US 12,414,461 B2
Method of manufacturing organic optoelectronic device, and organic optoelectronic device and display device
Sun-Ha Park, Suwon-si (KR); Gi-Wook Kang, Suwon-si (KR); Eui-Su Kang, Suwon-si (KR); Hun Kim, Suwon-si (KR); Jae-Jin Oh, Suwon-si (KR); Dong-Kyu Ryu, Suwon-si (KR); Sang-Shin Lee, Suwon-si (KR); Han-Ill Lee, Suwon-si (KR); Soo-Hyun Min, Suwon-si (KR); Min-Jee Park, Suwon-si (KR); and Eun-Sun Yu, Suwon-si (KR)
Assigned to SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed on Feb. 1, 2021, as Appl. No. 17/163,861.
Application 17/163,861 is a continuation of application No. 14/903,197, abandoned, previously published as PCT/KR2014/005306, filed on Jun. 17, 2014.
Claims priority of application No. 10-2013-0121569 (KR), filed on Oct. 11, 2013.
Prior Publication US 2021/0175428 A1, Jun. 10, 2021
Int. Cl. H10K 85/60 (2023.01); C09K 11/02 (2006.01); C09K 11/06 (2006.01); C23C 14/02 (2006.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01)
CPC H10K 85/622 (2023.02) [C09K 11/02 (2013.01); C09K 11/06 (2013.01); C23C 14/02 (2013.01); H10K 85/615 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/1092 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02); Y02E 10/549 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of manufacturing an organic light emitting device, the method comprising:
providing an anode and a cathode, and forming an organic layer between the anode and the cathode, wherein the forming the organic layer includes:
(a) heat-treating a first organic host compound and a second organic host compound together, and solidifying the heat-treated first and second organic host compounds through cooling to obtain a solidified host organic material, and
(b) dry coating the solidified organic host material and a dopant to form the organic layer, the dry coating including one or more of evaporation, sputtering, plasma plating, and ion plating,
wherein:
the heat-treating of (a) is performed by subliming the first organic host compound and the second organic host compound, and
a difference between evaporation temperatures of the first organic host compound and the second organic host compound is less than or equal to 20° C. as determined at a same pressure at less than or equal to 10−3 torr, wherein the evaporation temperatures of the respective first and second organic host compounds are determined as a temperature at which the respective one of the first and second organic host compounds deposits on a substrate at a rate of rate of about 0.5 to about 2 Å/sec under a vacuum of less than or equal to about 10−3 Torr.