The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2024
Filed:
Nov. 11, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Sung Woo Kim, Hwaseong-si, KR;
Jin A Kim, Suwon-si, KR;
Tae Hyung Kim, Seoul, KR;
Kun Su Park, Seongnam-si, KR;
Yuho Won, Seoul, KR;
Jeong Hee Lee, Seongnam-si, KR;
Eun Joo Jang, Suwon-si, KR;
Hyo Sook Jang, Suwon-si, KR;
Yong Seok Han, Anyang-si, KR;
Heejae Chung, Seoul, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
Abstract
A quantum dot including a core comprising a first semiconductor nanocrystal including a zinc chalcogenide and a semiconductor nanocrystal shell disposed on the surface of the core and comprising zinc, selenium, and sulfur. The quantum dot does not comprise cadmium, emits blue light, and may exhibit a digital diffraction pattern obtained by a Fast Fourier Transform of a transmission electron microscopic image including a (100) facet of a zinc blende structure. In an X-ray diffraction spectrum of the quantum dot, a ratio of a defect peak area with respect to a peak area of a zinc blende crystal structure is less than about 0.8:1. A method of producing the quantum dot, and an electroluminescent device including the quantum dot are also disclosed.