half maximum (FWHM) of the maximum photoluminescence peak is less than or equal to about 40 nanometers (nm), an ultraviolet-visible (UV-Vis) absorption spectrum of the quantum dot includes a valley between about 450 nm to a center wavelength of a first absorption peak, and a valley depth (VD) defined by the following equation is greater than or equal to about 0.2, a quantum dot polymer composite including the same, and a display device including the quantum dot-polymer composite:

description='In-line Formulae' end='lead'(Absfirst−Absvalley)/Absfirst=VD.description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
SAMSUNG ELECTRONICS CO LTDGYEONGGI DO SOUTH KOREA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hwang, Sungwoo Suwon-si, KR 56 328
Jang, Eun Joo Suwon-si, KR 360 2938
Jang, Hyo Sook Suwon-si, KR 107 769
Kim, Ji Yeong Suwon-si, KR 23 14
Won, Yuho Seoul, KR 72 317

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