US 12,016,241 B2
Quantum dot device, method of manufacturing the same, and electronic device
Won Sik Yoon, Seoul (KR); Moon Gyu Han, Suwon-si (KR); Kwanghee Kim, Seoul (KR); Heejae Lee, Seongnam-si (KR); Eun Joo Jang, Suwon-si (KR); Tae Hyung Kim, Seoul (KR); and Hyo Sook Jang, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Feb. 9, 2021, as Appl. No. 17/171,008.
Claims priority of application No. 10-2020-0017693 (KR), filed on Feb. 13, 2020; and application No. 10-2021-0017710 (KR), filed on Feb. 8, 2021.
Prior Publication US 2021/0257551 A1, Aug. 19, 2021
Int. Cl. H10K 85/00 (2023.01); B82Y 20/00 (2011.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); H10K 50/11 (2023.01); H10K 50/115 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 71/00 (2023.01); H10K 101/40 (2023.01); H10K 102/00 (2023.01)
CPC H10K 85/00 (2023.02) [B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); H10K 50/11 (2023.02); H10K 50/115 (2023.02); H10K 50/167 (2023.02); H10K 50/171 (2023.02); H10K 71/00 (2023.02); H10K 2101/40 (2023.02); H10K 2102/331 (2023.02)] 23 Claims
OG exemplary drawing
 
1. A quantum dot device, comprising
a first electrode and a second electrode each having a surface opposite the other,
a quantum dot layer between the first electrode and the second electrode,
an electron transport layer between the quantum dot layer and the second electrode, the electron transport layer comprising first inorganic nanoparticles and a first organic material disposed on a surface of or between adjacent first inorganic nanoparticles,
wherein the first inorganic nanoparticles are metal oxide nanoparticles represented by Zn1-xQxO, wherein Q is at least one metal excluding Zn, and 0≤x≤0.5, and
an electron injection layer between the electron transport layer and the second electrode, the electron injection layer comprising second inorganic nanoparticles and a second organic material disposed on a surface of or between adjacent second inorganic nanoparticles,
wherein the second inorganic nanoparticles are different from the first inorganic nanoparticles,
wherein a ratio by weight of an amount of the second organic material to a total amount of the second inorganic nanoparticles and the second organic material in the electron injection layer is less than a ratio by weight of an amount of the first organic material to a total amount of the first inorganic nanoparticles and the first organic material in the electron transport layer.