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ABSTRACT
A novel dual core system was recently developed for producing highly efficient organic emitters. Triple-core chromophores were prepared by extending a dual core chromophore. 1,6-Di-anthracen-9-yl-pyrene (1,6 DAP core), 6,12-di-anthracen-9-yl-chrysene (DAC core), and 2,7-di-anthracen-9-yl-pyrene (2,7 DAP core) were designed and synthesized. Its physical and electroluminescent properties were also investigated. Triple-core chromophores were used for the blue fluorescent emitters. A structure of the device was fabricated as ITO/2-TNATA (60 nm)/ NPB (15 nm)/synthesized materials (35 nm)/Alq3 (20 nm)/LiF (1 nm)/Al (200 nm). The device performance of 1,6 DAP core, DAC core, and 2,7 DAP core at 10 mA/cm2 corresponded to luminance efficiencies of 4.97 cd/A, 3.95 cd/A, and 3.50 cd/A, respectively.
Funding
This research was supported by a grant from the Technology Development Program for Strategic Core Materials funded by the Ministry of Trade, Industry & Energy, Republic of Korea (Project No. 10047758). This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education (No. 2016R1D1A1B03931477). This research was also supported by National R&D Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science & ICT (No. 2017M3A7B4041699).